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" | |
0f6f4319 JK |
34 | |
35 | #ifdef CONFIG_GREENASIA_FF | |
42859e0b LL |
36 | #include "usbhid/usbhid.h" |
37 | ||
38 | struct gaff_device { | |
39 | struct hid_report *report; | |
40 | }; | |
41 | ||
42 | static int hid_gaff_play(struct input_dev *dev, void *data, | |
43 | struct ff_effect *effect) | |
44 | { | |
45 | struct hid_device *hid = input_get_drvdata(dev); | |
46 | struct gaff_device *gaff = data; | |
47 | int left, right; | |
48 | ||
49 | left = effect->u.rumble.strong_magnitude; | |
50 | right = effect->u.rumble.weak_magnitude; | |
51 | ||
52 | dbg_hid("called with 0x%04x 0x%04x", left, right); | |
53 | ||
54 | left = left * 0xfe / 0xffff; | |
55 | right = right * 0xfe / 0xffff; | |
56 | ||
57 | gaff->report->field[0]->value[0] = 0x51; | |
58 | gaff->report->field[0]->value[1] = 0x0; | |
59 | gaff->report->field[0]->value[2] = right; | |
60 | gaff->report->field[0]->value[3] = 0; | |
61 | gaff->report->field[0]->value[4] = left; | |
62 | gaff->report->field[0]->value[5] = 0; | |
63 | dbg_hid("running with 0x%02x 0x%02x", left, right); | |
64 | usbhid_submit_report(hid, gaff->report, USB_DIR_OUT); | |
65 | ||
66 | gaff->report->field[0]->value[0] = 0xfa; | |
67 | gaff->report->field[0]->value[1] = 0xfe; | |
68 | gaff->report->field[0]->value[2] = 0x0; | |
69 | gaff->report->field[0]->value[4] = 0x0; | |
70 | ||
71 | usbhid_submit_report(hid, gaff->report, USB_DIR_OUT); | |
72 | ||
73 | return 0; | |
74 | } | |
75 | ||
76 | static int gaff_init(struct hid_device *hid) | |
77 | { | |
78 | struct gaff_device *gaff; | |
79 | struct hid_report *report; | |
80 | struct hid_input *hidinput = list_entry(hid->inputs.next, | |
81 | struct hid_input, list); | |
82 | struct list_head *report_list = | |
83 | &hid->report_enum[HID_OUTPUT_REPORT].report_list; | |
84 | struct list_head *report_ptr = report_list; | |
85 | struct input_dev *dev = hidinput->input; | |
86 | int error; | |
87 | ||
88 | if (list_empty(report_list)) { | |
89 | dev_err(&hid->dev, "no output reports found\n"); | |
90 | return -ENODEV; | |
91 | } | |
92 | ||
93 | report_ptr = report_ptr->next; | |
94 | ||
95 | report = list_entry(report_ptr, struct hid_report, list); | |
96 | if (report->maxfield < 1) { | |
97 | dev_err(&hid->dev, "no fields in the report\n"); | |
98 | return -ENODEV; | |
99 | } | |
100 | ||
101 | if (report->field[0]->report_count < 6) { | |
102 | dev_err(&hid->dev, "not enough values in the field\n"); | |
103 | return -ENODEV; | |
104 | } | |
105 | ||
106 | gaff = kzalloc(sizeof(struct gaff_device), GFP_KERNEL); | |
107 | if (!gaff) | |
108 | return -ENOMEM; | |
109 | ||
110 | set_bit(FF_RUMBLE, dev->ffbit); | |
111 | ||
112 | error = input_ff_create_memless(dev, gaff, hid_gaff_play); | |
113 | if (error) { | |
114 | kfree(gaff); | |
115 | return error; | |
116 | } | |
117 | ||
118 | gaff->report = report; | |
119 | gaff->report->field[0]->value[0] = 0x51; | |
120 | gaff->report->field[0]->value[1] = 0x00; | |
121 | gaff->report->field[0]->value[2] = 0x00; | |
122 | gaff->report->field[0]->value[3] = 0x00; | |
123 | usbhid_submit_report(hid, gaff->report, USB_DIR_OUT); | |
124 | ||
125 | gaff->report->field[0]->value[0] = 0xfa; | |
126 | gaff->report->field[0]->value[1] = 0xfe; | |
127 | ||
128 | usbhid_submit_report(hid, gaff->report, USB_DIR_OUT); | |
129 | ||
130 | dev_info(&hid->dev, "Force Feedback for GreenAsia 0x12" | |
131 | " devices by Lukasz Lubojanski <lukasz@lubojanski.info>\n"); | |
132 | ||
133 | return 0; | |
134 | } | |
0f6f4319 JK |
135 | #else |
136 | static inline int gaff_init(struct hid_device *hdev) | |
137 | { | |
138 | return 0; | |
139 | } | |
140 | #endif | |
42859e0b LL |
141 | |
142 | static int ga_probe(struct hid_device *hdev, const struct hid_device_id *id) | |
143 | { | |
144 | int ret; | |
145 | ||
146 | dev_dbg(&hdev->dev, "Greenasia HID hardware probe..."); | |
147 | ||
148 | ret = hid_parse(hdev); | |
149 | if (ret) { | |
150 | dev_err(&hdev->dev, "parse failed\n"); | |
151 | goto err; | |
152 | } | |
153 | ||
154 | ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT & ~HID_CONNECT_FF); | |
155 | if (ret) { | |
156 | dev_err(&hdev->dev, "hw start failed\n"); | |
157 | goto err; | |
158 | } | |
159 | ||
160 | gaff_init(hdev); | |
161 | ||
162 | return 0; | |
163 | err: | |
164 | return ret; | |
165 | } | |
166 | ||
167 | static const struct hid_device_id ga_devices[] = { | |
168 | { HID_USB_DEVICE(USB_VENDOR_ID_GREENASIA, 0x0012), }, | |
169 | { } | |
170 | }; | |
171 | MODULE_DEVICE_TABLE(hid, ga_devices); | |
172 | ||
173 | static struct hid_driver ga_driver = { | |
174 | .name = "greenasia", | |
175 | .id_table = ga_devices, | |
176 | .probe = ga_probe, | |
177 | }; | |
178 | ||
179 | static int __init ga_init(void) | |
180 | { | |
181 | return hid_register_driver(&ga_driver); | |
182 | } | |
183 | ||
184 | static void __exit ga_exit(void) | |
185 | { | |
186 | hid_unregister_driver(&ga_driver); | |
187 | } | |
188 | ||
189 | module_init(ga_init); | |
190 | module_exit(ga_exit); | |
191 | MODULE_LICENSE("GPL"); |