1 /*
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>
30 #include <linux/usb.h>
31 #include <linux/hid.h>
32 #include "hid-ids.h"
33
34 #ifdef CONFIG_SMARTJOYPLUS_FF
35 #include "usbhid/usbhid.h"
36
37 struct sjoyff_device {
38 struct hid_report *report;
39 };
40
41 static int hid_sjoyff_play(struct input_dev *dev, void *data,
42 struct ff_effect *effect)
43 {
44 struct hid_device *hid = input_get_drvdata(dev);
45 struct sjoyff_device *sjoyff = data;
46 u32 left, right;
47
48 left = effect->u.rumble.strong_magnitude;
49 right = effect->u.rumble.weak_magnitude;
50 dev_dbg(&dev->dev, "called with 0x%08x 0x%08x\n", left, right);
51
52 left = left * 0xff / 0xffff;
53 right = (right != 0); /* on/off only */
54
55 sjoyff->report->field[0]->value[1] = right;
56 sjoyff->report->field[0]->value[2] = left;
57 dev_dbg(&dev->dev, "running with 0x%02x 0x%02x\n", left, right);
58 usbhid_submit_report(hid, sjoyff->report, USB_DIR_OUT);
59
60 return 0;
61 }
62
63 static int sjoyff_init(struct hid_device *hid)
64 {
65 struct sjoyff_device *sjoyff;
66 struct hid_report *report;
67 struct hid_input *hidinput = list_entry(hid->inputs.next,
68 struct hid_input, list);
69 struct list_head *report_list =
70 &hid->report_enum[HID_OUTPUT_REPORT].report_list;
71 struct list_head *report_ptr = report_list;
72 struct input_dev *dev;
73 int error;
74
75 if (list_empty(report_list)) {
76 dev_err(&hid->dev, "no output reports found\n");
77 return -ENODEV;
78 }
79
80 report_ptr = report_ptr->next;
81
82 if (report_ptr == report_list) {
83 dev_err(&hid->dev, "required output report is "
84 "missing\n");
85 return -ENODEV;
86 }
87
88 report = list_entry(report_ptr, struct hid_report, list);
89 if (report->maxfield < 1) {
90 dev_err(&hid->dev, "no fields in the report\n");
91 return -ENODEV;
92 }
93
94 if (report->field[0]->report_count < 3) {
95 dev_err(&hid->dev, "not enough values in the field\n");
96 return -ENODEV;
97 }
98
99 sjoyff = kzalloc(sizeof(struct sjoyff_device), GFP_KERNEL);
100 if (!sjoyff)
101 return -ENOMEM;
102
103 dev = hidinput->input;
104
105 set_bit(FF_RUMBLE, dev->ffbit);
106
107 error = input_ff_create_memless(dev, sjoyff, hid_sjoyff_play);
108 if (error) {
109 kfree(sjoyff);
110 return error;
111 }
112
113 sjoyff->report = report;
114 sjoyff->report->field[0]->value[0] = 0x01;
115 sjoyff->report->field[0]->value[1] = 0x00;
116 sjoyff->report->field[0]->value[2] = 0x00;
117 usbhid_submit_report(hid, sjoyff->report, USB_DIR_OUT);
118
119 dev_info(&hid->dev,
120 "Force feedback for SmartJoy PLUS PS2/USB adapter\n");
121
122 return 0;
123 }
124 #else
125 static inline int sjoyff_init(struct hid_device *hid)
126 {
127 return 0;
128 }
129 #endif
130
131 static int sjoy_probe(struct hid_device *hdev, const struct hid_device_id *id)
132 {
133 int ret;
134
135 ret = hid_parse(hdev);
136 if (ret) {
137 dev_err(&hdev->dev, "parse failed\n");
138 goto err;
139 }
140
141 ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT & ~HID_CONNECT_FF);
142 if (ret) {
143 dev_err(&hdev->dev, "hw start failed\n");
144 goto err;
145 }
146
147 sjoyff_init(hdev);
148
149 return 0;
150 err:
151 return ret;
152 }
153
154 static const struct hid_device_id sjoy_devices[] = {
155 { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_SMARTJOY_PLUS) },
156 { }
157 };
158 MODULE_DEVICE_TABLE(hid, sjoy_devices);
159
160 static struct hid_driver sjoy_driver = {
161 .name = "smartjoyplus",
162 .id_table = sjoy_devices,
163 .probe = sjoy_probe,
164 };
165
166 static int sjoy_init(void)
167 {
168 return hid_register_driver(&sjoy_driver);
169 }
170
171 static void sjoy_exit(void)
172 {
173 hid_unregister_driver(&sjoy_driver);
174 }
175
176 module_init(sjoy_init);
177 module_exit(sjoy_exit);
178 MODULE_LICENSE("GPL");
179 MODULE_AUTHOR("Jussi Kivilinna");
180
181
|
This page was automatically generated by the
LXR engine.
|