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fac733f0 JK |
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> | |
5a0e3ad6 | 30 | #include <linux/slab.h> |
fac733f0 JK |
31 | #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 | ||
38 | struct sjoyff_device { | |
39 | struct hid_report *report; | |
40 | }; | |
41 | ||
42 | static 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 | ||
64 | static 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)) { | |
4291ee30 | 77 | hid_err(hid, "no output reports found\n"); |
fac733f0 JK |
78 | return -ENODEV; |
79 | } | |
80 | ||
81 | report_ptr = report_ptr->next; | |
82 | ||
83 | if (report_ptr == report_list) { | |
4291ee30 | 84 | hid_err(hid, "required output report is missing\n"); |
fac733f0 JK |
85 | return -ENODEV; |
86 | } | |
87 | ||
88 | report = list_entry(report_ptr, struct hid_report, list); | |
89 | if (report->maxfield < 1) { | |
4291ee30 | 90 | hid_err(hid, "no fields in the report\n"); |
fac733f0 JK |
91 | return -ENODEV; |
92 | } | |
93 | ||
94 | if (report->field[0]->report_count < 3) { | |
4291ee30 | 95 | hid_err(hid, "not enough values in the field\n"); |
fac733f0 JK |
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 | ||
4291ee30 | 119 | hid_info(hid, "Force feedback for SmartJoy PLUS PS2/USB adapter\n"); |
fac733f0 JK |
120 | |
121 | return 0; | |
122 | } | |
123 | #else | |
124 | static inline int sjoyff_init(struct hid_device *hid) | |
125 | { | |
126 | return 0; | |
127 | } | |
128 | #endif | |
129 | ||
130 | static int sjoy_probe(struct hid_device *hdev, const struct hid_device_id *id) | |
131 | { | |
132 | int ret; | |
133 | ||
134 | ret = hid_parse(hdev); | |
135 | if (ret) { | |
4291ee30 | 136 | hid_err(hdev, "parse failed\n"); |
fac733f0 JK |
137 | goto err; |
138 | } | |
139 | ||
140 | ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT & ~HID_CONNECT_FF); | |
141 | if (ret) { | |
4291ee30 | 142 | hid_err(hdev, "hw start failed\n"); |
fac733f0 JK |
143 | goto err; |
144 | } | |
145 | ||
146 | sjoyff_init(hdev); | |
147 | ||
148 | return 0; | |
149 | err: | |
150 | return ret; | |
151 | } | |
152 | ||
153 | static const struct hid_device_id sjoy_devices[] = { | |
154 | { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_SMARTJOY_PLUS) }, | |
155 | { } | |
156 | }; | |
157 | MODULE_DEVICE_TABLE(hid, sjoy_devices); | |
158 | ||
159 | static struct hid_driver sjoy_driver = { | |
160 | .name = "smartjoyplus", | |
161 | .id_table = sjoy_devices, | |
162 | .probe = sjoy_probe, | |
163 | }; | |
164 | ||
a24f423b | 165 | static int __init sjoy_init(void) |
fac733f0 JK |
166 | { |
167 | return hid_register_driver(&sjoy_driver); | |
168 | } | |
169 | ||
a24f423b | 170 | static void __exit sjoy_exit(void) |
fac733f0 JK |
171 | { |
172 | hid_unregister_driver(&sjoy_driver); | |
173 | } | |
174 | ||
175 | module_init(sjoy_init); | |
176 | module_exit(sjoy_exit); | |
177 | MODULE_LICENSE("GPL"); | |
178 | MODULE_AUTHOR("Jussi Kivilinna"); | |
179 |