aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/hid/hid-gaff.c
diff options
context:
space:
mode:
authorLukasz Lubojanski <lukasz@lubojanski.info>2008-12-11 16:07:59 -0500
committerJiri Kosina <jkosina@suse.cz>2009-01-03 19:00:53 -0500
commit42859e0bd21daba9974757fcfe4a4dde265fe28d (patch)
tree564a60ccdcd1197a052b356dc95e10197d31ded9 /drivers/hid/hid-gaff.c
parentd04b431e3d769fbbf26c4f4072002375c8cc4ed9 (diff)
HID: force feedback driver for GreenAsia 0x12 PID
I have implemented Force Feedback driver for another "GreeAsia" based device (0e8f:0012 "GreenAsia Inc. USB Joystick"). The functionality was tested with MANTA Warior MM816 and SpeedLink Strike2 SL-6635 and fftest software - everything seems to work right. Signed-off-by: Lukasz Lubojanski <lukasz@lubojanski.info> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Diffstat (limited to 'drivers/hid/hid-gaff.c')
-rw-r--r--drivers/hid/hid-gaff.c185
1 files changed, 185 insertions, 0 deletions
diff --git a/drivers/hid/hid-gaff.c b/drivers/hid/hid-gaff.c
new file mode 100644
index 000000000000..71211f6a4f02
--- /dev/null
+++ b/drivers/hid/hid-gaff.c
@@ -0,0 +1,185 @@
1/*
2 * Force feedback support for GreenAsia (Product ID 0x12) based devices
3 *
4 * The devices are distributed under various names and the same USB device ID
5 * can be used in many game controllers.
6 *
7 *
8 * 0e8f:0012 "GreenAsia Inc. USB Joystick "
9 * - tested with MANTA Warior MM816 and SpeedLink Strike2 SL-6635.
10 *
11 * Copyright (c) 2008 Lukasz Lubojanski <lukasz@lubojanski.info>
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/usb.h>
32#include <linux/hid.h>
33#include "hid-ids.h"
34#include "usbhid/usbhid.h"
35
36struct gaff_device {
37 struct hid_report *report;
38};
39
40static int hid_gaff_play(struct input_dev *dev, void *data,
41 struct ff_effect *effect)
42{
43 struct hid_device *hid = input_get_drvdata(dev);
44 struct gaff_device *gaff = data;
45 int left, right;
46
47 left = effect->u.rumble.strong_magnitude;
48 right = effect->u.rumble.weak_magnitude;
49
50 dbg_hid("called with 0x%04x 0x%04x", left, right);
51
52 left = left * 0xfe / 0xffff;
53 right = right * 0xfe / 0xffff;
54
55 gaff->report->field[0]->value[0] = 0x51;
56 gaff->report->field[0]->value[1] = 0x0;
57 gaff->report->field[0]->value[2] = right;
58 gaff->report->field[0]->value[3] = 0;
59 gaff->report->field[0]->value[4] = left;
60 gaff->report->field[0]->value[5] = 0;
61 dbg_hid("running with 0x%02x 0x%02x", left, right);
62 usbhid_submit_report(hid, gaff->report, USB_DIR_OUT);
63
64 gaff->report->field[0]->value[0] = 0xfa;
65 gaff->report->field[0]->value[1] = 0xfe;
66 gaff->report->field[0]->value[2] = 0x0;
67 gaff->report->field[0]->value[4] = 0x0;
68
69 usbhid_submit_report(hid, gaff->report, USB_DIR_OUT);
70
71 return 0;
72}
73
74static int gaff_init(struct hid_device *hid)
75{
76 struct gaff_device *gaff;
77 struct hid_report *report;
78 struct hid_input *hidinput = list_entry(hid->inputs.next,
79 struct hid_input, list);
80 struct list_head *report_list =
81 &hid->report_enum[HID_OUTPUT_REPORT].report_list;
82 struct list_head *report_ptr = report_list;
83 struct input_dev *dev = hidinput->input;
84 int error;
85
86 if (list_empty(report_list)) {
87 dev_err(&hid->dev, "no output reports found\n");
88 return -ENODEV;
89 }
90
91 report_ptr = report_ptr->next;
92
93 report = list_entry(report_ptr, struct hid_report, list);
94 if (report->maxfield < 1) {
95 dev_err(&hid->dev, "no fields in the report\n");
96 return -ENODEV;
97 }
98
99 if (report->field[0]->report_count < 6) {
100 dev_err(&hid->dev, "not enough values in the field\n");
101 return -ENODEV;
102 }
103
104 gaff = kzalloc(sizeof(struct gaff_device), GFP_KERNEL);
105 if (!gaff)
106 return -ENOMEM;
107
108 set_bit(FF_RUMBLE, dev->ffbit);
109
110 error = input_ff_create_memless(dev, gaff, hid_gaff_play);
111 if (error) {
112 kfree(gaff);
113 return error;
114 }
115
116 gaff->report = report;
117 gaff->report->field[0]->value[0] = 0x51;
118 gaff->report->field[0]->value[1] = 0x00;
119 gaff->report->field[0]->value[2] = 0x00;
120 gaff->report->field[0]->value[3] = 0x00;
121 usbhid_submit_report(hid, gaff->report, USB_DIR_OUT);
122
123 gaff->report->field[0]->value[0] = 0xfa;
124 gaff->report->field[0]->value[1] = 0xfe;
125
126 usbhid_submit_report(hid, gaff->report, USB_DIR_OUT);
127
128 dev_info(&hid->dev, "Force Feedback for GreenAsia 0x12"
129 " devices by Lukasz Lubojanski <lukasz@lubojanski.info>\n");
130
131 return 0;
132}
133
134static int ga_probe(struct hid_device *hdev, const struct hid_device_id *id)
135{
136 int ret;
137
138 dev_dbg(&hdev->dev, "Greenasia HID hardware probe...");
139
140 ret = hid_parse(hdev);
141 if (ret) {
142 dev_err(&hdev->dev, "parse failed\n");
143 goto err;
144 }
145
146 ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT & ~HID_CONNECT_FF);
147 if (ret) {
148 dev_err(&hdev->dev, "hw start failed\n");
149 goto err;
150 }
151
152 gaff_init(hdev);
153
154 return 0;
155err:
156 return ret;
157}
158
159static const struct hid_device_id ga_devices[] = {
160 { HID_USB_DEVICE(USB_VENDOR_ID_GREENASIA, 0x0012), },
161 { }
162};
163MODULE_DEVICE_TABLE(hid, ga_devices);
164
165static struct hid_driver ga_driver = {
166 .name = "greenasia",
167 .id_table = ga_devices,
168 .probe = ga_probe,
169};
170
171static int __init ga_init(void)
172{
173 return hid_register_driver(&ga_driver);
174}
175
176static void __exit ga_exit(void)
177{
178 hid_unregister_driver(&ga_driver);
179}
180
181module_init(ga_init);
182module_exit(ga_exit);
183MODULE_LICENSE("GPL");
184
185HID_COMPAT_LOAD_DRIVER(greenasia);