2 * Force feedback support for DragonRise Inc. game controllers
4 * From what I have gathered, these devices are mass produced in China and are
5 * distributed under several vendors. They often share the same design as
6 * the original PlayStation DualShock controller.
8 * 0079:0006 "DragonRise Inc. Generic USB Joystick "
9 * - tested with a Tesun USB-703 game controller.
11 * Copyright (c) 2009 Richard Walmsley <richwalm@gmail.com>
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>
37 #ifdef CONFIG_DRAGONRISE_FF
38 #include "usbhid/usbhid.h"
41 struct hid_report
*report
;
44 static int drff_play(struct input_dev
*dev
, void *data
,
45 struct ff_effect
*effect
)
47 struct hid_device
*hid
= input_get_drvdata(dev
);
48 struct drff_device
*drff
= data
;
51 strong
= effect
->u
.rumble
.strong_magnitude
;
52 weak
= effect
->u
.rumble
.weak_magnitude
;
54 dbg_hid("called with 0x%04x 0x%04x", strong
, weak
);
57 strong
= strong
* 0xff / 0xffff;
58 weak
= weak
* 0xff / 0xffff;
60 /* While reverse engineering this device, I found that when
61 this value is set, it causes the strong rumble to function
62 at a near maximum speed, so we'll bypass it. */
66 drff
->report
->field
[0]->value
[0] = 0x51;
67 drff
->report
->field
[0]->value
[1] = 0x00;
68 drff
->report
->field
[0]->value
[2] = weak
;
69 drff
->report
->field
[0]->value
[4] = strong
;
70 usbhid_submit_report(hid
, drff
->report
, USB_DIR_OUT
);
72 drff
->report
->field
[0]->value
[0] = 0xfa;
73 drff
->report
->field
[0]->value
[1] = 0xfe;
75 drff
->report
->field
[0]->value
[0] = 0xf3;
76 drff
->report
->field
[0]->value
[1] = 0x00;
79 drff
->report
->field
[0]->value
[2] = 0x00;
80 drff
->report
->field
[0]->value
[4] = 0x00;
81 dbg_hid("running with 0x%02x 0x%02x", strong
, weak
);
82 usbhid_submit_report(hid
, drff
->report
, USB_DIR_OUT
);
87 static int drff_init(struct hid_device
*hid
)
89 struct drff_device
*drff
;
90 struct hid_report
*report
;
91 struct hid_input
*hidinput
= list_first_entry(&hid
->inputs
,
92 struct hid_input
, list
);
93 struct list_head
*report_list
=
94 &hid
->report_enum
[HID_OUTPUT_REPORT
].report_list
;
95 struct input_dev
*dev
= hidinput
->input
;
98 if (list_empty(report_list
)) {
99 dev_err(&hid
->dev
, "no output reports found\n");
103 report
= list_first_entry(report_list
, struct hid_report
, list
);
104 if (report
->maxfield
< 1) {
105 dev_err(&hid
->dev
, "no fields in the report\n");
109 if (report
->field
[0]->report_count
< 7) {
110 dev_err(&hid
->dev
, "not enough values in the field\n");
114 drff
= kzalloc(sizeof(struct drff_device
), GFP_KERNEL
);
118 set_bit(FF_RUMBLE
, dev
->ffbit
);
120 error
= input_ff_create_memless(dev
, drff
, drff_play
);
126 drff
->report
= report
;
127 drff
->report
->field
[0]->value
[0] = 0xf3;
128 drff
->report
->field
[0]->value
[1] = 0x00;
129 drff
->report
->field
[0]->value
[2] = 0x00;
130 drff
->report
->field
[0]->value
[3] = 0x00;
131 drff
->report
->field
[0]->value
[4] = 0x00;
132 drff
->report
->field
[0]->value
[5] = 0x00;
133 drff
->report
->field
[0]->value
[6] = 0x00;
134 usbhid_submit_report(hid
, drff
->report
, USB_DIR_OUT
);
136 dev_info(&hid
->dev
, "Force Feedback for DragonRise Inc. game "
137 "controllers by Richard Walmsley <richwalm@gmail.com>\n");
142 static inline int drff_init(struct hid_device
*hid
)
148 static int dr_probe(struct hid_device
*hdev
, const struct hid_device_id
*id
)
152 dev_dbg(&hdev
->dev
, "DragonRise Inc. HID hardware probe...");
154 ret
= hid_parse(hdev
);
156 dev_err(&hdev
->dev
, "parse failed\n");
160 ret
= hid_hw_start(hdev
, HID_CONNECT_DEFAULT
& ~HID_CONNECT_FF
);
162 dev_err(&hdev
->dev
, "hw start failed\n");
173 static const struct hid_device_id dr_devices
[] = {
174 { HID_USB_DEVICE(USB_VENDOR_ID_DRAGONRISE
, 0x0006), },
177 MODULE_DEVICE_TABLE(hid
, dr_devices
);
179 static struct hid_driver dr_driver
= {
180 .name
= "dragonrise",
181 .id_table
= dr_devices
,
185 static int __init
dr_init(void)
187 return hid_register_driver(&dr_driver
);
190 static void __exit
dr_exit(void)
192 hid_unregister_driver(&dr_driver
);
195 module_init(dr_init
);
196 module_exit(dr_exit
);
197 MODULE_LICENSE("GPL");
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