2 * Force feedback support for ACRUX game controllers
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
8 * 1a34:0802 "ACRUX USB GAMEPAD 8116"
9 * - tested with a EXEQ EQ-PCU-02090 game controller.
11 * Copyright (c) 2010 Sergei Kolzun <x0r@dv-life.ru>
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.
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.
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
30 #include <linux/input.h>
31 #include <linux/slab.h>
32 #include <linux/usb.h>
33 #include <linux/hid.h>
36 #include "usbhid/usbhid.h"
39 struct hid_report
*report
;
42 static int axff_play(struct input_dev
*dev
, void *data
, struct ff_effect
*effect
)
44 struct hid_device
*hid
= input_get_drvdata(dev
);
45 struct axff_device
*axff
= data
;
48 left
= effect
->u
.rumble
.strong_magnitude
;
49 right
= effect
->u
.rumble
.weak_magnitude
;
51 dbg_hid("called with 0x%04x 0x%04x", left
, right
);
53 left
= left
* 0xff / 0xffff;
54 right
= right
* 0xff / 0xffff;
56 axff
->report
->field
[0]->value
[0] = left
;
57 axff
->report
->field
[1]->value
[0] = right
;
58 axff
->report
->field
[2]->value
[0] = left
;
59 axff
->report
->field
[3]->value
[0] = right
;
60 dbg_hid("running with 0x%02x 0x%02x", left
, right
);
61 usbhid_submit_report(hid
, axff
->report
, USB_DIR_OUT
);
66 static int axff_init(struct hid_device
*hid
)
68 struct axff_device
*axff
;
69 struct hid_report
*report
;
70 struct hid_input
*hidinput
= list_first_entry(&hid
->inputs
, struct hid_input
, list
);
71 struct list_head
*report_list
=&hid
->report_enum
[HID_OUTPUT_REPORT
].report_list
;
72 struct input_dev
*dev
= hidinput
->input
;
75 if (list_empty(report_list
)) {
76 hid_err(hid
, "no output reports found\n");
80 report
= list_first_entry(report_list
, struct hid_report
, list
);
82 if (report
->maxfield
< 4) {
83 hid_err(hid
, "no fields in the report: %d\n", report
->maxfield
);
87 axff
= kzalloc(sizeof(struct axff_device
), GFP_KERNEL
);
91 set_bit(FF_RUMBLE
, dev
->ffbit
);
93 error
= input_ff_create_memless(dev
, axff
, axff_play
);
97 axff
->report
= report
;
98 axff
->report
->field
[0]->value
[0] = 0x00;
99 axff
->report
->field
[1]->value
[0] = 0x00;
100 axff
->report
->field
[2]->value
[0] = 0x00;
101 axff
->report
->field
[3]->value
[0] = 0x00;
102 usbhid_submit_report(hid
, axff
->report
, USB_DIR_OUT
);
104 hid_info(hid
, "Force Feedback for ACRUX game controllers by Sergei Kolzun<x0r@dv-life.ru>\n");
113 static int ax_probe(struct hid_device
*hdev
, const struct hid_device_id
*id
)
117 dev_dbg(&hdev
->dev
, "ACRUX HID hardware probe...\n");
119 error
= hid_parse(hdev
);
121 hid_err(hdev
, "parse failed\n");
125 error
= hid_hw_start(hdev
, HID_CONNECT_DEFAULT
& ~HID_CONNECT_FF
);
127 hid_err(hdev
, "hw start failed\n");
131 error
= axff_init(hdev
);
134 * Do not fail device initialization completely as device
135 * may still be partially operable, just warn.
138 "Failed to enable force feedback support, error: %d\n",
145 static const struct hid_device_id ax_devices
[] = {
146 { HID_USB_DEVICE(USB_VENDOR_ID_ACRUX
, 0x0802), },
149 MODULE_DEVICE_TABLE(hid
, ax_devices
);
151 static struct hid_driver ax_driver
= {
153 .id_table
= ax_devices
,
157 static int __init
ax_init(void)
159 return hid_register_driver(&ax_driver
);
162 static void __exit
ax_exit(void)
164 hid_unregister_driver(&ax_driver
);
167 module_init(ax_init
);
168 module_exit(ax_exit
);
170 MODULE_AUTHOR("Sergei Kolzun");
171 MODULE_DESCRIPTION("Force feedback support for ACRUX game controllers");
172 MODULE_LICENSE("GPL");
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