102 lines
2.7 KiB
C
102 lines
2.7 KiB
C
/*
|
|
* Force feedback support for Logitech RumblePad and Rumblepad 2
|
|
*
|
|
* Copyright (c) 2008 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
|
|
*/
|
|
|
|
|
|
#include <linux/input.h>
|
|
#include <linux/slab.h>
|
|
#include <linux/hid.h>
|
|
|
|
#include "hid-lg.h"
|
|
|
|
struct lg2ff_device {
|
|
struct hid_report *report;
|
|
};
|
|
|
|
static int play_effect(struct input_dev *dev, void *data,
|
|
struct ff_effect *effect)
|
|
{
|
|
struct hid_device *hid = input_get_drvdata(dev);
|
|
struct lg2ff_device *lg2ff = data;
|
|
int weak, strong;
|
|
|
|
strong = effect->u.rumble.strong_magnitude;
|
|
weak = effect->u.rumble.weak_magnitude;
|
|
|
|
if (weak || strong) {
|
|
weak = weak * 0xff / 0xffff;
|
|
strong = strong * 0xff / 0xffff;
|
|
|
|
lg2ff->report->field[0]->value[0] = 0x51;
|
|
lg2ff->report->field[0]->value[2] = weak;
|
|
lg2ff->report->field[0]->value[4] = strong;
|
|
} else {
|
|
lg2ff->report->field[0]->value[0] = 0xf3;
|
|
lg2ff->report->field[0]->value[2] = 0x00;
|
|
lg2ff->report->field[0]->value[4] = 0x00;
|
|
}
|
|
|
|
hid_hw_request(hid, lg2ff->report, HID_REQ_SET_REPORT);
|
|
return 0;
|
|
}
|
|
|
|
int lg2ff_init(struct hid_device *hid)
|
|
{
|
|
struct lg2ff_device *lg2ff;
|
|
struct hid_report *report;
|
|
struct hid_input *hidinput = list_entry(hid->inputs.next,
|
|
struct hid_input, list);
|
|
struct input_dev *dev = hidinput->input;
|
|
int error;
|
|
|
|
/* Check that the report looks ok */
|
|
report = hid_validate_values(hid, HID_OUTPUT_REPORT, 0, 0, 7);
|
|
if (!report)
|
|
return -ENODEV;
|
|
|
|
lg2ff = kmalloc(sizeof(struct lg2ff_device), GFP_KERNEL);
|
|
if (!lg2ff)
|
|
return -ENOMEM;
|
|
|
|
set_bit(FF_RUMBLE, dev->ffbit);
|
|
|
|
error = input_ff_create_memless(dev, lg2ff, play_effect);
|
|
if (error) {
|
|
kfree(lg2ff);
|
|
return error;
|
|
}
|
|
|
|
lg2ff->report = report;
|
|
report->field[0]->value[0] = 0xf3;
|
|
report->field[0]->value[1] = 0x00;
|
|
report->field[0]->value[2] = 0x00;
|
|
report->field[0]->value[3] = 0x00;
|
|
report->field[0]->value[4] = 0x00;
|
|
report->field[0]->value[5] = 0x00;
|
|
report->field[0]->value[6] = 0x00;
|
|
|
|
hid_hw_request(hid, report, HID_REQ_SET_REPORT);
|
|
|
|
hid_info(hid, "Force feedback for Logitech RumblePad/Rumblepad 2 by Anssi Hannula <anssi.hannula@gmail.com>\n");
|
|
|
|
return 0;
|
|
}
|