11da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 21da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Copyright (c) 1998-2001 Vojtech Pavlik 31da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 41da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 51da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 61da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Gravis/Kensington GrIP protocol joystick and gamepad driver for Linux 71da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 81da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 91da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * This program is free software; you can redistribute it and/or modify 111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * it under the terms of the GNU General Public License as published by 121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * the Free Software Foundation; either version 2 of the License, or 131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * (at your option) any later version. 141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * This program is distributed in the hope that it will be useful, 161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * but WITHOUT ANY WARRANTY; without even the implied warranty of 171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * GNU General Public License for more details. 191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * You should have received a copy of the GNU General Public License 211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * along with this program; if not, write to the Free Software 221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Should you need to contact me, the author, you can do so either by 251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail: 261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic 271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/kernel.h> 301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/module.h> 311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/init.h> 321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/slab.h> 331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/gameport.h> 341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/input.h> 354e57b6817880946a3a78d5d8cad1ace363f7e449Tim Schmielau#include <linux/jiffies.h> 361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define DRIVER_DESC "Gravis GrIP protocol joystick driver" 381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsMODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>"); 401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsMODULE_DESCRIPTION(DRIVER_DESC); 411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsMODULE_LICENSE("GPL"); 421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define GRIP_MODE_GPP 1 441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define GRIP_MODE_BD 2 451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define GRIP_MODE_XT 3 461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define GRIP_MODE_DC 4 471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define GRIP_LENGTH_GPP 24 491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define GRIP_STROBE_GPP 200 /* 200 us */ 501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define GRIP_LENGTH_XT 4 511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define GRIP_STROBE_XT 64 /* 64 us */ 521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define GRIP_MAX_CHUNKS_XT 10 531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define GRIP_MAX_BITS_XT 30 541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct grip { 561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct gameport *gameport; 5717dd3f0f7aa729a042af5d3318ff9b3e7781b45bDmitry Torokhov struct input_dev *dev[2]; 581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned char mode[2]; 591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int reads; 601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int bads; 611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds char phys[2][32]; 621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int grip_btn_gpp[] = { BTN_START, BTN_SELECT, BTN_TR2, BTN_Y, 0, BTN_TL2, BTN_A, BTN_B, BTN_X, 0, BTN_TL, BTN_TR, -1 }; 651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int grip_btn_bd[] = { BTN_THUMB, BTN_THUMB2, BTN_TRIGGER, BTN_TOP, BTN_BASE, -1 }; 661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int grip_btn_xt[] = { BTN_TRIGGER, BTN_THUMB, BTN_A, BTN_B, BTN_C, BTN_X, BTN_Y, BTN_Z, BTN_SELECT, BTN_START, BTN_MODE, -1 }; 671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int grip_btn_dc[] = { BTN_TRIGGER, BTN_THUMB, BTN_TOP, BTN_TOP2, BTN_BASE, BTN_BASE2, BTN_BASE3, BTN_BASE4, BTN_BASE5, -1 }; 681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int grip_abs_gpp[] = { ABS_X, ABS_Y, -1 }; 701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int grip_abs_bd[] = { ABS_X, ABS_Y, ABS_THROTTLE, ABS_HAT0X, ABS_HAT0Y, -1 }; 711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int grip_abs_xt[] = { ABS_X, ABS_Y, ABS_BRAKE, ABS_GAS, ABS_THROTTLE, ABS_HAT0X, ABS_HAT0Y, ABS_HAT1X, ABS_HAT1Y, -1 }; 721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int grip_abs_dc[] = { ABS_X, ABS_Y, ABS_RX, ABS_RY, ABS_THROTTLE, ABS_HAT0X, ABS_HAT0Y, -1 }; 731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic char *grip_name[] = { NULL, "Gravis GamePad Pro", "Gravis Blackhawk Digital", 751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds "Gravis Xterminator Digital", "Gravis Xterminator DualControl" }; 761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int *grip_abs[] = { NULL, grip_abs_gpp, grip_abs_bd, grip_abs_xt, grip_abs_dc }; 771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int *grip_btn[] = { NULL, grip_btn_gpp, grip_btn_bd, grip_btn_xt, grip_btn_dc }; 781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic char grip_anx[] = { 0, 0, 3, 5, 5 }; 791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic char grip_cen[] = { 0, 0, 2, 2, 4 }; 801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * grip_gpp_read_packet() reads a Gravis GamePad Pro packet. 831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int grip_gpp_read_packet(struct gameport *gameport, int shift, unsigned int *data) 861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long flags; 881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned char u, v; 891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned int t; 901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int i; 911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int strobe = gameport_time(gameport, GRIP_STROBE_GPP); 931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds data[0] = 0; 951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds t = strobe; 961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i = 0; 971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds local_irq_save(flags); 991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds v = gameport_read(gameport) >> shift; 1011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds do { 1031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds t--; 1041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u = v; v = (gameport_read(gameport) >> shift) & 3; 1051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (~v & u & 1) { 1061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds data[0] |= (v >> 1) << i++; 1071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds t = strobe; 1081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } while (i < GRIP_LENGTH_GPP && t > 0); 1101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds local_irq_restore(flags); 1121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (i < GRIP_LENGTH_GPP) return -1; 1141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = 0; i < GRIP_LENGTH_GPP && (data[0] & 0xfe4210) ^ 0x7c0000; i++) 1161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds data[0] = data[0] >> 1 | (data[0] & 1) << (GRIP_LENGTH_GPP - 1); 1171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -(i == GRIP_LENGTH_GPP); 1191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 1221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * grip_xt_read_packet() reads a Gravis Xterminator packet. 1231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int grip_xt_read_packet(struct gameport *gameport, int shift, unsigned int *data) 1261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned int i, j, buf, crc; 1281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned char u, v, w; 1291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long flags; 1301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned int t; 1311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds char status; 1321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int strobe = gameport_time(gameport, GRIP_STROBE_XT); 1341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds data[0] = data[1] = data[2] = data[3] = 0; 1361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds status = buf = i = j = 0; 1371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds t = strobe; 1381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds local_irq_save(flags); 1401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds v = w = (gameport_read(gameport) >> shift) & 3; 1421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds do { 1441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds t--; 1451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u = (gameport_read(gameport) >> shift) & 3; 1461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (u ^ v) { 1481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((u ^ v) & 1) { 1501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds buf = (buf << 1) | (u >> 1); 1511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds t = strobe; 1521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i++; 1531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else 1541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((((u ^ v) & (v ^ w)) >> 1) & ~(u | v | w) & 1) { 1561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (i == 20) { 1571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds crc = buf ^ (buf >> 7) ^ (buf >> 14); 1581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!((crc ^ (0x25cb9e70 >> ((crc >> 2) & 0x1c))) & 0xf)) { 1591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds data[buf >> 18] = buf >> 4; 1601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds status |= 1 << (buf >> 18); 1611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds j++; 1631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds t = strobe; 1651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds buf = 0; 1661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds i = 0; 1671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds w = v; 1691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds v = u; 1701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } while (status != 0xf && i < GRIP_MAX_BITS_XT && j < GRIP_MAX_CHUNKS_XT && t > 0); 1731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds local_irq_restore(flags); 1751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -(status != 0xf); 1771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 1801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * grip_timer() repeatedly polls the joysticks and generates events. 1811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void grip_poll(struct gameport *gameport) 1841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct grip *grip = gameport_get_drvdata(gameport); 1861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned int data[GRIP_LENGTH_XT]; 1871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct input_dev *dev; 1881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int i, j; 1891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = 0; i < 2; i++) { 1911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 19217dd3f0f7aa729a042af5d3318ff9b3e7781b45bDmitry Torokhov dev = grip->dev[i]; 1933575c3410071dc778d2d9c6002493a5dce73ec0bDmitry Torokhov if (!dev) 1943575c3410071dc778d2d9c6002493a5dce73ec0bDmitry Torokhov continue; 1953575c3410071dc778d2d9c6002493a5dce73ec0bDmitry Torokhov 1961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds grip->reads++; 1971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds switch (grip->mode[i]) { 1991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case GRIP_MODE_GPP: 2011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (grip_gpp_read_packet(grip->gameport, (i << 1) + 4, data)) { 2031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds grip->bads++; 2041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 2051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 2061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds input_report_abs(dev, ABS_X, ((*data >> 15) & 1) - ((*data >> 16) & 1)); 2081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds input_report_abs(dev, ABS_Y, ((*data >> 13) & 1) - ((*data >> 12) & 1)); 2091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (j = 0; j < 12; j++) 2111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (grip_btn_gpp[j]) 2121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds input_report_key(dev, grip_btn_gpp[j], (*data >> j) & 1); 2131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 2151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case GRIP_MODE_BD: 2171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (grip_xt_read_packet(grip->gameport, (i << 1) + 4, data)) { 2191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds grip->bads++; 2201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 2211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 2221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds input_report_abs(dev, ABS_X, (data[0] >> 2) & 0x3f); 2241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds input_report_abs(dev, ABS_Y, 63 - ((data[0] >> 8) & 0x3f)); 2251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds input_report_abs(dev, ABS_THROTTLE, (data[2] >> 8) & 0x3f); 2261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds input_report_abs(dev, ABS_HAT0X, ((data[2] >> 1) & 1) - ( data[2] & 1)); 2281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds input_report_abs(dev, ABS_HAT0Y, ((data[2] >> 2) & 1) - ((data[2] >> 3) & 1)); 2291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (j = 0; j < 5; j++) 2311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds input_report_key(dev, grip_btn_bd[j], (data[3] >> (j + 4)) & 1); 2321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 2341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case GRIP_MODE_XT: 2361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (grip_xt_read_packet(grip->gameport, (i << 1) + 4, data)) { 2381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds grip->bads++; 2391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 2401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 2411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds input_report_abs(dev, ABS_X, (data[0] >> 2) & 0x3f); 2431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds input_report_abs(dev, ABS_Y, 63 - ((data[0] >> 8) & 0x3f)); 2441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds input_report_abs(dev, ABS_BRAKE, (data[1] >> 2) & 0x3f); 2451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds input_report_abs(dev, ABS_GAS, (data[1] >> 8) & 0x3f); 2461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds input_report_abs(dev, ABS_THROTTLE, (data[2] >> 8) & 0x3f); 2471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds input_report_abs(dev, ABS_HAT0X, ((data[2] >> 1) & 1) - ( data[2] & 1)); 2491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds input_report_abs(dev, ABS_HAT0Y, ((data[2] >> 2) & 1) - ((data[2] >> 3) & 1)); 2501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds input_report_abs(dev, ABS_HAT1X, ((data[2] >> 5) & 1) - ((data[2] >> 4) & 1)); 2511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds input_report_abs(dev, ABS_HAT1Y, ((data[2] >> 6) & 1) - ((data[2] >> 7) & 1)); 2521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (j = 0; j < 11; j++) 2541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds input_report_key(dev, grip_btn_xt[j], (data[3] >> (j + 3)) & 1); 2551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 2561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds case GRIP_MODE_DC: 2581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (grip_xt_read_packet(grip->gameport, (i << 1) + 4, data)) { 2601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds grip->bads++; 2611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 2621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 2631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds input_report_abs(dev, ABS_X, (data[0] >> 2) & 0x3f); 2651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds input_report_abs(dev, ABS_Y, (data[0] >> 8) & 0x3f); 2661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds input_report_abs(dev, ABS_RX, (data[1] >> 2) & 0x3f); 2671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds input_report_abs(dev, ABS_RY, (data[1] >> 8) & 0x3f); 2681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds input_report_abs(dev, ABS_THROTTLE, (data[2] >> 8) & 0x3f); 2691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds input_report_abs(dev, ABS_HAT0X, ((data[2] >> 1) & 1) - ( data[2] & 1)); 2711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds input_report_abs(dev, ABS_HAT0Y, ((data[2] >> 2) & 1) - ((data[2] >> 3) & 1)); 2721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (j = 0; j < 9; j++) 2741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds input_report_key(dev, grip_btn_dc[j], (data[3] >> (j + 3)) & 1); 2751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds break; 2761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 2791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds input_sync(dev); 2811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 2821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 2831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int grip_open(struct input_dev *dev) 2851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2868715c1cfadf8cce24e79d254f95bd4a84c7741f0Dmitry Torokhov struct grip *grip = input_get_drvdata(dev); 2871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds gameport_start_polling(grip->gameport); 2891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 2901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 2911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void grip_close(struct input_dev *dev) 2931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2948715c1cfadf8cce24e79d254f95bd4a84c7741f0Dmitry Torokhov struct grip *grip = input_get_drvdata(dev); 2951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds gameport_stop_polling(grip->gameport); 2971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 2981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int grip_connect(struct gameport *gameport, struct gameport_driver *drv) 3001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 3011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct grip *grip; 30217dd3f0f7aa729a042af5d3318ff9b3e7781b45bDmitry Torokhov struct input_dev *input_dev; 3031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned int data[GRIP_LENGTH_XT]; 3041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int i, j, t; 3051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int err; 3061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 307a97e148a8b8da8b04bc3e18ceb824a8f5f56d567Pekka Enberg if (!(grip = kzalloc(sizeof(struct grip), GFP_KERNEL))) 3081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -ENOMEM; 3091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds grip->gameport = gameport; 3111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds gameport_set_drvdata(gameport, grip); 3131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds err = gameport_open(gameport, drv, GAMEPORT_MODE_RAW); 3151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (err) 3161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto fail1; 3171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = 0; i < 2; i++) { 3191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!grip_gpp_read_packet(gameport, (i << 1) + 4, data)) { 3201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds grip->mode[i] = GRIP_MODE_GPP; 3211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds continue; 3221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 3231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!grip_xt_read_packet(gameport, (i << 1) + 4, data)) { 3241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!(data[3] & 7)) { 3251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds grip->mode[i] = GRIP_MODE_BD; 3261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds continue; 3271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 3281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!(data[2] & 0xf0)) { 3291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds grip->mode[i] = GRIP_MODE_XT; 3301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds continue; 3311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 3321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds grip->mode[i] = GRIP_MODE_DC; 3331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds continue; 3341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 3351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 3361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!grip->mode[0] && !grip->mode[1]) { 3381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds err = -ENODEV; 3391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto fail2; 3401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 3411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds gameport_set_poll_handler(gameport, grip_poll); 3431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds gameport_set_poll_interval(gameport, 20); 3441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 34517dd3f0f7aa729a042af5d3318ff9b3e7781b45bDmitry Torokhov for (i = 0; i < 2; i++) { 34617dd3f0f7aa729a042af5d3318ff9b3e7781b45bDmitry Torokhov if (!grip->mode[i]) 34717dd3f0f7aa729a042af5d3318ff9b3e7781b45bDmitry Torokhov continue; 3481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 34917dd3f0f7aa729a042af5d3318ff9b3e7781b45bDmitry Torokhov grip->dev[i] = input_dev = input_allocate_device(); 35017dd3f0f7aa729a042af5d3318ff9b3e7781b45bDmitry Torokhov if (!input_dev) { 35117dd3f0f7aa729a042af5d3318ff9b3e7781b45bDmitry Torokhov err = -ENOMEM; 35217dd3f0f7aa729a042af5d3318ff9b3e7781b45bDmitry Torokhov goto fail3; 35317dd3f0f7aa729a042af5d3318ff9b3e7781b45bDmitry Torokhov } 3541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 35510ca4c0a622a942e55dc8a6d57ebd441089c9e38Dmitry Torokhov snprintf(grip->phys[i], sizeof(grip->phys[i]), 35610ca4c0a622a942e55dc8a6d57ebd441089c9e38Dmitry Torokhov "%s/input%d", gameport->phys, i); 3571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 35817dd3f0f7aa729a042af5d3318ff9b3e7781b45bDmitry Torokhov input_dev->name = grip_name[grip->mode[i]]; 35917dd3f0f7aa729a042af5d3318ff9b3e7781b45bDmitry Torokhov input_dev->phys = grip->phys[i]; 36017dd3f0f7aa729a042af5d3318ff9b3e7781b45bDmitry Torokhov input_dev->id.bustype = BUS_GAMEPORT; 36117dd3f0f7aa729a042af5d3318ff9b3e7781b45bDmitry Torokhov input_dev->id.vendor = GAMEPORT_ID_VENDOR_GRAVIS; 36217dd3f0f7aa729a042af5d3318ff9b3e7781b45bDmitry Torokhov input_dev->id.product = grip->mode[i]; 36317dd3f0f7aa729a042af5d3318ff9b3e7781b45bDmitry Torokhov input_dev->id.version = 0x0100; 364935e658e89678a7e3427b90cd7a1c86025d95bfeDmitry Torokhov input_dev->dev.parent = &gameport->dev; 3658715c1cfadf8cce24e79d254f95bd4a84c7741f0Dmitry Torokhov 3668715c1cfadf8cce24e79d254f95bd4a84c7741f0Dmitry Torokhov input_set_drvdata(input_dev, grip); 3671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 36817dd3f0f7aa729a042af5d3318ff9b3e7781b45bDmitry Torokhov input_dev->open = grip_open; 36917dd3f0f7aa729a042af5d3318ff9b3e7781b45bDmitry Torokhov input_dev->close = grip_close; 3701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3717b19ada2ed3c1eccb9fe94d74b05e1428224663dJiri Slaby input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS); 3721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 37317dd3f0f7aa729a042af5d3318ff9b3e7781b45bDmitry Torokhov for (j = 0; (t = grip_abs[grip->mode[i]][j]) >= 0; j++) { 3741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 37517dd3f0f7aa729a042af5d3318ff9b3e7781b45bDmitry Torokhov if (j < grip_cen[grip->mode[i]]) 37617dd3f0f7aa729a042af5d3318ff9b3e7781b45bDmitry Torokhov input_set_abs_params(input_dev, t, 14, 52, 1, 2); 37717dd3f0f7aa729a042af5d3318ff9b3e7781b45bDmitry Torokhov else if (j < grip_anx[grip->mode[i]]) 37817dd3f0f7aa729a042af5d3318ff9b3e7781b45bDmitry Torokhov input_set_abs_params(input_dev, t, 3, 57, 1, 0); 37917dd3f0f7aa729a042af5d3318ff9b3e7781b45bDmitry Torokhov else 38017dd3f0f7aa729a042af5d3318ff9b3e7781b45bDmitry Torokhov input_set_abs_params(input_dev, t, -1, 1, 0, 0); 38117dd3f0f7aa729a042af5d3318ff9b3e7781b45bDmitry Torokhov } 3821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 38317dd3f0f7aa729a042af5d3318ff9b3e7781b45bDmitry Torokhov for (j = 0; (t = grip_btn[grip->mode[i]][j]) >= 0; j++) 38417dd3f0f7aa729a042af5d3318ff9b3e7781b45bDmitry Torokhov if (t > 0) 38517dd3f0f7aa729a042af5d3318ff9b3e7781b45bDmitry Torokhov set_bit(t, input_dev->keybit); 3861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3870399addd71565b27eae27821fa04dad44f8644feDmitry Torokhov err = input_register_device(grip->dev[i]); 3880399addd71565b27eae27821fa04dad44f8644feDmitry Torokhov if (err) 3890399addd71565b27eae27821fa04dad44f8644feDmitry Torokhov goto fail4; 39017dd3f0f7aa729a042af5d3318ff9b3e7781b45bDmitry Torokhov } 3911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 3931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3940399addd71565b27eae27821fa04dad44f8644feDmitry Torokhov fail4: input_free_device(grip->dev[i]); 3950399addd71565b27eae27821fa04dad44f8644feDmitry Torokhov fail3: while (--i >= 0) 39617dd3f0f7aa729a042af5d3318ff9b3e7781b45bDmitry Torokhov if (grip->dev[i]) 39717dd3f0f7aa729a042af5d3318ff9b3e7781b45bDmitry Torokhov input_unregister_device(grip->dev[i]); 39817dd3f0f7aa729a042af5d3318ff9b3e7781b45bDmitry Torokhov fail2: gameport_close(gameport); 39917dd3f0f7aa729a042af5d3318ff9b3e7781b45bDmitry Torokhov fail1: gameport_set_drvdata(gameport, NULL); 4001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kfree(grip); 4011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return err; 4021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 4031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void grip_disconnect(struct gameport *gameport) 4051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 4061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct grip *grip = gameport_get_drvdata(gameport); 4071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int i; 4081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = 0; i < 2; i++) 41017dd3f0f7aa729a042af5d3318ff9b3e7781b45bDmitry Torokhov if (grip->dev[i]) 41117dd3f0f7aa729a042af5d3318ff9b3e7781b45bDmitry Torokhov input_unregister_device(grip->dev[i]); 4121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds gameport_close(gameport); 4131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds gameport_set_drvdata(gameport, NULL); 4141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds kfree(grip); 4151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 4161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic struct gameport_driver grip_drv = { 4181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .driver = { 4191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .name = "grip", 4200399addd71565b27eae27821fa04dad44f8644feDmitry Torokhov .owner = THIS_MODULE, 4211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds }, 4221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .description = DRIVER_DESC, 4231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .connect = grip_connect, 4241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .disconnect = grip_disconnect, 4251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 4261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int __init grip_init(void) 4281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 4292547203d583cc267b98f518d5d93e3a0469d8f62Dmitry Torokhov return gameport_register_driver(&grip_drv); 4301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 4311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void __exit grip_exit(void) 4331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 4341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds gameport_unregister_driver(&grip_drv); 4351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 4361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsmodule_init(grip_init); 4381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsmodule_exit(grip_exit); 439