2 * Force feedback support for GreenAsia (Product ID 0x12) based devices
4 * The devices are distributed under various names and the same USB device ID
5 * can be used in many game controllers.
8 * 0e8f:0012 "GreenAsia Inc. USB Joystick "
9 * - tested with MANTA Warior MM816 and SpeedLink Strike2 SL-6635.
11 * Copyright (c) 2008 Lukasz Lubojanski <lukasz@lubojanski.info>
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>
34 #include <linux/module.h>
37 #ifdef CONFIG_GREENASIA_FF
38 #include "usbhid/usbhid.h"
41 struct hid_report
*report
;
44 static int hid_gaff_play(struct input_dev
*dev
, void *data
,
45 struct ff_effect
*effect
)
47 struct hid_device
*hid
= input_get_drvdata(dev
);
48 struct gaff_device
*gaff
= data
;
51 left
= effect
->u
.rumble
.strong_magnitude
;
52 right
= effect
->u
.rumble
.weak_magnitude
;
54 dbg_hid("called with 0x%04x 0x%04x", left
, right
);
56 left
= left
* 0xfe / 0xffff;
57 right
= right
* 0xfe / 0xffff;
59 gaff
->report
->field
[0]->value
[0] = 0x51;
60 gaff
->report
->field
[0]->value
[1] = 0x0;
61 gaff
->report
->field
[0]->value
[2] = right
;
62 gaff
->report
->field
[0]->value
[3] = 0;
63 gaff
->report
->field
[0]->value
[4] = left
;
64 gaff
->report
->field
[0]->value
[5] = 0;
65 dbg_hid("running with 0x%02x 0x%02x", left
, right
);
66 usbhid_submit_report(hid
, gaff
->report
, USB_DIR_OUT
);
68 gaff
->report
->field
[0]->value
[0] = 0xfa;
69 gaff
->report
->field
[0]->value
[1] = 0xfe;
70 gaff
->report
->field
[0]->value
[2] = 0x0;
71 gaff
->report
->field
[0]->value
[4] = 0x0;
73 usbhid_submit_report(hid
, gaff
->report
, USB_DIR_OUT
);
78 static int gaff_init(struct hid_device
*hid
)
80 struct gaff_device
*gaff
;
81 struct hid_report
*report
;
82 struct hid_input
*hidinput
= list_entry(hid
->inputs
.next
,
83 struct hid_input
, list
);
84 struct list_head
*report_list
=
85 &hid
->report_enum
[HID_OUTPUT_REPORT
].report_list
;
86 struct list_head
*report_ptr
= report_list
;
87 struct input_dev
*dev
= hidinput
->input
;
90 if (list_empty(report_list
)) {
91 hid_err(hid
, "no output reports found\n");
95 report_ptr
= report_ptr
->next
;
97 report
= list_entry(report_ptr
, struct hid_report
, list
);
98 if (report
->maxfield
< 1) {
99 hid_err(hid
, "no fields in the report\n");
103 if (report
->field
[0]->report_count
< 6) {
104 hid_err(hid
, "not enough values in the field\n");
108 gaff
= kzalloc(sizeof(struct gaff_device
), GFP_KERNEL
);
112 set_bit(FF_RUMBLE
, dev
->ffbit
);
114 error
= input_ff_create_memless(dev
, gaff
, hid_gaff_play
);
120 gaff
->report
= report
;
121 gaff
->report
->field
[0]->value
[0] = 0x51;
122 gaff
->report
->field
[0]->value
[1] = 0x00;
123 gaff
->report
->field
[0]->value
[2] = 0x00;
124 gaff
->report
->field
[0]->value
[3] = 0x00;
125 usbhid_submit_report(hid
, gaff
->report
, USB_DIR_OUT
);
127 gaff
->report
->field
[0]->value
[0] = 0xfa;
128 gaff
->report
->field
[0]->value
[1] = 0xfe;
130 usbhid_submit_report(hid
, gaff
->report
, USB_DIR_OUT
);
132 hid_info(hid
, "Force Feedback for GreenAsia 0x12 devices by Lukasz Lubojanski <lukasz@lubojanski.info>\n");
137 static inline int gaff_init(struct hid_device
*hdev
)
143 static int ga_probe(struct hid_device
*hdev
, const struct hid_device_id
*id
)
147 dev_dbg(&hdev
->dev
, "Greenasia HID hardware probe...");
149 ret
= hid_parse(hdev
);
151 hid_err(hdev
, "parse failed\n");
155 ret
= hid_hw_start(hdev
, HID_CONNECT_DEFAULT
& ~HID_CONNECT_FF
);
157 hid_err(hdev
, "hw start failed\n");
168 static const struct hid_device_id ga_devices
[] = {
169 { HID_USB_DEVICE(USB_VENDOR_ID_GREENASIA
, 0x0012), },
172 MODULE_DEVICE_TABLE(hid
, ga_devices
);
174 static struct hid_driver ga_driver
= {
176 .id_table
= ga_devices
,
180 static int __init
ga_init(void)
182 return hid_register_driver(&ga_driver
);
185 static void __exit
ga_exit(void)
187 hid_unregister_driver(&ga_driver
);
190 module_init(ga_init
);
191 module_exit(ga_exit
);
192 MODULE_LICENSE("GPL");
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