Commit | Line | Data |
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c0dbcc33 SK |
1 | /* |
2 | * Force feedback support for ACRUX game controllers | |
3 | * | |
4 | * From what I have gathered, these devices are mass produced in China | |
5 | * by several vendors. They often share the same design as the original | |
6 | * Xbox 360 controller. | |
7 | * | |
8 | * 1a34:0802 "ACRUX USB GAMEPAD 8116" | |
b55ebc27 | 9 | * - tested with an EXEQ EQ-PCU-02090 game controller. |
c0dbcc33 SK |
10 | * |
11 | * Copyright (c) 2010 Sergei Kolzun <x0r@dv-life.ru> | |
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/slab.h> | |
32 | #include <linux/usb.h> | |
33 | #include <linux/hid.h> | |
34 | ||
35 | #include "hid-ids.h" | |
0ae43810 DT |
36 | |
37 | #ifdef CONFIG_HID_ACRUX_FF | |
c0dbcc33 SK |
38 | #include "usbhid/usbhid.h" |
39 | ||
40 | struct axff_device { | |
41 | struct hid_report *report; | |
42 | }; | |
43 | ||
44 | static int axff_play(struct input_dev *dev, void *data, struct ff_effect *effect) | |
45 | { | |
46 | struct hid_device *hid = input_get_drvdata(dev); | |
47 | struct axff_device *axff = data; | |
b55ebc27 SK |
48 | struct hid_report *report = axff->report; |
49 | int field_count = 0; | |
c0dbcc33 | 50 | int left, right; |
b55ebc27 | 51 | int i, j; |
c0dbcc33 SK |
52 | |
53 | left = effect->u.rumble.strong_magnitude; | |
54 | right = effect->u.rumble.weak_magnitude; | |
55 | ||
56 | dbg_hid("called with 0x%04x 0x%04x", left, right); | |
57 | ||
58 | left = left * 0xff / 0xffff; | |
59 | right = right * 0xff / 0xffff; | |
60 | ||
b55ebc27 SK |
61 | for (i = 0; i < report->maxfield; i++) { |
62 | for (j = 0; j < report->field[i]->report_count; j++) { | |
63 | report->field[i]->value[j] = | |
64 | field_count % 2 ? right : left; | |
65 | field_count++; | |
66 | } | |
67 | } | |
68 | ||
c0dbcc33 SK |
69 | dbg_hid("running with 0x%02x 0x%02x", left, right); |
70 | usbhid_submit_report(hid, axff->report, USB_DIR_OUT); | |
71 | ||
72 | return 0; | |
73 | } | |
74 | ||
75 | static int axff_init(struct hid_device *hid) | |
76 | { | |
77 | struct axff_device *axff; | |
78 | struct hid_report *report; | |
79 | struct hid_input *hidinput = list_first_entry(&hid->inputs, struct hid_input, list); | |
80 | struct list_head *report_list =&hid->report_enum[HID_OUTPUT_REPORT].report_list; | |
81 | struct input_dev *dev = hidinput->input; | |
b55ebc27 SK |
82 | int field_count = 0; |
83 | int i, j; | |
c0dbcc33 SK |
84 | int error; |
85 | ||
86 | if (list_empty(report_list)) { | |
4291ee30 | 87 | hid_err(hid, "no output reports found\n"); |
c0dbcc33 SK |
88 | return -ENODEV; |
89 | } | |
90 | ||
91 | report = list_first_entry(report_list, struct hid_report, list); | |
b55ebc27 SK |
92 | for (i = 0; i < report->maxfield; i++) { |
93 | for (j = 0; j < report->field[i]->report_count; j++) { | |
94 | report->field[i]->value[j] = 0x00; | |
95 | field_count++; | |
96 | } | |
97 | } | |
c0dbcc33 | 98 | |
b55ebc27 SK |
99 | if (field_count < 4) { |
100 | hid_err(hid, "not enough fields in the report: %d\n", | |
101 | field_count); | |
c0dbcc33 SK |
102 | return -ENODEV; |
103 | } | |
104 | ||
105 | axff = kzalloc(sizeof(struct axff_device), GFP_KERNEL); | |
106 | if (!axff) | |
107 | return -ENOMEM; | |
108 | ||
109 | set_bit(FF_RUMBLE, dev->ffbit); | |
110 | ||
111 | error = input_ff_create_memless(dev, axff, axff_play); | |
112 | if (error) | |
113 | goto err_free_mem; | |
114 | ||
115 | axff->report = report; | |
c0dbcc33 SK |
116 | usbhid_submit_report(hid, axff->report, USB_DIR_OUT); |
117 | ||
b55ebc27 | 118 | hid_info(hid, "Force Feedback for ACRUX game controllers by Sergei Kolzun <x0r@dv-life.ru>\n"); |
c0dbcc33 SK |
119 | |
120 | return 0; | |
121 | ||
122 | err_free_mem: | |
123 | kfree(axff); | |
124 | return error; | |
125 | } | |
0ae43810 DT |
126 | #else |
127 | static inline int axff_init(struct hid_device *hid) | |
128 | { | |
129 | return 0; | |
130 | } | |
131 | #endif | |
c0dbcc33 SK |
132 | |
133 | static int ax_probe(struct hid_device *hdev, const struct hid_device_id *id) | |
134 | { | |
135 | int error; | |
136 | ||
4291ee30 | 137 | dev_dbg(&hdev->dev, "ACRUX HID hardware probe...\n"); |
c0dbcc33 SK |
138 | |
139 | error = hid_parse(hdev); | |
140 | if (error) { | |
4291ee30 | 141 | hid_err(hdev, "parse failed\n"); |
c0dbcc33 SK |
142 | return error; |
143 | } | |
144 | ||
145 | error = hid_hw_start(hdev, HID_CONNECT_DEFAULT & ~HID_CONNECT_FF); | |
146 | if (error) { | |
4291ee30 | 147 | hid_err(hdev, "hw start failed\n"); |
c0dbcc33 SK |
148 | return error; |
149 | } | |
150 | ||
151 | error = axff_init(hdev); | |
152 | if (error) { | |
153 | /* | |
154 | * Do not fail device initialization completely as device | |
155 | * may still be partially operable, just warn. | |
156 | */ | |
4291ee30 | 157 | hid_warn(hdev, |
c0dbcc33 SK |
158 | "Failed to enable force feedback support, error: %d\n", |
159 | error); | |
160 | } | |
161 | ||
0ae43810 DT |
162 | /* |
163 | * We need to start polling device right away, otherwise | |
164 | * it will go into a coma. | |
165 | */ | |
166 | error = hid_hw_open(hdev); | |
167 | if (error) { | |
168 | dev_err(&hdev->dev, "hw open failed\n"); | |
b30d89d1 | 169 | hid_hw_stop(hdev); |
0ae43810 DT |
170 | return error; |
171 | } | |
172 | ||
c0dbcc33 SK |
173 | return 0; |
174 | } | |
175 | ||
0ae43810 DT |
176 | static void ax_remove(struct hid_device *hdev) |
177 | { | |
178 | hid_hw_close(hdev); | |
179 | hid_hw_stop(hdev); | |
180 | } | |
181 | ||
c0dbcc33 SK |
182 | static const struct hid_device_id ax_devices[] = { |
183 | { HID_USB_DEVICE(USB_VENDOR_ID_ACRUX, 0x0802), }, | |
184 | { } | |
185 | }; | |
186 | MODULE_DEVICE_TABLE(hid, ax_devices); | |
187 | ||
188 | static struct hid_driver ax_driver = { | |
0ae43810 DT |
189 | .name = "acrux", |
190 | .id_table = ax_devices, | |
191 | .probe = ax_probe, | |
192 | .remove = ax_remove, | |
c0dbcc33 SK |
193 | }; |
194 | ||
195 | static int __init ax_init(void) | |
196 | { | |
197 | return hid_register_driver(&ax_driver); | |
198 | } | |
199 | ||
200 | static void __exit ax_exit(void) | |
201 | { | |
202 | hid_unregister_driver(&ax_driver); | |
203 | } | |
204 | ||
205 | module_init(ax_init); | |
206 | module_exit(ax_exit); | |
207 | ||
208 | MODULE_AUTHOR("Sergei Kolzun"); | |
209 | MODULE_DESCRIPTION("Force feedback support for ACRUX game controllers"); | |
210 | MODULE_LICENSE("GPL"); |