Commit | Line | Data |
---|---|---|
42859e0b LL |
1 | /* |
2 | * Force feedback support for GreenAsia (Product ID 0x12) based devices | |
3 | * | |
4 | * The devices are distributed under various names and the same USB device ID | |
5 | * can be used in many game controllers. | |
6 | * | |
7 | * | |
8 | * 0e8f:0012 "GreenAsia Inc. USB Joystick " | |
9 | * - tested with MANTA Warior MM816 and SpeedLink Strike2 SL-6635. | |
10 | * | |
11 | * Copyright (c) 2008 Lukasz Lubojanski <lukasz@lubojanski.info> | |
12 | */ | |
13 | ||
14 | /* | |
15 | * This program is free software; you can redistribute it and/or modify | |
16 | * it under the terms of the GNU General Public License as published by | |
17 | * the Free Software Foundation; either version 2 of the License, or | |
18 | * (at your option) any later version. | |
19 | * | |
20 | * This program is distributed in the hope that it will be useful, | |
21 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
22 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
23 | * GNU General Public License for more details. | |
24 | * | |
25 | * You should have received a copy of the GNU General Public License | |
26 | * along with this program; if not, write to the Free Software | |
27 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
28 | */ | |
29 | ||
30 | #include <linux/input.h> | |
31 | #include <linux/usb.h> | |
32 | #include <linux/hid.h> | |
33 | #include "hid-ids.h" | |
34 | #include "usbhid/usbhid.h" | |
35 | ||
36 | struct gaff_device { | |
37 | struct hid_report *report; | |
38 | }; | |
39 | ||
40 | static int hid_gaff_play(struct input_dev *dev, void *data, | |
41 | struct ff_effect *effect) | |
42 | { | |
43 | struct hid_device *hid = input_get_drvdata(dev); | |
44 | struct gaff_device *gaff = data; | |
45 | int left, right; | |
46 | ||
47 | left = effect->u.rumble.strong_magnitude; | |
48 | right = effect->u.rumble.weak_magnitude; | |
49 | ||
50 | dbg_hid("called with 0x%04x 0x%04x", left, right); | |
51 | ||
52 | left = left * 0xfe / 0xffff; | |
53 | right = right * 0xfe / 0xffff; | |
54 | ||
55 | gaff->report->field[0]->value[0] = 0x51; | |
56 | gaff->report->field[0]->value[1] = 0x0; | |
57 | gaff->report->field[0]->value[2] = right; | |
58 | gaff->report->field[0]->value[3] = 0; | |
59 | gaff->report->field[0]->value[4] = left; | |
60 | gaff->report->field[0]->value[5] = 0; | |
61 | dbg_hid("running with 0x%02x 0x%02x", left, right); | |
62 | usbhid_submit_report(hid, gaff->report, USB_DIR_OUT); | |
63 | ||
64 | gaff->report->field[0]->value[0] = 0xfa; | |
65 | gaff->report->field[0]->value[1] = 0xfe; | |
66 | gaff->report->field[0]->value[2] = 0x0; | |
67 | gaff->report->field[0]->value[4] = 0x0; | |
68 | ||
69 | usbhid_submit_report(hid, gaff->report, USB_DIR_OUT); | |
70 | ||
71 | return 0; | |
72 | } | |
73 | ||
74 | static int gaff_init(struct hid_device *hid) | |
75 | { | |
76 | struct gaff_device *gaff; | |
77 | struct hid_report *report; | |
78 | struct hid_input *hidinput = list_entry(hid->inputs.next, | |
79 | struct hid_input, list); | |
80 | struct list_head *report_list = | |
81 | &hid->report_enum[HID_OUTPUT_REPORT].report_list; | |
82 | struct list_head *report_ptr = report_list; | |
83 | struct input_dev *dev = hidinput->input; | |
84 | int error; | |
85 | ||
86 | if (list_empty(report_list)) { | |
87 | dev_err(&hid->dev, "no output reports found\n"); | |
88 | return -ENODEV; | |
89 | } | |
90 | ||
91 | report_ptr = report_ptr->next; | |
92 | ||
93 | report = list_entry(report_ptr, struct hid_report, list); | |
94 | if (report->maxfield < 1) { | |
95 | dev_err(&hid->dev, "no fields in the report\n"); | |
96 | return -ENODEV; | |
97 | } | |
98 | ||
99 | if (report->field[0]->report_count < 6) { | |
100 | dev_err(&hid->dev, "not enough values in the field\n"); | |
101 | return -ENODEV; | |
102 | } | |
103 | ||
104 | gaff = kzalloc(sizeof(struct gaff_device), GFP_KERNEL); | |
105 | if (!gaff) | |
106 | return -ENOMEM; | |
107 | ||
108 | set_bit(FF_RUMBLE, dev->ffbit); | |
109 | ||
110 | error = input_ff_create_memless(dev, gaff, hid_gaff_play); | |
111 | if (error) { | |
112 | kfree(gaff); | |
113 | return error; | |
114 | } | |
115 | ||
116 | gaff->report = report; | |
117 | gaff->report->field[0]->value[0] = 0x51; | |
118 | gaff->report->field[0]->value[1] = 0x00; | |
119 | gaff->report->field[0]->value[2] = 0x00; | |
120 | gaff->report->field[0]->value[3] = 0x00; | |
121 | usbhid_submit_report(hid, gaff->report, USB_DIR_OUT); | |
122 | ||
123 | gaff->report->field[0]->value[0] = 0xfa; | |
124 | gaff->report->field[0]->value[1] = 0xfe; | |
125 | ||
126 | usbhid_submit_report(hid, gaff->report, USB_DIR_OUT); | |
127 | ||
128 | dev_info(&hid->dev, "Force Feedback for GreenAsia 0x12" | |
129 | " devices by Lukasz Lubojanski <lukasz@lubojanski.info>\n"); | |
130 | ||
131 | return 0; | |
132 | } | |
133 | ||
134 | static int ga_probe(struct hid_device *hdev, const struct hid_device_id *id) | |
135 | { | |
136 | int ret; | |
137 | ||
138 | dev_dbg(&hdev->dev, "Greenasia HID hardware probe..."); | |
139 | ||
140 | ret = hid_parse(hdev); | |
141 | if (ret) { | |
142 | dev_err(&hdev->dev, "parse failed\n"); | |
143 | goto err; | |
144 | } | |
145 | ||
146 | ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT & ~HID_CONNECT_FF); | |
147 | if (ret) { | |
148 | dev_err(&hdev->dev, "hw start failed\n"); | |
149 | goto err; | |
150 | } | |
151 | ||
152 | gaff_init(hdev); | |
153 | ||
154 | return 0; | |
155 | err: | |
156 | return ret; | |
157 | } | |
158 | ||
159 | static const struct hid_device_id ga_devices[] = { | |
160 | { HID_USB_DEVICE(USB_VENDOR_ID_GREENASIA, 0x0012), }, | |
161 | { } | |
162 | }; | |
163 | MODULE_DEVICE_TABLE(hid, ga_devices); | |
164 | ||
165 | static struct hid_driver ga_driver = { | |
166 | .name = "greenasia", | |
167 | .id_table = ga_devices, | |
168 | .probe = ga_probe, | |
169 | }; | |
170 | ||
171 | static int __init ga_init(void) | |
172 | { | |
173 | return hid_register_driver(&ga_driver); | |
174 | } | |
175 | ||
176 | static void __exit ga_exit(void) | |
177 | { | |
178 | hid_unregister_driver(&ga_driver); | |
179 | } | |
180 | ||
181 | module_init(ga_init); | |
182 | module_exit(ga_exit); | |
183 | MODULE_LICENSE("GPL"); |