- 根目录:
- drivers
- input
- joystick
- tmdc.c
/*
* Copyright (c) 1998-2001 Vojtech Pavlik
*
* 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@ucw.cz>, or by paper mail:
* Vojtech Pavlik, Simunkova 1594, 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>
#include <linux/jiffies.h>
#define DRIVER_DESC "ThrustMaster DirectConnect joystick driver"
MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
MODULE_DESCRIPTION(DRIVER_DESC);
MODULE_LICENSE("GPL");
#define TMDC_MAX_START 600 /* 600 us */
#define TMDC_MAX_STROBE 60 /* 60 us */
#define TMDC_MAX_LENGTH 13
#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 const unsigned char tmdc_byte_a[16] = { 0, 1, 3, 4, 6, 7 };
static const unsigned char tmdc_byte_d[16] = { 2, 5, 8, 9 };
static const signed char tmdc_abs[TMDC_ABS] =
{ ABS_X, ABS_Y, ABS_RUDDER, ABS_THROTTLE, ABS_RX, ABS_RY, ABS_RZ };
static const signed char tmdc_abs_hat[TMDC_ABS_HAT] =
{ ABS_HAT0X, ABS_HAT0Y, ABS_HAT1X, ABS_HAT1Y };
static const signed char tmdc_abs_at[TMDC_ABS] =
{ ABS_X, ABS_Y, ABS_RUDDER, -1, ABS_THROTTLE };
static const signed char tmdc_abs_fm[TMDC_ABS] =
{ ABS_RX, ABS_RY, ABS_X, ABS_Y };
static const 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 const 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 const 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 const 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 const struct {
int x;
int y;
} tmdc_hat_to_axis[] = {{ 0, 0}, { 1, 0}, { 0,-1}, {-1, 0}, { 0, 1}};
static const struct tmdc_model {
unsigned char id;
const char *name;
char abs;
char hats;
char btnc[4];
char btno[4];
const signed char *axes;
const short *buttons;
} tmdc_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 }
};
struct tmdc_port {
struct input_dev *dev;
char name[64];
char phys[32];
int mode;
const signed char *abs;
const short *btn;
unsigned char absc;
unsigned char btnc[4];
unsigned char btno[4];
};
struct tmdc {
struct gameport *gameport;
struct tmdc_port *port[2];
#if 0
struct input_dev *dev[2];
char name[2][64];
char phys[2][32];
int mode[2];
signed char *abs[2];
short *btn[2];
unsigned char absc[2];
unsigned char btnc[2][4];
unsigned char btno[2][4];
#endif
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;
}
local_irq_save(flags);
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);
local_irq_restore(flags);
return (i[0] == TMDC_MAX_LENGTH) | ((i[1] == TMDC_MAX_LENGTH) << 1);
}
static int tmdc_parse_packet(struct tmdc_port *port, unsigned char *data)
{
int i, k, l;
if (data[TMDC_BYTE_ID] != port->mode)
return -1;
for (i = 0; i < port->absc; i++) {
if (port->abs[i] < 0)
return 0;
input_report_abs(port->dev, port->abs[i], data[tmdc_byte_a[i]]);
}
switch (port->mode) {
case TMDC_MODE_M3DI:
i = tmdc_byte_d[0];
input_report_abs(port->dev, ABS_HAT0X, ((data[i] >> 3) & 1) - ((data[i] >> 1) & 1));
input_report_abs(port->dev, ABS_HAT0Y, ((data[i] >> 2) & 1) - ( data[i] & 1));
break;
case TMDC_MODE_AT:
i = tmdc_byte_a[3];
input_report_abs(port->dev, ABS_HAT0X, tmdc_hat_to_axis[(data[i] - 141) / 25].x);
input_report_abs(port->dev, ABS_HAT0Y, tmdc_hat_to_axis[(data[i] - 141) / 25].y);
break;
}
for (k = l = 0; k < 4; k++) {
for (i = 0; i < port->btnc[k]; i++)
input_report_key(port->dev, port->btn[i + l],
((data[tmdc_byte_d[k]] >> (i + port->btno[k])) & 1));
l += port->btnc[k];
}
input_sync(port->dev);
return 0;
}
/*
* tmdc_poll() reads and analyzes ThrustMaster joystick data.
*/
static void tmdc_poll(struct gameport *gameport)
{
unsigned char data[2][TMDC_MAX_LENGTH];
struct tmdc *tmdc = gameport_get_drvdata(gameport);
unsigned char r, bad = 0;
int i;
tmdc->reads++;
if ((r = tmdc_read_packet(tmdc->gameport, data)) != tmdc->exists)
bad = 1;
else {
for (i = 0; i < 2; i++) {
if (r & (1 << i) & tmdc->exists) {
if (tmdc_parse_packet(tmdc->port[i], data[i]))
bad = 1;
}
}
}
tmdc->bads += bad;
}
static int tmdc_open(struct input_dev *dev)
{
struct tmdc *tmdc = input_get_drvdata(dev);
gameport_start_polling(tmdc->gameport);
return 0;
}
static void tmdc_close(struct input_dev *dev)
{
struct tmdc *tmdc = input_get_drvdata(dev);
gameport_stop_polling(tmdc->gameport);
}
static int tmdc_setup_port(struct tmdc *tmdc, int idx, unsigned char *data)
{
const struct tmdc_model *model;
struct tmdc_port *port;
struct input_dev *input_dev;
int i, j, b = 0;
int err;
tmdc->port[idx] = port = kzalloc(sizeof (struct tmdc_port), GFP_KERNEL);
input_dev = input_allocate_device();
if (!port || !input_dev) {
err = -ENOMEM;
goto fail;
}
port->mode = data[TMDC_BYTE_ID];
for (model = tmdc_models; model->id && model->id != port->mode; model++)
/* empty */;
port->abs = model->axes;
port->btn = model->buttons;
if (!model->id) {
port->absc = data[TMDC_BYTE_DEF] >> 4;
for (i = 0; i < 4; i++)
port->btnc[i] = i < (data[TMDC_BYTE_DEF] & 0xf) ? 8 : 0;
} else {
port->absc = model->abs;
for (i = 0; i < 4; i++)
port->btnc[i] = model->btnc[i];
}
for (i = 0; i < 4; i++)
port->btno[i] = model->btno[i];
snprintf(port->name, sizeof(port->name), model->name,
port->absc, (data[TMDC_BYTE_DEF] & 0xf) << 3, port->mode);
snprintf(port->phys, sizeof(port->phys), "%s/input%d", tmdc->gameport->phys, i);
port->dev = input_dev;
input_dev->name = port->name;
input_dev->phys = port->phys;
input_dev->id.bustype = BUS_GAMEPORT;
input_dev->id.vendor = GAMEPORT_ID_VENDOR_THRUSTMASTER;
input_dev->id.product = model->id;
input_dev->id.version = 0x0100;
input_dev->dev.parent = &tmdc->gameport->dev;
input_set_drvdata(input_dev, tmdc);
input_dev->open = tmdc_open;
input_dev->close = tmdc_close;
input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
for (i = 0; i < port->absc && i < TMDC_ABS; i++)
if (port->abs[i] >= 0)
input_set_abs_params(input_dev, port->abs[i], 8, 248, 2, 4);
for (i = 0; i < model->hats && i < TMDC_ABS_HAT; i++)
input_set_abs_params(input_dev, tmdc_abs_hat[i], -1, 1, 0, 0);
for (i = 0; i < 4; i++) {
for (j = 0; j < port->btnc[i] && j < TMDC_BTN; j++)
set_bit(port->btn[j + b], input_dev->keybit);
b += port->btnc[i];
}
err = input_register_device(port->dev);
if (err)
goto fail;
return 0;
fail: input_free_device(input_dev);
kfree(port);
return err;
}
/*
* tmdc_probe() probes for ThrustMaster type joysticks.
*/
static int tmdc_connect(struct gameport *gameport, struct gameport_driver *drv)
{
unsigned char data[2][TMDC_MAX_LENGTH];
struct tmdc *tmdc;
int i;
int err;
if (!(tmdc = kzalloc(sizeof(struct tmdc), GFP_KERNEL)))
return -ENOMEM;
tmdc->gameport = gameport;
gameport_set_drvdata(gameport, tmdc);
err = gameport_open(gameport, drv, GAMEPORT_MODE_RAW);
if (err)
goto fail1;
if (!(tmdc->exists = tmdc_read_packet(gameport, data))) {
err = -ENODEV;
goto fail2;
}
gameport_set_poll_handler(gameport, tmdc_poll);
gameport_set_poll_interval(gameport, 20);
for (i = 0; i < 2; i++) {
if (tmdc->exists & (1 << i)) {
err = tmdc_setup_port(tmdc, i, data[i]);
if (err)
goto fail3;
}
}
return 0;
fail3: while (--i >= 0) {
if (tmdc->port[i]) {
input_unregister_device(tmdc->port[i]->dev);
kfree(tmdc->port[i]);
}
}
fail2: gameport_close(gameport);
fail1: gameport_set_drvdata(gameport, NULL);
kfree(tmdc);
return err;
}
static void tmdc_disconnect(struct gameport *gameport)
{
struct tmdc *tmdc = gameport_get_drvdata(gameport);
int i;
for (i = 0; i < 2; i++) {
if (tmdc->port[i]) {
input_unregister_device(tmdc->port[i]->dev);
kfree(tmdc->port[i]);
}
}
gameport_close(gameport);
gameport_set_drvdata(gameport, NULL);
kfree(tmdc);
}
static struct gameport_driver tmdc_drv = {
.driver = {
.name = "tmdc",
.owner = THIS_MODULE,
},
.description = DRIVER_DESC,
.connect = tmdc_connect,
.disconnect = tmdc_disconnect,
};
static int __init tmdc_init(void)
{
return gameport_register_driver(&tmdc_drv);
}
static void __exit tmdc_exit(void)
{
gameport_unregister_driver(&tmdc_drv);
}
module_init(tmdc_init);
module_exit(tmdc_exit);