435 lines
11 KiB
C
435 lines
11 KiB
C
/*
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* Copyright (c) 1998-2001 Vojtech Pavlik
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*
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* Based on the work of:
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* Trystan Larey-Williams
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*/
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/*
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* ThrustMaster DirectConnect (BSP) joystick family driver for Linux
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*/
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/*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include <linux/delay.h>
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#include <linux/kernel.h>
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#include <linux/slab.h>
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#include <linux/module.h>
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#include <linux/gameport.h>
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#include <linux/input.h>
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#include <linux/jiffies.h>
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#define DRIVER_DESC "ThrustMaster DirectConnect joystick driver"
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MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
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MODULE_DESCRIPTION(DRIVER_DESC);
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MODULE_LICENSE("GPL");
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#define TMDC_MAX_START 600 /* 600 us */
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#define TMDC_MAX_STROBE 60 /* 60 us */
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#define TMDC_MAX_LENGTH 13
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#define TMDC_MODE_M3DI 1
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#define TMDC_MODE_3DRP 3
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#define TMDC_MODE_AT 4
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#define TMDC_MODE_FM 8
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#define TMDC_MODE_FGP 163
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#define TMDC_BYTE_ID 10
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#define TMDC_BYTE_REV 11
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#define TMDC_BYTE_DEF 12
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#define TMDC_ABS 7
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#define TMDC_ABS_HAT 4
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#define TMDC_BTN 16
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static const unsigned char tmdc_byte_a[16] = { 0, 1, 3, 4, 6, 7 };
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static const unsigned char tmdc_byte_d[16] = { 2, 5, 8, 9 };
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static const signed char tmdc_abs[TMDC_ABS] =
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{ ABS_X, ABS_Y, ABS_RUDDER, ABS_THROTTLE, ABS_RX, ABS_RY, ABS_RZ };
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static const signed char tmdc_abs_hat[TMDC_ABS_HAT] =
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{ ABS_HAT0X, ABS_HAT0Y, ABS_HAT1X, ABS_HAT1Y };
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static const signed char tmdc_abs_at[TMDC_ABS] =
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{ ABS_X, ABS_Y, ABS_RUDDER, -1, ABS_THROTTLE };
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static const signed char tmdc_abs_fm[TMDC_ABS] =
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{ ABS_RX, ABS_RY, ABS_X, ABS_Y };
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static const short tmdc_btn_pad[TMDC_BTN] =
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{ BTN_A, BTN_B, BTN_C, BTN_X, BTN_Y, BTN_Z, BTN_START, BTN_SELECT, BTN_TL, BTN_TR };
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static const short tmdc_btn_joy[TMDC_BTN] =
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{ BTN_TRIGGER, BTN_THUMB, BTN_TOP, BTN_TOP2, BTN_BASE, BTN_BASE2, BTN_THUMB2, BTN_PINKIE,
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BTN_BASE3, BTN_BASE4, BTN_A, BTN_B, BTN_C, BTN_X, BTN_Y, BTN_Z };
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static const short tmdc_btn_fm[TMDC_BTN] =
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{ BTN_TRIGGER, BTN_C, BTN_B, BTN_A, BTN_THUMB, BTN_X, BTN_Y, BTN_Z, BTN_TOP, BTN_TOP2 };
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static const short tmdc_btn_at[TMDC_BTN] =
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{ BTN_TRIGGER, BTN_THUMB2, BTN_PINKIE, BTN_THUMB, BTN_BASE6, BTN_BASE5, BTN_BASE4,
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BTN_BASE3, BTN_BASE2, BTN_BASE };
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static const struct {
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int x;
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int y;
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} tmdc_hat_to_axis[] = {{ 0, 0}, { 1, 0}, { 0,-1}, {-1, 0}, { 0, 1}};
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static const struct tmdc_model {
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unsigned char id;
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const char *name;
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char abs;
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char hats;
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char btnc[4];
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char btno[4];
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const signed char *axes;
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const short *buttons;
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} tmdc_models[] = {
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{ 1, "ThrustMaster Millenium 3D Inceptor", 6, 2, { 4, 2 }, { 4, 6 }, tmdc_abs, tmdc_btn_joy },
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{ 3, "ThrustMaster Rage 3D Gamepad", 2, 0, { 8, 2 }, { 0, 0 }, tmdc_abs, tmdc_btn_pad },
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{ 4, "ThrustMaster Attack Throttle", 5, 2, { 4, 6 }, { 4, 2 }, tmdc_abs_at, tmdc_btn_at },
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{ 8, "ThrustMaster FragMaster", 4, 0, { 8, 2 }, { 0, 0 }, tmdc_abs_fm, tmdc_btn_fm },
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{ 163, "Thrustmaster Fusion GamePad", 2, 0, { 8, 2 }, { 0, 0 }, tmdc_abs, tmdc_btn_pad },
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{ 0, "Unknown %d-axis, %d-button TM device %d", 0, 0, { 0, 0 }, { 0, 0 }, tmdc_abs, tmdc_btn_joy }
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};
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struct tmdc_port {
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struct input_dev *dev;
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char name[64];
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char phys[32];
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int mode;
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const signed char *abs;
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const short *btn;
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unsigned char absc;
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unsigned char btnc[4];
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unsigned char btno[4];
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};
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struct tmdc {
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struct gameport *gameport;
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struct tmdc_port *port[2];
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#if 0
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struct input_dev *dev[2];
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char name[2][64];
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char phys[2][32];
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int mode[2];
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signed char *abs[2];
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short *btn[2];
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unsigned char absc[2];
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unsigned char btnc[2][4];
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unsigned char btno[2][4];
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#endif
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int reads;
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int bads;
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unsigned char exists;
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};
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/*
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* tmdc_read_packet() reads a ThrustMaster packet.
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*/
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static int tmdc_read_packet(struct gameport *gameport, unsigned char data[2][TMDC_MAX_LENGTH])
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{
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unsigned char u, v, w, x;
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unsigned long flags;
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int i[2], j[2], t[2], p, k;
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p = gameport_time(gameport, TMDC_MAX_STROBE);
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for (k = 0; k < 2; k++) {
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t[k] = gameport_time(gameport, TMDC_MAX_START);
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i[k] = j[k] = 0;
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}
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local_irq_save(flags);
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gameport_trigger(gameport);
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w = gameport_read(gameport) >> 4;
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do {
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x = w;
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w = gameport_read(gameport) >> 4;
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for (k = 0, v = w, u = x; k < 2; k++, v >>= 2, u >>= 2) {
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if (~v & u & 2) {
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if (t[k] <= 0 || i[k] >= TMDC_MAX_LENGTH) continue;
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t[k] = p;
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if (j[k] == 0) { /* Start bit */
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if (~v & 1) t[k] = 0;
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data[k][i[k]] = 0; j[k]++; continue;
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}
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if (j[k] == 9) { /* Stop bit */
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if (v & 1) t[k] = 0;
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j[k] = 0; i[k]++; continue;
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}
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data[k][i[k]] |= (~v & 1) << (j[k]++ - 1); /* Data bit */
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}
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t[k]--;
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}
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} while (t[0] > 0 || t[1] > 0);
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local_irq_restore(flags);
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return (i[0] == TMDC_MAX_LENGTH) | ((i[1] == TMDC_MAX_LENGTH) << 1);
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}
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static int tmdc_parse_packet(struct tmdc_port *port, unsigned char *data)
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{
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int i, k, l;
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if (data[TMDC_BYTE_ID] != port->mode)
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return -1;
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for (i = 0; i < port->absc; i++) {
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if (port->abs[i] < 0)
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return 0;
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input_report_abs(port->dev, port->abs[i], data[tmdc_byte_a[i]]);
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}
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switch (port->mode) {
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case TMDC_MODE_M3DI:
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i = tmdc_byte_d[0];
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input_report_abs(port->dev, ABS_HAT0X, ((data[i] >> 3) & 1) - ((data[i] >> 1) & 1));
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input_report_abs(port->dev, ABS_HAT0Y, ((data[i] >> 2) & 1) - ( data[i] & 1));
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break;
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case TMDC_MODE_AT:
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i = tmdc_byte_a[3];
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input_report_abs(port->dev, ABS_HAT0X, tmdc_hat_to_axis[(data[i] - 141) / 25].x);
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input_report_abs(port->dev, ABS_HAT0Y, tmdc_hat_to_axis[(data[i] - 141) / 25].y);
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break;
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}
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for (k = l = 0; k < 4; k++) {
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for (i = 0; i < port->btnc[k]; i++)
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input_report_key(port->dev, port->btn[i + l],
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((data[tmdc_byte_d[k]] >> (i + port->btno[k])) & 1));
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l += port->btnc[k];
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}
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input_sync(port->dev);
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return 0;
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}
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/*
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* tmdc_poll() reads and analyzes ThrustMaster joystick data.
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*/
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static void tmdc_poll(struct gameport *gameport)
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{
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unsigned char data[2][TMDC_MAX_LENGTH];
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struct tmdc *tmdc = gameport_get_drvdata(gameport);
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unsigned char r, bad = 0;
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int i;
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tmdc->reads++;
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if ((r = tmdc_read_packet(tmdc->gameport, data)) != tmdc->exists)
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bad = 1;
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else {
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for (i = 0; i < 2; i++) {
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if (r & (1 << i) & tmdc->exists) {
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if (tmdc_parse_packet(tmdc->port[i], data[i]))
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bad = 1;
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}
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}
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}
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tmdc->bads += bad;
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}
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static int tmdc_open(struct input_dev *dev)
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{
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struct tmdc *tmdc = input_get_drvdata(dev);
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gameport_start_polling(tmdc->gameport);
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return 0;
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}
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static void tmdc_close(struct input_dev *dev)
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{
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struct tmdc *tmdc = input_get_drvdata(dev);
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gameport_stop_polling(tmdc->gameport);
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}
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static int tmdc_setup_port(struct tmdc *tmdc, int idx, unsigned char *data)
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{
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const struct tmdc_model *model;
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struct tmdc_port *port;
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struct input_dev *input_dev;
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int i, j, b = 0;
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int err;
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tmdc->port[idx] = port = kzalloc(sizeof (struct tmdc_port), GFP_KERNEL);
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input_dev = input_allocate_device();
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if (!port || !input_dev) {
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err = -ENOMEM;
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goto fail;
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}
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port->mode = data[TMDC_BYTE_ID];
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for (model = tmdc_models; model->id && model->id != port->mode; model++)
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/* empty */;
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port->abs = model->axes;
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port->btn = model->buttons;
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if (!model->id) {
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port->absc = data[TMDC_BYTE_DEF] >> 4;
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for (i = 0; i < 4; i++)
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port->btnc[i] = i < (data[TMDC_BYTE_DEF] & 0xf) ? 8 : 0;
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} else {
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port->absc = model->abs;
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for (i = 0; i < 4; i++)
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port->btnc[i] = model->btnc[i];
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}
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for (i = 0; i < 4; i++)
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port->btno[i] = model->btno[i];
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snprintf(port->name, sizeof(port->name), model->name,
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port->absc, (data[TMDC_BYTE_DEF] & 0xf) << 3, port->mode);
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snprintf(port->phys, sizeof(port->phys), "%s/input%d", tmdc->gameport->phys, i);
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port->dev = input_dev;
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input_dev->name = port->name;
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input_dev->phys = port->phys;
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input_dev->id.bustype = BUS_GAMEPORT;
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input_dev->id.vendor = GAMEPORT_ID_VENDOR_THRUSTMASTER;
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input_dev->id.product = model->id;
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input_dev->id.version = 0x0100;
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input_dev->dev.parent = &tmdc->gameport->dev;
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input_set_drvdata(input_dev, tmdc);
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input_dev->open = tmdc_open;
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input_dev->close = tmdc_close;
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input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
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for (i = 0; i < port->absc && i < TMDC_ABS; i++)
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if (port->abs[i] >= 0)
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input_set_abs_params(input_dev, port->abs[i], 8, 248, 2, 4);
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for (i = 0; i < model->hats && i < TMDC_ABS_HAT; i++)
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input_set_abs_params(input_dev, tmdc_abs_hat[i], -1, 1, 0, 0);
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for (i = 0; i < 4; i++) {
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for (j = 0; j < port->btnc[i] && j < TMDC_BTN; j++)
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set_bit(port->btn[j + b], input_dev->keybit);
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b += port->btnc[i];
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}
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err = input_register_device(port->dev);
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if (err)
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goto fail;
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return 0;
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fail: input_free_device(input_dev);
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kfree(port);
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return err;
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}
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/*
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* tmdc_probe() probes for ThrustMaster type joysticks.
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*/
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static int tmdc_connect(struct gameport *gameport, struct gameport_driver *drv)
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{
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unsigned char data[2][TMDC_MAX_LENGTH];
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struct tmdc *tmdc;
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int i;
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int err;
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if (!(tmdc = kzalloc(sizeof(struct tmdc), GFP_KERNEL)))
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return -ENOMEM;
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tmdc->gameport = gameport;
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gameport_set_drvdata(gameport, tmdc);
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err = gameport_open(gameport, drv, GAMEPORT_MODE_RAW);
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if (err)
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goto fail1;
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if (!(tmdc->exists = tmdc_read_packet(gameport, data))) {
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err = -ENODEV;
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goto fail2;
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}
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gameport_set_poll_handler(gameport, tmdc_poll);
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gameport_set_poll_interval(gameport, 20);
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for (i = 0; i < 2; i++) {
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if (tmdc->exists & (1 << i)) {
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err = tmdc_setup_port(tmdc, i, data[i]);
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if (err)
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goto fail3;
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}
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}
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return 0;
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fail3: while (--i >= 0) {
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if (tmdc->port[i]) {
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input_unregister_device(tmdc->port[i]->dev);
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kfree(tmdc->port[i]);
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}
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}
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fail2: gameport_close(gameport);
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fail1: gameport_set_drvdata(gameport, NULL);
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kfree(tmdc);
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return err;
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}
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static void tmdc_disconnect(struct gameport *gameport)
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{
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struct tmdc *tmdc = gameport_get_drvdata(gameport);
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int i;
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for (i = 0; i < 2; i++) {
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if (tmdc->port[i]) {
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input_unregister_device(tmdc->port[i]->dev);
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kfree(tmdc->port[i]);
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}
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}
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gameport_close(gameport);
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gameport_set_drvdata(gameport, NULL);
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kfree(tmdc);
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}
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static struct gameport_driver tmdc_drv = {
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.driver = {
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.name = "tmdc",
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.owner = THIS_MODULE,
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},
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.description = DRIVER_DESC,
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.connect = tmdc_connect,
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.disconnect = tmdc_disconnect,
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};
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module_gameport_driver(tmdc_drv);
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