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Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
Linus Torvalds1da177e2005-04-16 15:20:36 -07002 * Force feedback support for hid-compliant for some of the devices from
3 * Logitech, namely:
4 * - WingMan Cordless RumblePad
5 * - WingMan Force 3D
6 *
7 * Copyright (c) 2002-2004 Johann Deneux
Anssi Hannuladc76c912006-07-19 01:40:55 -04008 * Copyright (c) 2006 Anssi Hannula <anssi.hannula@gmail.com>
Linus Torvalds1da177e2005-04-16 15:20:36 -07009 */
10
11/*
12 * This program is free software; you can redistribute it and/or modify
13 * it under the terms of the GNU General Public License as published by
14 * the Free Software Foundation; either version 2 of the License, or
15 * (at your option) any later version.
16 *
17 * This program is distributed in the hope that it will be useful,
18 * but WITHOUT ANY WARRANTY; without even the implied warranty of
19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 * GNU General Public License for more details.
21 *
22 * You should have received a copy of the GNU General Public License
23 * along with this program; if not, write to the Free Software
24 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
25 *
26 * Should you need to contact me, the author, you can do so by
27 * e-mail - mail your message to <johann.deneux@it.uu.se>
28 */
29
Joe Perches4291ee32010-12-09 19:29:03 -080030#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
31
Linus Torvalds1da177e2005-04-16 15:20:36 -070032#include <linux/input.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070033#include <linux/usb.h>
Jiri Kosinadde58452006-12-08 18:40:44 +010034#include <linux/hid.h>
Jiri Slaby606bd0a2008-07-04 23:06:45 +020035
36#include "usbhid/usbhid.h"
37#include "hid-lg.h"
Linus Torvalds1da177e2005-04-16 15:20:36 -070038
Kay Sieversf9f852d2006-10-07 21:54:55 +020039struct dev_type {
Linus Torvalds1da177e2005-04-16 15:20:36 -070040 u16 idVendor;
41 u16 idProduct;
Anssi Hannuladc76c912006-07-19 01:40:55 -040042 const signed short *ff;
Linus Torvalds1da177e2005-04-16 15:20:36 -070043};
44
Anssi Hannuladc76c912006-07-19 01:40:55 -040045static const signed short ff_rumble[] = {
Linus Torvalds1da177e2005-04-16 15:20:36 -070046 FF_RUMBLE,
47 -1
48};
49
Anssi Hannuladc76c912006-07-19 01:40:55 -040050static const signed short ff_joystick[] = {
Linus Torvalds1da177e2005-04-16 15:20:36 -070051 FF_CONSTANT,
52 -1
53};
54
Sergey Belyashovf0bca452009-05-15 16:05:57 +020055static const signed short ff_joystick_ac[] = {
56 FF_CONSTANT,
57 FF_AUTOCENTER,
58 -1
59};
60
Sergey Belyashov2bea94d2008-09-02 17:31:16 +020061static const signed short ff_wheel[] = {
62 FF_CONSTANT,
63 FF_AUTOCENTER,
64 -1
65};
66
Kay Sieversf9f852d2006-10-07 21:54:55 +020067static const struct dev_type devices[] = {
Anssi Hannuladc76c912006-07-19 01:40:55 -040068 { 0x046d, 0xc211, ff_rumble },
69 { 0x046d, 0xc219, ff_rumble },
70 { 0x046d, 0xc283, ff_joystick },
Sergey Belyashovf0bca452009-05-15 16:05:57 +020071 { 0x046d, 0xc286, ff_joystick_ac },
Gary Stein74f292c2010-01-13 00:25:58 +010072 { 0x046d, 0xc287, ff_joystick_ac },
Jiri Kosinafd30ea82009-06-23 12:11:31 +020073 { 0x046d, 0xc293, ff_joystick },
Sergey Belyashov92e0d892009-05-04 13:01:02 +040074 { 0x046d, 0xc294, ff_wheel },
Peter Gundermannfdc68072011-05-03 10:15:03 +020075 { 0x046d, 0xc298, ff_wheel },
76 { 0x046d, 0xc299, ff_wheel },
77 { 0x046d, 0xc29b, ff_wheel },
Valentin Zagura130b1ab2007-02-18 01:41:27 -050078 { 0x046d, 0xc295, ff_joystick },
Simon Wood1478d822011-04-01 13:56:00 +020079 { 0x046d, 0xc298, ff_wheel },
80 { 0x046d, 0xc299, ff_wheel },
Sergey Belyashov2bea94d2008-09-02 17:31:16 +020081 { 0x046d, 0xca03, ff_wheel },
Linus Torvalds1da177e2005-04-16 15:20:36 -070082};
83
Anssi Hannuladc76c912006-07-19 01:40:55 -040084static int hid_lgff_play(struct input_dev *dev, void *data, struct ff_effect *effect)
85{
Dmitry Torokhove0712982007-05-09 10:17:31 +020086 struct hid_device *hid = input_get_drvdata(dev);
Anssi Hannuladc76c912006-07-19 01:40:55 -040087 struct list_head *report_list = &hid->report_enum[HID_OUTPUT_REPORT].report_list;
88 struct hid_report *report = list_entry(report_list->next, struct hid_report, list);
89 int x, y;
90 unsigned int left, right;
91
92#define CLAMP(x) if (x < 0) x = 0; if (x > 0xff) x = 0xff
93
94 switch (effect->type) {
95 case FF_CONSTANT:
96 x = effect->u.ramp.start_level + 0x7f; /* 0x7f is center */
97 y = effect->u.ramp.end_level + 0x7f;
98 CLAMP(x);
99 CLAMP(y);
100 report->field[0]->value[0] = 0x51;
101 report->field[0]->value[1] = 0x08;
102 report->field[0]->value[2] = x;
103 report->field[0]->value[3] = y;
Jiri Kosina58037eb2007-05-30 15:07:13 +0200104 dbg_hid("(x, y)=(%04x, %04x)\n", x, y);
Jiri Kosina4916b3a2006-12-08 18:41:03 +0100105 usbhid_submit_report(hid, report, USB_DIR_OUT);
Anssi Hannuladc76c912006-07-19 01:40:55 -0400106 break;
107
108 case FF_RUMBLE:
109 right = effect->u.rumble.strong_magnitude;
110 left = effect->u.rumble.weak_magnitude;
111 right = right * 0xff / 0xffff;
112 left = left * 0xff / 0xffff;
113 CLAMP(left);
114 CLAMP(right);
115 report->field[0]->value[0] = 0x42;
116 report->field[0]->value[1] = 0x00;
117 report->field[0]->value[2] = left;
118 report->field[0]->value[3] = right;
Jiri Kosina58037eb2007-05-30 15:07:13 +0200119 dbg_hid("(left, right)=(%04x, %04x)\n", left, right);
Jiri Kosina4916b3a2006-12-08 18:41:03 +0100120 usbhid_submit_report(hid, report, USB_DIR_OUT);
Anssi Hannuladc76c912006-07-19 01:40:55 -0400121 break;
122 }
123 return 0;
124}
125
Sergey Belyashov2bea94d2008-09-02 17:31:16 +0200126static void hid_lgff_set_autocenter(struct input_dev *dev, u16 magnitude)
127{
128 struct hid_device *hid = input_get_drvdata(dev);
129 struct list_head *report_list = &hid->report_enum[HID_OUTPUT_REPORT].report_list;
130 struct hid_report *report = list_entry(report_list->next, struct hid_report, list);
131 __s32 *value = report->field[0]->value;
132 magnitude = (magnitude >> 12) & 0xf;
133 *value++ = 0xfe;
134 *value++ = 0x0d;
135 *value++ = magnitude; /* clockwise strength */
136 *value++ = magnitude; /* counter-clockwise strength */
137 *value++ = 0x80;
138 *value++ = 0x00;
139 *value = 0x00;
140 usbhid_submit_report(hid, report, USB_DIR_OUT);
141}
142
Jiri Slaby606bd0a2008-07-04 23:06:45 +0200143int lgff_init(struct hid_device* hid)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700144{
Anssi Hannuladc76c912006-07-19 01:40:55 -0400145 struct hid_input *hidinput = list_entry(hid->inputs.next, struct hid_input, list);
146 struct list_head *report_list = &hid->report_enum[HID_OUTPUT_REPORT].report_list;
147 struct input_dev *dev = hidinput->input;
148 struct hid_report *report;
149 struct hid_field *field;
Dmitry Torokhov00a86912007-02-18 01:42:11 -0500150 const signed short *ff_bits = ff_joystick;
Anssi Hannuladc76c912006-07-19 01:40:55 -0400151 int error;
Dmitry Torokhov00a86912007-02-18 01:42:11 -0500152 int i;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700153
154 /* Find the report to use */
Anssi Hannuladc76c912006-07-19 01:40:55 -0400155 if (list_empty(report_list)) {
Joe Perches4291ee32010-12-09 19:29:03 -0800156 hid_err(hid, "No output report found\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700157 return -1;
158 }
Anssi Hannuladc76c912006-07-19 01:40:55 -0400159
Linus Torvalds1da177e2005-04-16 15:20:36 -0700160 /* Check that the report looks ok */
Anssi Hannuladc76c912006-07-19 01:40:55 -0400161 report = list_entry(report_list->next, struct hid_report, list);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700162 field = report->field[0];
163 if (!field) {
Joe Perches4291ee32010-12-09 19:29:03 -0800164 hid_err(hid, "NULL field\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700165 return -1;
166 }
167
Anssi Hannuladc76c912006-07-19 01:40:55 -0400168 for (i = 0; i < ARRAY_SIZE(devices); i++) {
169 if (dev->id.vendor == devices[i].idVendor &&
170 dev->id.product == devices[i].idProduct) {
Dmitry Torokhov00a86912007-02-18 01:42:11 -0500171 ff_bits = devices[i].ff;
Anssi Hannuladc76c912006-07-19 01:40:55 -0400172 break;
173 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700174 }
175
Dmitry Torokhov00a86912007-02-18 01:42:11 -0500176 for (i = 0; ff_bits[i] >= 0; i++)
177 set_bit(ff_bits[i], dev->ffbit);
178
Anssi Hannuladc76c912006-07-19 01:40:55 -0400179 error = input_ff_create_memless(dev, NULL, hid_lgff_play);
180 if (error)
181 return error;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700182
Sergey Belyashov2bea94d2008-09-02 17:31:16 +0200183 if ( test_bit(FF_AUTOCENTER, dev->ffbit) )
184 dev->ff->set_autocenter = hid_lgff_set_autocenter;
185
Joe Perches4291ee32010-12-09 19:29:03 -0800186 pr_info("Force feedback for Logitech force feedback devices by Johann Deneux <johann.deneux@it.uu.se>\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700187
188 return 0;
189}