168 lines
4.0 KiB
C
168 lines
4.0 KiB
C
/*
|
|
* Force feedback support for Zeroplus based devices
|
|
*
|
|
* Copyright (c) 2005, 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
|
|
*/
|
|
|
|
|
|
#include <linux/hid.h>
|
|
#include <linux/input.h>
|
|
#include <linux/usb.h>
|
|
|
|
#include "hid-ids.h"
|
|
|
|
#ifdef CONFIG_ZEROPLUS_FF
|
|
#include "usbhid/usbhid.h"
|
|
|
|
struct zpff_device {
|
|
struct hid_report *report;
|
|
};
|
|
|
|
static int zpff_play(struct input_dev *dev, void *data,
|
|
struct ff_effect *effect)
|
|
{
|
|
struct hid_device *hid = input_get_drvdata(dev);
|
|
struct zpff_device *zpff = data;
|
|
int left, right;
|
|
|
|
/*
|
|
* The following is specified the other way around in the Zeroplus
|
|
* datasheet but the order below is correct for the XFX Executioner;
|
|
* however it is possible that the XFX Executioner is an exception
|
|
*/
|
|
|
|
left = effect->u.rumble.strong_magnitude;
|
|
right = effect->u.rumble.weak_magnitude;
|
|
dbg_hid("called with 0x%04x 0x%04x\n", left, right);
|
|
|
|
left = left * 0x7f / 0xffff;
|
|
right = right * 0x7f / 0xffff;
|
|
|
|
zpff->report->field[2]->value[0] = left;
|
|
zpff->report->field[3]->value[0] = right;
|
|
dbg_hid("running with 0x%02x 0x%02x\n", left, right);
|
|
usbhid_submit_report(hid, zpff->report, USB_DIR_OUT);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int zpff_init(struct hid_device *hid)
|
|
{
|
|
struct zpff_device *zpff;
|
|
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 < 4) {
|
|
dev_err(&hid->dev, "not enough fields in report\n");
|
|
return -ENODEV;
|
|
}
|
|
|
|
zpff = kzalloc(sizeof(struct zpff_device), GFP_KERNEL);
|
|
if (!zpff)
|
|
return -ENOMEM;
|
|
|
|
set_bit(FF_RUMBLE, dev->ffbit);
|
|
|
|
error = input_ff_create_memless(dev, zpff, zpff_play);
|
|
if (error) {
|
|
kfree(zpff);
|
|
return error;
|
|
}
|
|
|
|
zpff->report = report;
|
|
zpff->report->field[0]->value[0] = 0x00;
|
|
zpff->report->field[1]->value[0] = 0x02;
|
|
zpff->report->field[2]->value[0] = 0x00;
|
|
zpff->report->field[3]->value[0] = 0x00;
|
|
usbhid_submit_report(hid, zpff->report, USB_DIR_OUT);
|
|
|
|
dev_info(&hid->dev, "force feedback for Zeroplus based devices by "
|
|
"Anssi Hannula <anssi.hannula@gmail.com>\n");
|
|
|
|
return 0;
|
|
}
|
|
#else
|
|
static inline int zpff_init(struct hid_device *hid)
|
|
{
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
static int zp_probe(struct hid_device *hdev, const struct hid_device_id *id)
|
|
{
|
|
int ret;
|
|
|
|
ret = hid_parse(hdev);
|
|
if (ret) {
|
|
dev_err(&hdev->dev, "parse failed\n");
|
|
goto err;
|
|
}
|
|
|
|
ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT & ~HID_CONNECT_FF);
|
|
if (ret) {
|
|
dev_err(&hdev->dev, "hw start failed\n");
|
|
goto err;
|
|
}
|
|
|
|
zpff_init(hdev);
|
|
|
|
return 0;
|
|
err:
|
|
return ret;
|
|
}
|
|
|
|
static const struct hid_device_id zp_devices[] = {
|
|
{ HID_USB_DEVICE(USB_VENDOR_ID_ZEROPLUS, 0x0005) },
|
|
{ HID_USB_DEVICE(USB_VENDOR_ID_ZEROPLUS, 0x0030) },
|
|
{ }
|
|
};
|
|
MODULE_DEVICE_TABLE(hid, zp_devices);
|
|
|
|
static struct hid_driver zp_driver = {
|
|
.name = "zeroplus",
|
|
.id_table = zp_devices,
|
|
.probe = zp_probe,
|
|
};
|
|
|
|
static int __init zp_init(void)
|
|
{
|
|
return hid_register_driver(&zp_driver);
|
|
}
|
|
|
|
static void __exit zp_exit(void)
|
|
{
|
|
hid_unregister_driver(&zp_driver);
|
|
}
|
|
|
|
module_init(zp_init);
|
|
module_exit(zp_exit);
|
|
MODULE_LICENSE("GPL");
|