/*
* Force feedback support for SmartJoy PLUS PS2->USB adapter
*
* Copyright (c) 2009 Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
*
* Based of hid-pl.c and hid-gaff.c
* Copyright (c) 2007, 2009 Anssi Hannula <anssi.hannula@gmail.com>
* Copyright (c) 2008 Lukasz Lubojanski <lukasz@lubojanski.info>
*/
/*
* 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
*/
/* #define DEBUG */
#include <linux/input.h>
#include <linux/slab.h>
#include <linux/usb.h>
#include <linux/hid.h>
#include "hid-ids.h"
#ifdef CONFIG_SMARTJOYPLUS_FF
#include "usbhid/usbhid.h"
struct sjoyff_device {
struct hid_report *report;
};
static int hid_sjoyff_play(struct input_dev *dev, void *data,
struct ff_effect *effect)
{
struct hid_device *hid = input_get_drvdata(dev);
struct sjoyff_device *sjoyff = data;
u32 left, right;
left = effect->u.rumble.strong_magnitude;
right = effect->u.rumble.weak_magnitude;
dev_dbg(&dev->dev, "called with 0x%08x 0x%08x\n", left, right);
left = left * 0xff / 0xffff;
right = (right != 0); /* on/off only */
sjoyff->report->field[0]->value[1] = right;
sjoyff->report->field[0]->value[2] = left;
dev_dbg(&dev->dev, "running with 0x%02x 0x%02x\n", left, right);
usbhid_submit_report(hid, sjoyff->report, USB_DIR_OUT);
return 0;
}
static int sjoyff_init(struct hid_device *hid)
{
struct sjoyff_device *sjoyff;
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 list_head *report_ptr = report_list;
struct input_dev *dev;
int error;
if (list_empty(report_list)) {
dev_err(&hid->dev, "no output reports found\n");
return -ENODEV;
}
report_ptr = report_ptr->next;
if (report_ptr == report_list) {
dev_err(&hid->dev, "required output report is "
"missing\n");
return -ENODEV;
}
report = list_entry(report_ptr, struct hid_report, list);
if (report->maxfield < 1) {
dev_err(&hid->dev, "no fields in the report\n");
return -ENODEV;
}
if (report->field[0]->report_count < 3) {
dev_err(&hid->dev, "not enough values in the field\n");
return -ENODEV;
}
sjoyff = kzalloc(sizeof(struct sjoyff_device), GFP_KERNEL);
if (!sjoyff)
return -ENOMEM;
dev = hidinput->input;
set_bit(FF_RUMBLE, dev->ffbit);
error = input_ff_create_memless(dev, sjoyff, hid_sjoyff_play);
if (error) {
kfree(sjoyff);
return error;
}
sjoyff->report = report;
sjoyff->report->field[0]->value[0] = 0x01;
sjoyff->report->field[0]->value[1] = 0x00;
sjoyff->report->field[0]->value[2] = 0x00;
usbhid_submit_report(hid, sjoyff->report, USB_DIR_OUT);
dev_info(&hid->dev,
"Force feedback for SmartJoy PLUS PS2/USB adapter\n");
return 0;
}
#else
static inline int sjoyff_init(struct hid_device *hid)
{
return 0;
}
#endif
static int sjoy_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;
}
sjoyff_init(hdev);
return 0;
err:
return ret;
}
static const struct hid_device_id sjoy_devices[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_SMARTJOY_PLUS) },
{ }
};
MODULE_DEVICE_TABLE(hid, sjoy_devices);
static struct hid_driver sjoy_driver = {
.name = "smartjoyplus",
.id_table = sjoy_devices,
.probe = sjoy_probe,
};
static int __init sjoy_init(void)
{
return hid_register_driver(&sjoy_driver);
}
static void __exit sjoy_exit(void)
{
hid_unregister_driver(&sjoy_driver);
}
module_init(sjoy_init);
module_exit(sjoy_exit);
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Jussi Kivilinna");
