blob: 57f710757bf425ac6b32fb49314121357e327b41 [file] [log] [blame]
Anssi Hannulabb3caf72006-07-19 01:44:17 -04001/*
2 * Force feedback support for Zeroplus based devices
3 *
4 * Copyright (c) 2005, 2006 Anssi Hannula <anssi.hannula@gmail.com>
5 */
6
7/*
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
21 */
22
23
Jiri Slaby987fbc12008-09-18 12:23:32 +020024#include <linux/hid.h>
Anssi Hannulabb3caf72006-07-19 01:44:17 -040025#include <linux/input.h>
26#include <linux/usb.h>
Jiri Slaby987fbc12008-09-18 12:23:32 +020027
28#include "hid-ids.h"
29
Jiri Kosina0f6f4312009-05-15 15:46:44 +020030#ifdef CONFIG_ZEROPLUS_FF
Jiri Slaby987fbc12008-09-18 12:23:32 +020031#include "usbhid/usbhid.h"
Anssi Hannulabb3caf72006-07-19 01:44:17 -040032
33struct zpff_device {
34 struct hid_report *report;
35};
36
Jiri Slaby987fbc12008-09-18 12:23:32 +020037static int zpff_play(struct input_dev *dev, void *data,
Anssi Hannulabb3caf72006-07-19 01:44:17 -040038 struct ff_effect *effect)
39{
Dmitry Torokhove0712982007-05-09 10:17:31 +020040 struct hid_device *hid = input_get_drvdata(dev);
Anssi Hannulabb3caf72006-07-19 01:44:17 -040041 struct zpff_device *zpff = data;
42 int left, right;
43
44 /*
45 * The following is specified the other way around in the Zeroplus
46 * datasheet but the order below is correct for the XFX Executioner;
47 * however it is possible that the XFX Executioner is an exception
48 */
49
50 left = effect->u.rumble.strong_magnitude;
51 right = effect->u.rumble.weak_magnitude;
Jiri Kosina58037eb2007-05-30 15:07:13 +020052 dbg_hid("called with 0x%04x 0x%04x\n", left, right);
Anssi Hannulabb3caf72006-07-19 01:44:17 -040053
54 left = left * 0x7f / 0xffff;
55 right = right * 0x7f / 0xffff;
56
57 zpff->report->field[2]->value[0] = left;
58 zpff->report->field[3]->value[0] = right;
Jiri Kosina58037eb2007-05-30 15:07:13 +020059 dbg_hid("running with 0x%02x 0x%02x\n", left, right);
Jiri Kosina4916b3a2006-12-08 18:41:03 +010060 usbhid_submit_report(hid, zpff->report, USB_DIR_OUT);
Anssi Hannulabb3caf72006-07-19 01:44:17 -040061
62 return 0;
63}
64
Jiri Slaby987fbc12008-09-18 12:23:32 +020065static int zpff_init(struct hid_device *hid)
Anssi Hannulabb3caf72006-07-19 01:44:17 -040066{
67 struct zpff_device *zpff;
68 struct hid_report *report;
69 struct hid_input *hidinput = list_entry(hid->inputs.next,
70 struct hid_input, list);
71 struct list_head *report_list =
72 &hid->report_enum[HID_OUTPUT_REPORT].report_list;
73 struct input_dev *dev = hidinput->input;
74 int error;
75
76 if (list_empty(report_list)) {
Jiri Slaby79575012008-09-18 12:23:34 +020077 dev_err(&hid->dev, "no output report found\n");
Anssi Hannulabb3caf72006-07-19 01:44:17 -040078 return -ENODEV;
79 }
80
81 report = list_entry(report_list->next, struct hid_report, list);
82
83 if (report->maxfield < 4) {
Jiri Slaby79575012008-09-18 12:23:34 +020084 dev_err(&hid->dev, "not enough fields in report\n");
Anssi Hannulabb3caf72006-07-19 01:44:17 -040085 return -ENODEV;
86 }
87
88 zpff = kzalloc(sizeof(struct zpff_device), GFP_KERNEL);
89 if (!zpff)
90 return -ENOMEM;
91
92 set_bit(FF_RUMBLE, dev->ffbit);
93
Jiri Slaby987fbc12008-09-18 12:23:32 +020094 error = input_ff_create_memless(dev, zpff, zpff_play);
Anssi Hannulabb3caf72006-07-19 01:44:17 -040095 if (error) {
96 kfree(zpff);
97 return error;
98 }
99
100 zpff->report = report;
101 zpff->report->field[0]->value[0] = 0x00;
102 zpff->report->field[1]->value[0] = 0x02;
103 zpff->report->field[2]->value[0] = 0x00;
104 zpff->report->field[3]->value[0] = 0x00;
Jiri Kosina4916b3a2006-12-08 18:41:03 +0100105 usbhid_submit_report(hid, zpff->report, USB_DIR_OUT);
Anssi Hannulabb3caf72006-07-19 01:44:17 -0400106
Jiri Slaby79575012008-09-18 12:23:34 +0200107 dev_info(&hid->dev, "force feedback for Zeroplus based devices by "
Anssi Hannulabb3caf72006-07-19 01:44:17 -0400108 "Anssi Hannula <anssi.hannula@gmail.com>\n");
109
110 return 0;
111}
Jiri Kosina0f6f4312009-05-15 15:46:44 +0200112#else
113static inline int zpff_init(struct hid_device *hid)
114{
115 return 0;
116}
117#endif
Jiri Slaby987fbc12008-09-18 12:23:32 +0200118
119static int zp_probe(struct hid_device *hdev, const struct hid_device_id *id)
120{
121 int ret;
122
123 ret = hid_parse(hdev);
124 if (ret) {
125 dev_err(&hdev->dev, "parse failed\n");
126 goto err;
127 }
128
129 ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT & ~HID_CONNECT_FF);
130 if (ret) {
131 dev_err(&hdev->dev, "hw start failed\n");
132 goto err;
133 }
134
135 zpff_init(hdev);
136
137 return 0;
138err:
139 return ret;
140}
141
142static const struct hid_device_id zp_devices[] = {
143 { HID_USB_DEVICE(USB_VENDOR_ID_ZEROPLUS, 0x0005) },
144 { HID_USB_DEVICE(USB_VENDOR_ID_ZEROPLUS, 0x0030) },
145 { }
146};
147MODULE_DEVICE_TABLE(hid, zp_devices);
148
149static struct hid_driver zp_driver = {
150 .name = "zeroplus",
151 .id_table = zp_devices,
152 .probe = zp_probe,
153};
154
155static int zp_init(void)
156{
157 return hid_register_driver(&zp_driver);
158}
159
160static void zp_exit(void)
161{
162 hid_unregister_driver(&zp_driver);
163}
164
165module_init(zp_init);
166module_exit(zp_exit);
167MODULE_LICENSE("GPL");