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Jussi Kivilinnafac733f2009-05-13 11:54:38 +03001/*
2 * Force feedback support for SmartJoy PLUS PS2->USB adapter
3 *
4 * Copyright (c) 2009 Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
5 *
6 * Based of hid-pl.c and hid-gaff.c
7 * Copyright (c) 2007, 2009 Anssi Hannula <anssi.hannula@gmail.com>
8 * Copyright (c) 2008 Lukasz Lubojanski <lukasz@lubojanski.info>
9 */
10
11/*
12 * This program is free software; you can redistribute it and/or modify
13 * it under the terms of the GNU General Public License as published by
14 * the Free Software Foundation; either version 2 of the License, or
15 * (at your option) any later version.
16 *
17 * This program is distributed in the hope that it will be useful,
18 * but WITHOUT ANY WARRANTY; without even the implied warranty of
19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 * GNU General Public License for more details.
21 *
22 * You should have received a copy of the GNU General Public License
23 * along with this program; if not, write to the Free Software
24 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
25 */
26
27/* #define DEBUG */
28
29#include <linux/input.h>
Tejun Heo5a0e3ad2010-03-24 17:04:11 +090030#include <linux/slab.h>
Jussi Kivilinnafac733f2009-05-13 11:54:38 +030031#include <linux/usb.h>
32#include <linux/hid.h>
33#include "hid-ids.h"
34
35#ifdef CONFIG_SMARTJOYPLUS_FF
36#include "usbhid/usbhid.h"
37
38struct sjoyff_device {
39 struct hid_report *report;
40};
41
42static int hid_sjoyff_play(struct input_dev *dev, void *data,
43 struct ff_effect *effect)
44{
45 struct hid_device *hid = input_get_drvdata(dev);
46 struct sjoyff_device *sjoyff = data;
47 u32 left, right;
48
49 left = effect->u.rumble.strong_magnitude;
50 right = effect->u.rumble.weak_magnitude;
51 dev_dbg(&dev->dev, "called with 0x%08x 0x%08x\n", left, right);
52
53 left = left * 0xff / 0xffff;
54 right = (right != 0); /* on/off only */
55
56 sjoyff->report->field[0]->value[1] = right;
57 sjoyff->report->field[0]->value[2] = left;
58 dev_dbg(&dev->dev, "running with 0x%02x 0x%02x\n", left, right);
59 usbhid_submit_report(hid, sjoyff->report, USB_DIR_OUT);
60
61 return 0;
62}
63
64static int sjoyff_init(struct hid_device *hid)
65{
66 struct sjoyff_device *sjoyff;
67 struct hid_report *report;
68 struct hid_input *hidinput = list_entry(hid->inputs.next,
69 struct hid_input, list);
70 struct list_head *report_list =
71 &hid->report_enum[HID_OUTPUT_REPORT].report_list;
72 struct list_head *report_ptr = report_list;
73 struct input_dev *dev;
74 int error;
75
76 if (list_empty(report_list)) {
77 dev_err(&hid->dev, "no output reports found\n");
78 return -ENODEV;
79 }
80
81 report_ptr = report_ptr->next;
82
83 if (report_ptr == report_list) {
84 dev_err(&hid->dev, "required output report is "
85 "missing\n");
86 return -ENODEV;
87 }
88
89 report = list_entry(report_ptr, struct hid_report, list);
90 if (report->maxfield < 1) {
91 dev_err(&hid->dev, "no fields in the report\n");
92 return -ENODEV;
93 }
94
95 if (report->field[0]->report_count < 3) {
96 dev_err(&hid->dev, "not enough values in the field\n");
97 return -ENODEV;
98 }
99
100 sjoyff = kzalloc(sizeof(struct sjoyff_device), GFP_KERNEL);
101 if (!sjoyff)
102 return -ENOMEM;
103
104 dev = hidinput->input;
105
106 set_bit(FF_RUMBLE, dev->ffbit);
107
108 error = input_ff_create_memless(dev, sjoyff, hid_sjoyff_play);
109 if (error) {
110 kfree(sjoyff);
111 return error;
112 }
113
114 sjoyff->report = report;
115 sjoyff->report->field[0]->value[0] = 0x01;
116 sjoyff->report->field[0]->value[1] = 0x00;
117 sjoyff->report->field[0]->value[2] = 0x00;
118 usbhid_submit_report(hid, sjoyff->report, USB_DIR_OUT);
119
120 dev_info(&hid->dev,
121 "Force feedback for SmartJoy PLUS PS2/USB adapter\n");
122
123 return 0;
124}
125#else
126static inline int sjoyff_init(struct hid_device *hid)
127{
128 return 0;
129}
130#endif
131
132static int sjoy_probe(struct hid_device *hdev, const struct hid_device_id *id)
133{
134 int ret;
135
136 ret = hid_parse(hdev);
137 if (ret) {
138 dev_err(&hdev->dev, "parse failed\n");
139 goto err;
140 }
141
142 ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT & ~HID_CONNECT_FF);
143 if (ret) {
144 dev_err(&hdev->dev, "hw start failed\n");
145 goto err;
146 }
147
148 sjoyff_init(hdev);
149
150 return 0;
151err:
152 return ret;
153}
154
155static const struct hid_device_id sjoy_devices[] = {
156 { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_SMARTJOY_PLUS) },
157 { }
158};
159MODULE_DEVICE_TABLE(hid, sjoy_devices);
160
161static struct hid_driver sjoy_driver = {
162 .name = "smartjoyplus",
163 .id_table = sjoy_devices,
164 .probe = sjoy_probe,
165};
166
Peter Huewea24f423b2009-07-02 19:08:38 +0200167static int __init sjoy_init(void)
Jussi Kivilinnafac733f2009-05-13 11:54:38 +0300168{
169 return hid_register_driver(&sjoy_driver);
170}
171
Peter Huewea24f423b2009-07-02 19:08:38 +0200172static void __exit sjoy_exit(void)
Jussi Kivilinnafac733f2009-05-13 11:54:38 +0300173{
174 hid_unregister_driver(&sjoy_driver);
175}
176
177module_init(sjoy_init);
178module_exit(sjoy_exit);
179MODULE_LICENSE("GPL");
180MODULE_AUTHOR("Jussi Kivilinna");
181