795750197f
Since we have a real device bound to a driver, we may use struct device for printing. Use dev_* functions instead of printks in 4 drivers. Signed-off-by: Jiri Slaby <jirislaby@gmail.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
117 lines
3.1 KiB
C
117 lines
3.1 KiB
C
/*
|
|
* Force feedback support for Logitech 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/usb.h>
|
|
#include <linux/hid.h>
|
|
|
|
#include "usbhid/usbhid.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;
|
|
}
|
|
|
|
usbhid_submit_report(hid, lg2ff->report, USB_DIR_OUT);
|
|
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 list_head *report_list =
|
|
&hid->report_enum[HID_OUTPUT_REPORT].report_list;
|
|
struct input_dev *dev = hidinput->input;
|
|
int error;
|
|
|
|
if (list_empty(report_list)) {
|
|
dev_err(&hid->dev, "no output report found\n");
|
|
return -ENODEV;
|
|
}
|
|
|
|
report = list_entry(report_list->next, struct hid_report, list);
|
|
|
|
if (report->maxfield < 1) {
|
|
dev_err(&hid->dev, "output report is empty\n");
|
|
return -ENODEV;
|
|
}
|
|
if (report->field[0]->report_count < 7) {
|
|
dev_err(&hid->dev, "not enough values in the field\n");
|
|
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;
|
|
|
|
usbhid_submit_report(hid, report, USB_DIR_OUT);
|
|
|
|
dev_info(&hid->dev, "Force feedback for Logitech Rumblepad 2 by "
|
|
"Anssi Hannula <anssi.hannula@gmail.com>\n");
|
|
|
|
return 0;
|
|
}
|