Commit | Line | Data |
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1da177e4 | 1 | /* |
1da177e4 LT |
2 | * 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 | |
dc76c912 | 8 | * Copyright (c) 2006 Anssi Hannula <anssi.hannula@gmail.com> |
1da177e4 LT |
9 | */ |
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 | ||
30 | #include <linux/input.h> | |
1da177e4 | 31 | #include <linux/usb.h> |
dde5845a | 32 | #include <linux/hid.h> |
4916b3a5 | 33 | #include "usbhid.h" |
1da177e4 | 34 | |
f9f852df | 35 | struct dev_type { |
1da177e4 LT |
36 | u16 idVendor; |
37 | u16 idProduct; | |
dc76c912 | 38 | const signed short *ff; |
1da177e4 LT |
39 | }; |
40 | ||
dc76c912 | 41 | static const signed short ff_rumble[] = { |
1da177e4 LT |
42 | FF_RUMBLE, |
43 | -1 | |
44 | }; | |
45 | ||
dc76c912 | 46 | static const signed short ff_joystick[] = { |
1da177e4 LT |
47 | FF_CONSTANT, |
48 | -1 | |
49 | }; | |
50 | ||
f9f852df | 51 | static const struct dev_type devices[] = { |
dc76c912 AH |
52 | { 0x046d, 0xc211, ff_rumble }, |
53 | { 0x046d, 0xc219, ff_rumble }, | |
54 | { 0x046d, 0xc283, ff_joystick }, | |
320c0150 | 55 | { 0x046d, 0xc286, ff_joystick }, |
130b1ab3 VZ |
56 | { 0x046d, 0xc294, ff_joystick }, |
57 | { 0x046d, 0xc295, ff_joystick }, | |
285b0b62 | 58 | { 0x046d, 0xca03, ff_joystick }, |
1da177e4 LT |
59 | }; |
60 | ||
dc76c912 AH |
61 | static int hid_lgff_play(struct input_dev *dev, void *data, struct ff_effect *effect) |
62 | { | |
e0712985 | 63 | struct hid_device *hid = input_get_drvdata(dev); |
dc76c912 AH |
64 | struct list_head *report_list = &hid->report_enum[HID_OUTPUT_REPORT].report_list; |
65 | struct hid_report *report = list_entry(report_list->next, struct hid_report, list); | |
66 | int x, y; | |
67 | unsigned int left, right; | |
68 | ||
69 | #define CLAMP(x) if (x < 0) x = 0; if (x > 0xff) x = 0xff | |
70 | ||
71 | switch (effect->type) { | |
72 | case FF_CONSTANT: | |
73 | x = effect->u.ramp.start_level + 0x7f; /* 0x7f is center */ | |
74 | y = effect->u.ramp.end_level + 0x7f; | |
75 | CLAMP(x); | |
76 | CLAMP(y); | |
77 | report->field[0]->value[0] = 0x51; | |
78 | report->field[0]->value[1] = 0x08; | |
79 | report->field[0]->value[2] = x; | |
80 | report->field[0]->value[3] = y; | |
81 | dbg("(x, y)=(%04x, %04x)", x, y); | |
4916b3a5 | 82 | usbhid_submit_report(hid, report, USB_DIR_OUT); |
dc76c912 AH |
83 | break; |
84 | ||
85 | case FF_RUMBLE: | |
86 | right = effect->u.rumble.strong_magnitude; | |
87 | left = effect->u.rumble.weak_magnitude; | |
88 | right = right * 0xff / 0xffff; | |
89 | left = left * 0xff / 0xffff; | |
90 | CLAMP(left); | |
91 | CLAMP(right); | |
92 | report->field[0]->value[0] = 0x42; | |
93 | report->field[0]->value[1] = 0x00; | |
94 | report->field[0]->value[2] = left; | |
95 | report->field[0]->value[3] = right; | |
96 | dbg("(left, right)=(%04x, %04x)", left, right); | |
4916b3a5 | 97 | usbhid_submit_report(hid, report, USB_DIR_OUT); |
dc76c912 AH |
98 | break; |
99 | } | |
100 | return 0; | |
101 | } | |
102 | ||
1da177e4 LT |
103 | int hid_lgff_init(struct hid_device* hid) |
104 | { | |
dc76c912 AH |
105 | struct hid_input *hidinput = list_entry(hid->inputs.next, struct hid_input, list); |
106 | struct list_head *report_list = &hid->report_enum[HID_OUTPUT_REPORT].report_list; | |
107 | struct input_dev *dev = hidinput->input; | |
108 | struct hid_report *report; | |
109 | struct hid_field *field; | |
00a8691c | 110 | const signed short *ff_bits = ff_joystick; |
dc76c912 | 111 | int error; |
00a8691c | 112 | int i; |
1da177e4 LT |
113 | |
114 | /* Find the report to use */ | |
dc76c912 | 115 | if (list_empty(report_list)) { |
1da177e4 LT |
116 | err("No output report found"); |
117 | return -1; | |
118 | } | |
dc76c912 | 119 | |
1da177e4 | 120 | /* Check that the report looks ok */ |
dc76c912 | 121 | report = list_entry(report_list->next, struct hid_report, list); |
1da177e4 LT |
122 | if (!report) { |
123 | err("NULL output report"); | |
124 | return -1; | |
125 | } | |
dc76c912 | 126 | |
1da177e4 LT |
127 | field = report->field[0]; |
128 | if (!field) { | |
129 | err("NULL field"); | |
130 | return -1; | |
131 | } | |
132 | ||
dc76c912 AH |
133 | for (i = 0; i < ARRAY_SIZE(devices); i++) { |
134 | if (dev->id.vendor == devices[i].idVendor && | |
135 | dev->id.product == devices[i].idProduct) { | |
00a8691c | 136 | ff_bits = devices[i].ff; |
dc76c912 | 137 | break; |
1da177e4 | 138 | } |
1da177e4 | 139 | } |
1da177e4 | 140 | |
00a8691c DT |
141 | for (i = 0; ff_bits[i] >= 0; i++) |
142 | set_bit(ff_bits[i], dev->ffbit); | |
143 | ||
dc76c912 AH |
144 | error = input_ff_create_memless(dev, NULL, hid_lgff_play); |
145 | if (error) | |
146 | return error; | |
1da177e4 | 147 | |
dc76c912 | 148 | printk(KERN_INFO "Force feedback for Logitech force feedback devices by Johann Deneux <johann.deneux@it.uu.se>\n"); |
1da177e4 | 149 | |
1da177e4 LT |
150 | return 0; |
151 | } |