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1 | /* |
2 | * Force feedback support for PantherLord/GreenAsia based devices |
3 | * |
4 | * The devices are distributed under various names and the same USB device ID |
5 | * can be used in both adapters and actual game controllers. |
6 | * |
7 | * 0810:0001 "Twin USB Joystick" |
8 | * - tested with PantherLord USB/PS2 2in1 Adapter |
9 | * - contains two reports, one for each port (HID_QUIRK_MULTI_INPUT) |
10 | * |
11 | * 0e8f:0003 "GreenAsia Inc. USB Joystick " |
12 | * - tested with König Gaming gamepad |
13 | * |
14 | * 0e8f:0003 "GASIA USB Gamepad" |
15 | * - another version of the König gamepad |
16 | * |
17 | * Copyright (c) 2007, 2009 Anssi Hannula <anssi.hannula@gmail.com> |
18 | */ |
19 | |
20 | /* |
21 | * This program is free software; you can redistribute it and/or modify |
22 | * it under the terms of the GNU General Public License as published by |
23 | * the Free Software Foundation; either version 2 of the License, or |
24 | * (at your option) any later version. |
25 | * |
26 | * This program is distributed in the hope that it will be useful, |
27 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
28 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
29 | * GNU General Public License for more details. |
30 | * |
31 | * You should have received a copy of the GNU General Public License |
32 | * along with this program; if not, write to the Free Software |
33 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
34 | */ |
35 | |
36 | |
37 | /* #define DEBUG */ |
38 | |
39 | #define debug(format, arg...) pr_debug("hid-plff: " format "\n" , ## arg) |
40 | |
41 | #include <linux/input.h> |
42 | #include <linux/slab.h> |
43 | #include <linux/module.h> |
44 | #include <linux/usb.h> |
45 | #include <linux/hid.h> |
46 | |
47 | #include "hid-ids.h" |
48 | |
49 | #ifdef CONFIG_PANTHERLORD_FF |
50 | #include "usbhid/usbhid.h" |
51 | |
52 | struct plff_device { |
53 | struct hid_report *report; |
54 | s32 *strong; |
55 | s32 *weak; |
56 | }; |
57 | |
58 | static int hid_plff_play(struct input_dev *dev, void *data, |
59 | struct ff_effect *effect) |
60 | { |
61 | struct hid_device *hid = input_get_drvdata(dev); |
62 | struct plff_device *plff = data; |
63 | int left, right; |
64 | |
65 | left = effect->u.rumble.strong_magnitude; |
66 | right = effect->u.rumble.weak_magnitude; |
67 | debug("called with 0x%04x 0x%04x", left, right); |
68 | |
69 | left = left * 0x7f / 0xffff; |
70 | right = right * 0x7f / 0xffff; |
71 | |
72 | *plff->strong = left; |
73 | *plff->weak = right; |
74 | debug("running with 0x%02x 0x%02x", left, right); |
75 | usbhid_submit_report(hid, plff->report, USB_DIR_OUT); |
76 | |
77 | return 0; |
78 | } |
79 | |
80 | static int plff_init(struct hid_device *hid) |
81 | { |
82 | struct plff_device *plff; |
83 | struct hid_report *report; |
84 | struct hid_input *hidinput; |
85 | struct list_head *report_list = |
86 | &hid->report_enum[HID_OUTPUT_REPORT].report_list; |
87 | struct list_head *report_ptr = report_list; |
88 | struct input_dev *dev; |
89 | int error; |
90 | s32 *strong; |
91 | s32 *weak; |
92 | |
93 | /* The device contains one output report per physical device, all |
94 | containing 1 field, which contains 4 ff00.0002 usages and 4 16bit |
95 | absolute values. |
96 | |
97 | The input reports also contain a field which contains |
98 | 8 ff00.0001 usages and 8 boolean values. Their meaning is |
99 | currently unknown. |
100 | |
101 | A version of the 0e8f:0003 exists that has all the values in |
102 | separate fields and misses the extra input field, thus resembling |
103 | Zeroplus (hid-zpff) devices. |
104 | */ |
105 | |
106 | if (list_empty(report_list)) { |
107 | hid_err(hid, "no output reports found\n"); |
108 | return -ENODEV; |
109 | } |
110 | |
111 | list_for_each_entry(hidinput, &hid->inputs, list) { |
112 | |
113 | report_ptr = report_ptr->next; |
114 | |
115 | if (report_ptr == report_list) { |
116 | hid_err(hid, "required output report is missing\n"); |
117 | return -ENODEV; |
118 | } |
119 | |
120 | report = list_entry(report_ptr, struct hid_report, list); |
121 | if (report->maxfield < 1) { |
122 | hid_err(hid, "no fields in the report\n"); |
123 | return -ENODEV; |
124 | } |
125 | |
126 | if (report->field[0]->report_count >= 4) { |
127 | report->field[0]->value[0] = 0x00; |
128 | report->field[0]->value[1] = 0x00; |
129 | strong = &report->field[0]->value[2]; |
130 | weak = &report->field[0]->value[3]; |
131 | debug("detected single-field device"); |
132 | } else if (report->maxfield >= 4 && report->field[0]->maxusage == 1 && |
133 | report->field[0]->usage[0].hid == (HID_UP_LED | 0x43)) { |
134 | report->field[0]->value[0] = 0x00; |
135 | report->field[1]->value[0] = 0x00; |
136 | strong = &report->field[2]->value[0]; |
137 | weak = &report->field[3]->value[0]; |
138 | debug("detected 4-field device"); |
139 | } else { |
140 | hid_err(hid, "not enough fields or values\n"); |
141 | return -ENODEV; |
142 | } |
143 | |
144 | plff = kzalloc(sizeof(struct plff_device), GFP_KERNEL); |
145 | if (!plff) |
146 | return -ENOMEM; |
147 | |
148 | dev = hidinput->input; |
149 | |
150 | set_bit(FF_RUMBLE, dev->ffbit); |
151 | |
152 | error = input_ff_create_memless(dev, plff, hid_plff_play); |
153 | if (error) { |
154 | kfree(plff); |
155 | return error; |
156 | } |
157 | |
158 | plff->report = report; |
159 | plff->strong = strong; |
160 | plff->weak = weak; |
161 | |
162 | *strong = 0x00; |
163 | *weak = 0x00; |
164 | usbhid_submit_report(hid, plff->report, USB_DIR_OUT); |
165 | } |
166 | |
167 | hid_info(hid, "Force feedback for PantherLord/GreenAsia devices by Anssi Hannula <anssi.hannula@gmail.com>\n"); |
168 | |
169 | return 0; |
170 | } |
171 | #else |
172 | static inline int plff_init(struct hid_device *hid) |
173 | { |
174 | return 0; |
175 | } |
176 | #endif |
177 | |
178 | static int pl_probe(struct hid_device *hdev, const struct hid_device_id *id) |
179 | { |
180 | int ret; |
181 | |
182 | if (id->driver_data) |
183 | hdev->quirks |= HID_QUIRK_MULTI_INPUT; |
184 | |
185 | ret = hid_parse(hdev); |
186 | if (ret) { |
187 | hid_err(hdev, "parse failed\n"); |
188 | goto err; |
189 | } |
190 | |
191 | ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT & ~HID_CONNECT_FF); |
192 | if (ret) { |
193 | hid_err(hdev, "hw start failed\n"); |
194 | goto err; |
195 | } |
196 | |
197 | plff_init(hdev); |
198 | |
199 | return 0; |
200 | err: |
201 | return ret; |
202 | } |
203 | |
204 | static const struct hid_device_id pl_devices[] = { |
205 | { HID_USB_DEVICE(USB_VENDOR_ID_GAMERON, USB_DEVICE_ID_GAMERON_DUAL_PSX_ADAPTOR), |
206 | .driver_data = 1 }, /* Twin USB Joystick */ |
207 | { HID_USB_DEVICE(USB_VENDOR_ID_GAMERON, USB_DEVICE_ID_GAMERON_DUAL_PCS_ADAPTOR), |
208 | .driver_data = 1 }, /* Twin USB Joystick */ |
209 | { HID_USB_DEVICE(USB_VENDOR_ID_GREENASIA, 0x0003), }, |
210 | { } |
211 | }; |
212 | MODULE_DEVICE_TABLE(hid, pl_devices); |
213 | |
214 | static struct hid_driver pl_driver = { |
215 | .name = "pantherlord", |
216 | .id_table = pl_devices, |
217 | .probe = pl_probe, |
218 | }; |
219 | |
220 | static int __init pl_init(void) |
221 | { |
222 | return hid_register_driver(&pl_driver); |
223 | } |
224 | |
225 | static void __exit pl_exit(void) |
226 | { |
227 | hid_unregister_driver(&pl_driver); |
228 | } |
229 | |
230 | module_init(pl_init); |
231 | module_exit(pl_exit); |
232 | MODULE_LICENSE("GPL"); |
233 |
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Tags:
od-2011-09-04
od-2011-09-18
v2.6.34-rc5
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