00a8691ca6
By default threat devices as joysticks with constant force-feedback effect. Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
150 lines
4 KiB
C
150 lines
4 KiB
C
/*
|
|
* Force feedback support for hid-compliant for some of the devices from
|
|
* Logitech, namely:
|
|
* - WingMan Cordless RumblePad
|
|
* - WingMan Force 3D
|
|
*
|
|
* Copyright (c) 2002-2004 Johann Deneux
|
|
* Copyright (c) 2006 Anssi Hannula <anssi.hannula@gmail.com>
|
|
*/
|
|
|
|
/*
|
|
* 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 by
|
|
* e-mail - mail your message to <johann.deneux@it.uu.se>
|
|
*/
|
|
|
|
#include <linux/input.h>
|
|
#include <linux/usb.h>
|
|
#include <linux/hid.h>
|
|
#include "usbhid.h"
|
|
|
|
struct dev_type {
|
|
u16 idVendor;
|
|
u16 idProduct;
|
|
const signed short *ff;
|
|
};
|
|
|
|
static const signed short ff_rumble[] = {
|
|
FF_RUMBLE,
|
|
-1
|
|
};
|
|
|
|
static const signed short ff_joystick[] = {
|
|
FF_CONSTANT,
|
|
-1
|
|
};
|
|
|
|
static const struct dev_type devices[] = {
|
|
{ 0x046d, 0xc211, ff_rumble },
|
|
{ 0x046d, 0xc219, ff_rumble },
|
|
{ 0x046d, 0xc283, ff_joystick },
|
|
{ 0x046d, 0xc294, ff_joystick },
|
|
{ 0x046d, 0xc295, ff_joystick },
|
|
{ 0x046d, 0xca03, ff_joystick },
|
|
};
|
|
|
|
static int hid_lgff_play(struct input_dev *dev, void *data, struct ff_effect *effect)
|
|
{
|
|
struct hid_device *hid = dev->private;
|
|
struct list_head *report_list = &hid->report_enum[HID_OUTPUT_REPORT].report_list;
|
|
struct hid_report *report = list_entry(report_list->next, struct hid_report, list);
|
|
int x, y;
|
|
unsigned int left, right;
|
|
|
|
#define CLAMP(x) if (x < 0) x = 0; if (x > 0xff) x = 0xff
|
|
|
|
switch (effect->type) {
|
|
case FF_CONSTANT:
|
|
x = effect->u.ramp.start_level + 0x7f; /* 0x7f is center */
|
|
y = effect->u.ramp.end_level + 0x7f;
|
|
CLAMP(x);
|
|
CLAMP(y);
|
|
report->field[0]->value[0] = 0x51;
|
|
report->field[0]->value[1] = 0x08;
|
|
report->field[0]->value[2] = x;
|
|
report->field[0]->value[3] = y;
|
|
dbg("(x, y)=(%04x, %04x)", x, y);
|
|
usbhid_submit_report(hid, report, USB_DIR_OUT);
|
|
break;
|
|
|
|
case FF_RUMBLE:
|
|
right = effect->u.rumble.strong_magnitude;
|
|
left = effect->u.rumble.weak_magnitude;
|
|
right = right * 0xff / 0xffff;
|
|
left = left * 0xff / 0xffff;
|
|
CLAMP(left);
|
|
CLAMP(right);
|
|
report->field[0]->value[0] = 0x42;
|
|
report->field[0]->value[1] = 0x00;
|
|
report->field[0]->value[2] = left;
|
|
report->field[0]->value[3] = right;
|
|
dbg("(left, right)=(%04x, %04x)", left, right);
|
|
usbhid_submit_report(hid, report, USB_DIR_OUT);
|
|
break;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
int hid_lgff_init(struct hid_device* hid)
|
|
{
|
|
struct hid_input *hidinput = list_entry(hid->inputs.next, struct hid_input, list);
|
|
struct list_head *report_list = &hid->report_enum[HID_OUTPUT_REPORT].report_list;
|
|
struct input_dev *dev = hidinput->input;
|
|
struct hid_report *report;
|
|
struct hid_field *field;
|
|
const signed short *ff_bits = ff_joystick;
|
|
int error;
|
|
int i;
|
|
|
|
/* Find the report to use */
|
|
if (list_empty(report_list)) {
|
|
err("No output report found");
|
|
return -1;
|
|
}
|
|
|
|
/* Check that the report looks ok */
|
|
report = list_entry(report_list->next, struct hid_report, list);
|
|
if (!report) {
|
|
err("NULL output report");
|
|
return -1;
|
|
}
|
|
|
|
field = report->field[0];
|
|
if (!field) {
|
|
err("NULL field");
|
|
return -1;
|
|
}
|
|
|
|
for (i = 0; i < ARRAY_SIZE(devices); i++) {
|
|
if (dev->id.vendor == devices[i].idVendor &&
|
|
dev->id.product == devices[i].idProduct) {
|
|
ff_bits = devices[i].ff;
|
|
break;
|
|
}
|
|
}
|
|
|
|
for (i = 0; ff_bits[i] >= 0; i++)
|
|
set_bit(ff_bits[i], dev->ffbit);
|
|
|
|
error = input_ff_create_memless(dev, NULL, hid_lgff_play);
|
|
if (error)
|
|
return error;
|
|
|
|
printk(KERN_INFO "Force feedback for Logitech force feedback devices by Johann Deneux <johann.deneux@it.uu.se>\n");
|
|
|
|
return 0;
|
|
}
|