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 | ||
4291ee30 JP |
30 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
31 | ||
1da177e4 | 32 | #include <linux/input.h> |
1da177e4 | 33 | #include <linux/usb.h> |
dde5845a | 34 | #include <linux/hid.h> |
606bd0a8 JS |
35 | |
36 | #include "usbhid/usbhid.h" | |
37 | #include "hid-lg.h" | |
1da177e4 | 38 | |
f9f852df | 39 | struct dev_type { |
1da177e4 LT |
40 | u16 idVendor; |
41 | u16 idProduct; | |
dc76c912 | 42 | const signed short *ff; |
1da177e4 LT |
43 | }; |
44 | ||
dc76c912 | 45 | static const signed short ff_rumble[] = { |
1da177e4 LT |
46 | FF_RUMBLE, |
47 | -1 | |
48 | }; | |
49 | ||
dc76c912 | 50 | static const signed short ff_joystick[] = { |
1da177e4 LT |
51 | FF_CONSTANT, |
52 | -1 | |
53 | }; | |
54 | ||
f0bca459 SB |
55 | static const signed short ff_joystick_ac[] = { |
56 | FF_CONSTANT, | |
57 | FF_AUTOCENTER, | |
58 | -1 | |
59 | }; | |
60 | ||
f9f852df | 61 | static const struct dev_type devices[] = { |
dc76c912 AH |
62 | { 0x046d, 0xc211, ff_rumble }, |
63 | { 0x046d, 0xc219, ff_rumble }, | |
64 | { 0x046d, 0xc283, ff_joystick }, | |
f0bca459 | 65 | { 0x046d, 0xc286, ff_joystick_ac }, |
74f292ca | 66 | { 0x046d, 0xc287, ff_joystick_ac }, |
fd30ea8c | 67 | { 0x046d, 0xc293, ff_joystick }, |
130b1ab3 | 68 | { 0x046d, 0xc295, ff_joystick }, |
1da177e4 LT |
69 | }; |
70 | ||
dc76c912 AH |
71 | static int hid_lgff_play(struct input_dev *dev, void *data, struct ff_effect *effect) |
72 | { | |
e0712985 | 73 | struct hid_device *hid = input_get_drvdata(dev); |
dc76c912 AH |
74 | struct list_head *report_list = &hid->report_enum[HID_OUTPUT_REPORT].report_list; |
75 | struct hid_report *report = list_entry(report_list->next, struct hid_report, list); | |
76 | int x, y; | |
77 | unsigned int left, right; | |
78 | ||
79 | #define CLAMP(x) if (x < 0) x = 0; if (x > 0xff) x = 0xff | |
80 | ||
81 | switch (effect->type) { | |
82 | case FF_CONSTANT: | |
83 | x = effect->u.ramp.start_level + 0x7f; /* 0x7f is center */ | |
84 | y = effect->u.ramp.end_level + 0x7f; | |
85 | CLAMP(x); | |
86 | CLAMP(y); | |
87 | report->field[0]->value[0] = 0x51; | |
88 | report->field[0]->value[1] = 0x08; | |
89 | report->field[0]->value[2] = x; | |
90 | report->field[0]->value[3] = y; | |
58037eb9 | 91 | dbg_hid("(x, y)=(%04x, %04x)\n", x, y); |
4916b3a5 | 92 | usbhid_submit_report(hid, report, USB_DIR_OUT); |
dc76c912 AH |
93 | break; |
94 | ||
95 | case FF_RUMBLE: | |
96 | right = effect->u.rumble.strong_magnitude; | |
97 | left = effect->u.rumble.weak_magnitude; | |
98 | right = right * 0xff / 0xffff; | |
99 | left = left * 0xff / 0xffff; | |
100 | CLAMP(left); | |
101 | CLAMP(right); | |
102 | report->field[0]->value[0] = 0x42; | |
103 | report->field[0]->value[1] = 0x00; | |
104 | report->field[0]->value[2] = left; | |
105 | report->field[0]->value[3] = right; | |
58037eb9 | 106 | dbg_hid("(left, right)=(%04x, %04x)\n", left, right); |
4916b3a5 | 107 | usbhid_submit_report(hid, report, USB_DIR_OUT); |
dc76c912 AH |
108 | break; |
109 | } | |
110 | return 0; | |
111 | } | |
112 | ||
2bea94db SB |
113 | static void hid_lgff_set_autocenter(struct input_dev *dev, u16 magnitude) |
114 | { | |
115 | struct hid_device *hid = input_get_drvdata(dev); | |
116 | struct list_head *report_list = &hid->report_enum[HID_OUTPUT_REPORT].report_list; | |
117 | struct hid_report *report = list_entry(report_list->next, struct hid_report, list); | |
118 | __s32 *value = report->field[0]->value; | |
119 | magnitude = (magnitude >> 12) & 0xf; | |
120 | *value++ = 0xfe; | |
121 | *value++ = 0x0d; | |
122 | *value++ = magnitude; /* clockwise strength */ | |
123 | *value++ = magnitude; /* counter-clockwise strength */ | |
124 | *value++ = 0x80; | |
125 | *value++ = 0x00; | |
126 | *value = 0x00; | |
127 | usbhid_submit_report(hid, report, USB_DIR_OUT); | |
128 | } | |
129 | ||
606bd0a8 | 130 | int lgff_init(struct hid_device* hid) |
1da177e4 | 131 | { |
dc76c912 AH |
132 | struct hid_input *hidinput = list_entry(hid->inputs.next, struct hid_input, list); |
133 | struct list_head *report_list = &hid->report_enum[HID_OUTPUT_REPORT].report_list; | |
134 | struct input_dev *dev = hidinput->input; | |
135 | struct hid_report *report; | |
136 | struct hid_field *field; | |
00a8691c | 137 | const signed short *ff_bits = ff_joystick; |
dc76c912 | 138 | int error; |
00a8691c | 139 | int i; |
1da177e4 LT |
140 | |
141 | /* Find the report to use */ | |
dc76c912 | 142 | if (list_empty(report_list)) { |
4291ee30 | 143 | hid_err(hid, "No output report found\n"); |
1da177e4 LT |
144 | return -1; |
145 | } | |
dc76c912 | 146 | |
1da177e4 | 147 | /* Check that the report looks ok */ |
dc76c912 | 148 | report = list_entry(report_list->next, struct hid_report, list); |
1da177e4 LT |
149 | field = report->field[0]; |
150 | if (!field) { | |
4291ee30 | 151 | hid_err(hid, "NULL field\n"); |
1da177e4 LT |
152 | return -1; |
153 | } | |
154 | ||
dc76c912 AH |
155 | for (i = 0; i < ARRAY_SIZE(devices); i++) { |
156 | if (dev->id.vendor == devices[i].idVendor && | |
157 | dev->id.product == devices[i].idProduct) { | |
00a8691c | 158 | ff_bits = devices[i].ff; |
dc76c912 | 159 | break; |
1da177e4 | 160 | } |
1da177e4 | 161 | } |
1da177e4 | 162 | |
00a8691c DT |
163 | for (i = 0; ff_bits[i] >= 0; i++) |
164 | set_bit(ff_bits[i], dev->ffbit); | |
165 | ||
dc76c912 AH |
166 | error = input_ff_create_memless(dev, NULL, hid_lgff_play); |
167 | if (error) | |
168 | return error; | |
1da177e4 | 169 | |
2bea94db SB |
170 | if ( test_bit(FF_AUTOCENTER, dev->ffbit) ) |
171 | dev->ff->set_autocenter = hid_lgff_set_autocenter; | |
172 | ||
4291ee30 | 173 | pr_info("Force feedback for Logitech force feedback devices by Johann Deneux <johann.deneux@it.uu.se>\n"); |
1da177e4 | 174 | |
1da177e4 LT |
175 | return 0; |
176 | } |