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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"
9 * - tested with a EXEQ EQ-PCU-02090 game controller.
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"
36
37#ifdef CONFIG_HID_ACRUX_FF
38#include "usbhid/usbhid.h"
39
40struct axff_device {
41 struct hid_report *report;
42};
43
44static 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;
48 int left, right;
49
50 left = effect->u.rumble.strong_magnitude;
51 right = effect->u.rumble.weak_magnitude;
52
53 dbg_hid("called with 0x%04x 0x%04x", left, right);
54
55 left = left * 0xff / 0xffff;
56 right = right * 0xff / 0xffff;
57
58 axff->report->field[0]->value[0] = left;
59 axff->report->field[1]->value[0] = right;
60 axff->report->field[2]->value[0] = left;
61 axff->report->field[3]->value[0] = right;
62 dbg_hid("running with 0x%02x 0x%02x", left, right);
63 usbhid_submit_report(hid, axff->report, USB_DIR_OUT);
64
65 return 0;
66}
67
68static int axff_init(struct hid_device *hid)
69{
70 struct axff_device *axff;
71 struct hid_report *report;
72 struct hid_input *hidinput = list_first_entry(&hid->inputs, struct hid_input, list);
73 struct list_head *report_list =&hid->report_enum[HID_OUTPUT_REPORT].report_list;
74 struct input_dev *dev = hidinput->input;
75 int error;
76
77 if (list_empty(report_list)) {
78 hid_err(hid, "no output reports found\n");
79 return -ENODEV;
80 }
81
82 report = list_first_entry(report_list, struct hid_report, list);
83
84 if (report->maxfield < 4) {
85 hid_err(hid, "no fields in the report: %d\n", report->maxfield);
86 return -ENODEV;
87 }
88
89 axff = kzalloc(sizeof(struct axff_device), GFP_KERNEL);
90 if (!axff)
91 return -ENOMEM;
92
93 set_bit(FF_RUMBLE, dev->ffbit);
94
95 error = input_ff_create_memless(dev, axff, axff_play);
96 if (error)
97 goto err_free_mem;
98
99 axff->report = report;
100 axff->report->field[0]->value[0] = 0x00;
101 axff->report->field[1]->value[0] = 0x00;
102 axff->report->field[2]->value[0] = 0x00;
103 axff->report->field[3]->value[0] = 0x00;
104 usbhid_submit_report(hid, axff->report, USB_DIR_OUT);
105
106 hid_info(hid, "Force Feedback for ACRUX game controllers by Sergei Kolzun<x0r@dv-life.ru>\n");
107
108 return 0;
109
110err_free_mem:
111 kfree(axff);
112 return error;
113}
114#else
115static inline int axff_init(struct hid_device *hid)
116{
117 return 0;
118}
119#endif
120
121static int ax_probe(struct hid_device *hdev, const struct hid_device_id *id)
122{
123 int error;
124
125 dev_dbg(&hdev->dev, "ACRUX HID hardware probe...\n");
126
127 error = hid_parse(hdev);
128 if (error) {
129 hid_err(hdev, "parse failed\n");
130 return error;
131 }
132
133 error = hid_hw_start(hdev, HID_CONNECT_DEFAULT & ~HID_CONNECT_FF);
134 if (error) {
135 hid_err(hdev, "hw start failed\n");
136 return error;
137 }
138
139 error = axff_init(hdev);
140 if (error) {
141 /*
142 * Do not fail device initialization completely as device
143 * may still be partially operable, just warn.
144 */
145 hid_warn(hdev,
146 "Failed to enable force feedback support, error: %d\n",
147 error);
148 }
149
150 /*
151 * We need to start polling device right away, otherwise
152 * it will go into a coma.
153 */
154 error = hid_hw_open(hdev);
155 if (error) {
156 dev_err(&hdev->dev, "hw open failed\n");
157 hid_hw_stop(hdev);
158 return error;
159 }
160
161 return 0;
162}
163
164static void ax_remove(struct hid_device *hdev)
165{
166 hid_hw_close(hdev);
167 hid_hw_stop(hdev);
168}
169
170static const struct hid_device_id ax_devices[] = {
171 { HID_USB_DEVICE(USB_VENDOR_ID_ACRUX, 0x0802), },
172 { }
173};
174MODULE_DEVICE_TABLE(hid, ax_devices);
175
176static struct hid_driver ax_driver = {
177 .name = "acrux",
178 .id_table = ax_devices,
179 .probe = ax_probe,
180 .remove = ax_remove,
181};
182
183static int __init ax_init(void)
184{
185 return hid_register_driver(&ax_driver);
186}
187
188static void __exit ax_exit(void)
189{
190 hid_unregister_driver(&ax_driver);
191}
192
193module_init(ax_init);
194module_exit(ax_exit);
195
196MODULE_AUTHOR("Sergei Kolzun");
197MODULE_DESCRIPTION("Force feedback support for ACRUX game controllers");
198MODULE_LICENSE("GPL");
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"
9 * - tested with an EXEQ EQ-PCU-02090 game controller.
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#include <linux/module.h>
35
36#include "hid-ids.h"
37
38#ifdef CONFIG_HID_ACRUX_FF
39#include "usbhid/usbhid.h"
40
41struct axff_device {
42 struct hid_report *report;
43};
44
45static int axff_play(struct input_dev *dev, void *data, struct ff_effect *effect)
46{
47 struct hid_device *hid = input_get_drvdata(dev);
48 struct axff_device *axff = data;
49 struct hid_report *report = axff->report;
50 int field_count = 0;
51 int left, right;
52 int i, j;
53
54 left = effect->u.rumble.strong_magnitude;
55 right = effect->u.rumble.weak_magnitude;
56
57 dbg_hid("called with 0x%04x 0x%04x", left, right);
58
59 left = left * 0xff / 0xffff;
60 right = right * 0xff / 0xffff;
61
62 for (i = 0; i < report->maxfield; i++) {
63 for (j = 0; j < report->field[i]->report_count; j++) {
64 report->field[i]->value[j] =
65 field_count % 2 ? right : left;
66 field_count++;
67 }
68 }
69
70 dbg_hid("running with 0x%02x 0x%02x", left, right);
71 usbhid_submit_report(hid, axff->report, USB_DIR_OUT);
72
73 return 0;
74}
75
76static int axff_init(struct hid_device *hid)
77{
78 struct axff_device *axff;
79 struct hid_report *report;
80 struct hid_input *hidinput = list_first_entry(&hid->inputs, struct hid_input, list);
81 struct list_head *report_list =&hid->report_enum[HID_OUTPUT_REPORT].report_list;
82 struct input_dev *dev = hidinput->input;
83 int field_count = 0;
84 int i, j;
85 int error;
86
87 if (list_empty(report_list)) {
88 hid_err(hid, "no output reports found\n");
89 return -ENODEV;
90 }
91
92 report = list_first_entry(report_list, struct hid_report, list);
93 for (i = 0; i < report->maxfield; i++) {
94 for (j = 0; j < report->field[i]->report_count; j++) {
95 report->field[i]->value[j] = 0x00;
96 field_count++;
97 }
98 }
99
100 if (field_count < 4) {
101 hid_err(hid, "not enough fields in the report: %d\n",
102 field_count);
103 return -ENODEV;
104 }
105
106 axff = kzalloc(sizeof(struct axff_device), GFP_KERNEL);
107 if (!axff)
108 return -ENOMEM;
109
110 set_bit(FF_RUMBLE, dev->ffbit);
111
112 error = input_ff_create_memless(dev, axff, axff_play);
113 if (error)
114 goto err_free_mem;
115
116 axff->report = report;
117 usbhid_submit_report(hid, axff->report, USB_DIR_OUT);
118
119 hid_info(hid, "Force Feedback for ACRUX game controllers by Sergei Kolzun <x0r@dv-life.ru>\n");
120
121 return 0;
122
123err_free_mem:
124 kfree(axff);
125 return error;
126}
127#else
128static inline int axff_init(struct hid_device *hid)
129{
130 return 0;
131}
132#endif
133
134static int ax_probe(struct hid_device *hdev, const struct hid_device_id *id)
135{
136 int error;
137
138 dev_dbg(&hdev->dev, "ACRUX HID hardware probe...\n");
139
140 error = hid_parse(hdev);
141 if (error) {
142 hid_err(hdev, "parse failed\n");
143 return error;
144 }
145
146 error = hid_hw_start(hdev, HID_CONNECT_DEFAULT & ~HID_CONNECT_FF);
147 if (error) {
148 hid_err(hdev, "hw start failed\n");
149 return error;
150 }
151
152 error = axff_init(hdev);
153 if (error) {
154 /*
155 * Do not fail device initialization completely as device
156 * may still be partially operable, just warn.
157 */
158 hid_warn(hdev,
159 "Failed to enable force feedback support, error: %d\n",
160 error);
161 }
162
163 /*
164 * We need to start polling device right away, otherwise
165 * it will go into a coma.
166 */
167 error = hid_hw_open(hdev);
168 if (error) {
169 dev_err(&hdev->dev, "hw open failed\n");
170 hid_hw_stop(hdev);
171 return error;
172 }
173
174 return 0;
175}
176
177static void ax_remove(struct hid_device *hdev)
178{
179 hid_hw_close(hdev);
180 hid_hw_stop(hdev);
181}
182
183static const struct hid_device_id ax_devices[] = {
184 { HID_USB_DEVICE(USB_VENDOR_ID_ACRUX, 0x0802), },
185 { }
186};
187MODULE_DEVICE_TABLE(hid, ax_devices);
188
189static struct hid_driver ax_driver = {
190 .name = "acrux",
191 .id_table = ax_devices,
192 .probe = ax_probe,
193 .remove = ax_remove,
194};
195
196static int __init ax_init(void)
197{
198 return hid_register_driver(&ax_driver);
199}
200
201static void __exit ax_exit(void)
202{
203 hid_unregister_driver(&ax_driver);
204}
205
206module_init(ax_init);
207module_exit(ax_exit);
208
209MODULE_AUTHOR("Sergei Kolzun");
210MODULE_DESCRIPTION("Force feedback support for ACRUX game controllers");
211MODULE_LICENSE("GPL");