tmdc.c
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上传日期:2013-02-24
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- /*
- * $Id: tmdc.c,v 1.23 2000/11/29 19:52:24 vojtech Exp $
- *
- * Copyright (c) 1998-2000 Vojtech Pavlik
- *
- * Sponsored by SuSE
- *
- * Based on the work of:
- * Trystan Larey-Williams
- *
- */
- /*
- * ThrustMaster DirectConnect (BSP) joystick family driver for Linux
- */
- /*
- * This program is free software; 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@suse.cz>, or by paper mail:
- * Vojtech Pavlik, Ucitelska 1576, Prague 8, 182 00 Czech Republic
- */
- #include <linux/delay.h>
- #include <linux/kernel.h>
- #include <linux/slab.h>
- #include <linux/module.h>
- #include <linux/init.h>
- #include <linux/gameport.h>
- #include <linux/input.h>
- #define TMDC_MAX_START 400 /* 400 us */
- #define TMDC_MAX_STROBE 45 /* 45 us */
- #define TMDC_MAX_LENGTH 13
- #define TMDC_REFRESH_TIME HZ/50 /* 20 ms */
- #define TMDC_MODE_M3DI 1
- #define TMDC_MODE_3DRP 3
- #define TMDC_MODE_AT 4
- #define TMDC_MODE_FM 8
- #define TMDC_MODE_FGP 163
- #define TMDC_BYTE_ID 10
- #define TMDC_BYTE_REV 11
- #define TMDC_BYTE_DEF 12
- #define TMDC_ABS 7
- #define TMDC_ABS_HAT 4
- #define TMDC_BTN 16
- static unsigned char tmdc_byte_a[16] = { 0, 1, 3, 4, 6, 7 };
- static unsigned char tmdc_byte_d[16] = { 2, 5, 8, 9 };
- static signed char tmdc_abs[TMDC_ABS] =
- { ABS_X, ABS_Y, ABS_RUDDER, ABS_THROTTLE, ABS_RX, ABS_RY, ABS_RZ };
- static signed char tmdc_abs_hat[TMDC_ABS_HAT] =
- { ABS_HAT0X, ABS_HAT0Y, ABS_HAT1X, ABS_HAT1Y };
- static signed char tmdc_abs_at[TMDC_ABS] =
- { ABS_X, ABS_Y, ABS_RUDDER, -1, ABS_THROTTLE };
- static signed char tmdc_abs_fm[TMDC_ABS] =
- { ABS_RX, ABS_RY, ABS_X, ABS_Y };
- static short tmdc_btn_pad[TMDC_BTN] =
- { BTN_A, BTN_B, BTN_C, BTN_X, BTN_Y, BTN_Z, BTN_START, BTN_SELECT, BTN_TL, BTN_TR };
- static short tmdc_btn_joy[TMDC_BTN] =
- { BTN_TRIGGER, BTN_THUMB, BTN_TOP, BTN_TOP2, BTN_BASE, BTN_BASE2, BTN_THUMB2, BTN_PINKIE,
- BTN_BASE3, BTN_BASE4, BTN_A, BTN_B, BTN_C, BTN_X, BTN_Y, BTN_Z };
- static short tmdc_btn_fm[TMDC_BTN] =
- { BTN_TRIGGER, BTN_C, BTN_B, BTN_A, BTN_THUMB, BTN_X, BTN_Y, BTN_Z, BTN_TOP, BTN_TOP2 };
- static short tmdc_btn_at[TMDC_BTN] =
- { BTN_TRIGGER, BTN_THUMB2, BTN_PINKIE, BTN_THUMB, BTN_BASE6, BTN_BASE5, BTN_BASE4,
- BTN_BASE3, BTN_BASE2, BTN_BASE };
- static struct {
- int x;
- int y;
- } tmdc_hat_to_axis[] = {{ 0, 0}, { 1, 0}, { 0,-1}, {-1, 0}, { 0, 1}};
- struct tmdc {
- struct gameport *gameport;
- struct timer_list timer;
- struct input_dev dev[2];
- char name[2][64];
- int mode[2];
- signed char *abs[2];
- short *btn[2];
- unsigned char absc[2];
- unsigned char btnc[2][4];
- unsigned char btno[2][4];
- int used;
- int reads;
- int bads;
- unsigned char exists;
- };
- /*
- * tmdc_read_packet() reads a ThrustMaster packet.
- */
- static int tmdc_read_packet(struct gameport *gameport, unsigned char data[2][TMDC_MAX_LENGTH])
- {
- unsigned char u, v, w, x;
- unsigned long flags;
- int i[2], j[2], t[2], p, k;
- p = gameport_time(gameport, TMDC_MAX_STROBE);
- for (k = 0; k < 2; k++) {
- t[k] = gameport_time(gameport, TMDC_MAX_START);
- i[k] = j[k] = 0;
- }
- __save_flags(flags);
- __cli();
- gameport_trigger(gameport);
-
- w = gameport_read(gameport) >> 4;
- do {
- x = w;
- w = gameport_read(gameport) >> 4;
- for (k = 0, v = w, u = x; k < 2; k++, v >>= 2, u >>= 2) {
- if (~v & u & 2) {
- if (t[k] <= 0 || i[k] >= TMDC_MAX_LENGTH) continue;
- t[k] = p;
- if (j[k] == 0) { /* Start bit */
- if (~v & 1) t[k] = 0;
- data[k][i[k]] = 0; j[k]++; continue;
- }
- if (j[k] == 9) { /* Stop bit */
- if (v & 1) t[k] = 0;
- j[k] = 0; i[k]++; continue;
- }
- data[k][i[k]] |= (~v & 1) << (j[k]++ - 1); /* Data bit */
- }
- t[k]--;
- }
- } while (t[0] > 0 || t[1] > 0);
- __restore_flags(flags);
- return (i[0] == TMDC_MAX_LENGTH) | ((i[1] == TMDC_MAX_LENGTH) << 1);
- }
- /*
- * tmdc_read() reads and analyzes ThrustMaster joystick data.
- */
- static void tmdc_timer(unsigned long private)
- {
- unsigned char data[2][TMDC_MAX_LENGTH];
- struct tmdc *tmdc = (void *) private;
- struct input_dev *dev;
- unsigned char r, bad = 0;
- int i, j, k, l;
- tmdc->reads++;
- if ((r = tmdc_read_packet(tmdc->gameport, data)) != tmdc->exists)
- bad = 1;
- for (j = 0; j < 2; j++)
- if (r & (1 << j) & tmdc->exists) {
- if (data[j][TMDC_BYTE_ID] != tmdc->mode[j]) {
- bad = 1;
- continue;
- }
- dev = tmdc->dev + j;
- for (i = 0; i < tmdc->absc[j]; i++) {
- if (tmdc->abs[j][i] < 0) continue;
- input_report_abs(dev, tmdc->abs[j][i], data[j][tmdc_byte_a[i]]);
- }
- switch (tmdc->mode[j]) {
- case TMDC_MODE_M3DI:
- i = tmdc_byte_d[0];
- input_report_abs(dev, ABS_HAT0X, ((data[j][i] >> 3) & 1) - ((data[j][i] >> 1) & 1));
- input_report_abs(dev, ABS_HAT0Y, ((data[j][i] >> 2) & 1) - ( data[j][i] & 1));
- break;
- case TMDC_MODE_AT:
- i = tmdc_byte_a[3];
- input_report_abs(dev, ABS_HAT0X, tmdc_hat_to_axis[(data[j][i] - 141) / 25].x);
- input_report_abs(dev, ABS_HAT0Y, tmdc_hat_to_axis[(data[j][i] - 141) / 25].y);
- break;
- }
- for (k = l = 0; k < 4; k++) {
- for (i = 0; i < tmdc->btnc[j][k]; i++)
- input_report_key(dev, tmdc->btn[j][i + l],
- ((data[j][tmdc_byte_d[k]] >> (i + tmdc->btno[j][k])) & 1));
- l += tmdc->btnc[j][k];
- }
- }
- tmdc->bads += bad;
- mod_timer(&tmdc->timer, jiffies + TMDC_REFRESH_TIME);
- }
- static int tmdc_open(struct input_dev *dev)
- {
- struct tmdc *tmdc = dev->private;
- if (!tmdc->used++)
- mod_timer(&tmdc->timer, jiffies + TMDC_REFRESH_TIME);
- return 0;
- }
- static void tmdc_close(struct input_dev *dev)
- {
- struct tmdc *tmdc = dev->private;
- if (!--tmdc->used)
- del_timer(&tmdc->timer);
- }
- /*
- * tmdc_probe() probes for ThrustMaster type joysticks.
- */
- static void tmdc_connect(struct gameport *gameport, struct gameport_dev *dev)
- {
- struct models {
- unsigned char id;
- char *name;
- char abs;
- char hats;
- char btnc[4];
- char btno[4];
- signed char *axes;
- short *buttons;
- } models[] = { { 1, "ThrustMaster Millenium 3D Inceptor", 6, 2, { 4, 2 }, { 4, 6 }, tmdc_abs, tmdc_btn_joy },
- { 3, "ThrustMaster Rage 3D Gamepad", 2, 0, { 8, 2 }, { 0, 0 }, tmdc_abs, tmdc_btn_pad },
- { 4, "ThrustMaster Attack Throttle", 5, 2, { 4, 6 }, { 4, 2 }, tmdc_abs_at, tmdc_btn_at },
- { 8, "ThrustMaster FragMaster", 4, 0, { 8, 2 }, { 0, 0 }, tmdc_abs_fm, tmdc_btn_fm },
- { 163, "Thrustmaster Fusion GamePad", 2, 0, { 8, 2 }, { 0, 0 }, tmdc_abs, tmdc_btn_pad },
- { 0, "Unknown %d-axis, %d-button TM device %d", 0, 0, { 0, 0 }, { 0, 0 }, tmdc_abs, tmdc_btn_joy }};
- unsigned char data[2][TMDC_MAX_LENGTH];
- struct tmdc *tmdc;
- int i, j, k, l, m;
- if (!(tmdc = kmalloc(sizeof(struct tmdc), GFP_KERNEL)))
- return;
- memset(tmdc, 0, sizeof(struct tmdc));
- gameport->private = tmdc;
- tmdc->gameport = gameport;
- init_timer(&tmdc->timer);
- tmdc->timer.data = (long) tmdc;
- tmdc->timer.function = tmdc_timer;
- if (gameport_open(gameport, dev, GAMEPORT_MODE_RAW))
- goto fail1;
- if (!(tmdc->exists = tmdc_read_packet(gameport, data)))
- goto fail2;
- for (j = 0; j < 2; j++)
- if (tmdc->exists & (1 << j)) {
- tmdc->mode[j] = data[j][TMDC_BYTE_ID];
- for (m = 0; models[m].id && models[m].id != tmdc->mode[j]; m++);
- tmdc->abs[j] = models[m].axes;
- tmdc->btn[j] = models[m].buttons;
- if (!models[m].id) {
- models[m].abs = data[j][TMDC_BYTE_DEF] >> 4;
- for (k = 0; k < 4; k++)
- models[m].btnc[k] = k < (data[j][TMDC_BYTE_DEF] & 0xf) ? 8 : 0;
- }
- tmdc->absc[j] = models[m].abs;
- for (k = 0; k < 4; k++) {
- tmdc->btnc[j][k] = models[m].btnc[k];
- tmdc->btno[j][k] = models[m].btno[k];
- }
- sprintf(tmdc->name[j], models[m].name, models[m].abs,
- (data[j][TMDC_BYTE_DEF] & 0xf) << 3, tmdc->mode[j]);
- tmdc->dev[j].private = tmdc;
- tmdc->dev[j].open = tmdc_open;
- tmdc->dev[j].close = tmdc_close;
- tmdc->dev[j].name = tmdc->name[j];
- tmdc->dev[j].idbus = BUS_GAMEPORT;
- tmdc->dev[j].idvendor = GAMEPORT_ID_VENDOR_THRUSTMASTER;
- tmdc->dev[j].idproduct = models[m].id;
- tmdc->dev[j].idversion = 0x0100;
- tmdc->dev[j].evbit[0] = BIT(EV_KEY) | BIT(EV_ABS);
- for (i = 0; i < models[m].abs && i < TMDC_ABS; i++) {
- if (tmdc->abs[i] < 0) continue;
- set_bit(tmdc->abs[j][i], tmdc->dev[j].absbit);
- tmdc->dev[j].absmin[tmdc->abs[j][i]] = 8;
- tmdc->dev[j].absmax[tmdc->abs[j][i]] = 248;
- tmdc->dev[j].absfuzz[tmdc->abs[j][i]] = 2;
- tmdc->dev[j].absflat[tmdc->abs[j][i]] = 4;
- }
- for (i = 0; i < models[m].hats && i < TMDC_ABS_HAT; i++) {
- set_bit(tmdc_abs_hat[i], tmdc->dev[j].absbit);
- tmdc->dev[j].absmin[tmdc_abs_hat[i]] = -1;
- tmdc->dev[j].absmax[tmdc_abs_hat[i]] = 1;
- }
- for (k = l = 0; k < 4; k++) {
- for (i = 0; i < models[m].btnc[k] && i < TMDC_BTN; i++)
- set_bit(tmdc->btn[j][i + l], tmdc->dev[j].keybit);
- l += models[m].btnc[k];
- }
- input_register_device(tmdc->dev + j);
- printk(KERN_INFO "input%d: %s on gameport%d.%dn",
- tmdc->dev[j].number, tmdc->name[j], gameport->number, j);
- }
- return;
- fail2: gameport_close(gameport);
- fail1: kfree(tmdc);
- }
- static void tmdc_disconnect(struct gameport *gameport)
- {
- struct tmdc *tmdc = gameport->private;
- int i;
- for (i = 0; i < 2; i++)
- if (tmdc->exists & (1 << i))
- input_unregister_device(tmdc->dev + i);
- gameport_close(gameport);
- kfree(tmdc);
- }
- static struct gameport_dev tmdc_dev = {
- connect: tmdc_connect,
- disconnect: tmdc_disconnect,
- };
- int __init tmdc_init(void)
- {
- gameport_register_device(&tmdc_dev);
- return 0;
- }
- void __exit tmdc_exit(void)
- {
- gameport_unregister_device(&tmdc_dev);
- }
- module_init(tmdc_init);
- module_exit(tmdc_exit);
- MODULE_LICENSE("GPL");