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Commit | Line | Data |
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bb3caf7f AH |
1 | /* |
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 | ||
987fbc1f | 24 | #include <linux/hid.h> |
bb3caf7f | 25 | #include <linux/input.h> |
5a0e3ad6 | 26 | #include <linux/slab.h> |
8f86a2c3 | 27 | #include <linux/module.h> |
987fbc1f JS |
28 | |
29 | #include "hid-ids.h" | |
30 | ||
0f6f4319 | 31 | #ifdef CONFIG_ZEROPLUS_FF |
bb3caf7f AH |
32 | |
33 | struct zpff_device { | |
34 | struct hid_report *report; | |
35 | }; | |
36 | ||
987fbc1f | 37 | static int zpff_play(struct input_dev *dev, void *data, |
bb3caf7f AH |
38 | struct ff_effect *effect) |
39 | { | |
e0712985 | 40 | struct hid_device *hid = input_get_drvdata(dev); |
bb3caf7f AH |
41 | 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; | |
58037eb9 | 52 | dbg_hid("called with 0x%04x 0x%04x\n", left, right); |
bb3caf7f AH |
53 | |
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; | |
58037eb9 | 59 | dbg_hid("running with 0x%02x 0x%02x\n", left, right); |
d8814272 | 60 | hid_hw_request(hid, zpff->report, HID_REQ_SET_REPORT); |
bb3caf7f AH |
61 | |
62 | return 0; | |
63 | } | |
64 | ||
987fbc1f | 65 | static int zpff_init(struct hid_device *hid) |
bb3caf7f AH |
66 | { |
67 | struct zpff_device *zpff; | |
68 | struct hid_report *report; | |
29d944cd AS |
69 | struct hid_input *hidinput; |
70 | struct input_dev *dev; | |
78214e81 | 71 | int i, error; |
bb3caf7f | 72 | |
29d944cd AS |
73 | if (list_empty(&hid->inputs)) { |
74 | hid_err(hid, "no inputs found\n"); | |
75 | return -ENODEV; | |
76 | } | |
77 | hidinput = list_entry(hid->inputs.next, struct hid_input, list); | |
78 | dev = hidinput->input; | |
79 | ||
78214e81 KC |
80 | for (i = 0; i < 4; i++) { |
81 | report = hid_validate_values(hid, HID_OUTPUT_REPORT, 0, i, 1); | |
82 | if (!report) | |
83 | return -ENODEV; | |
bb3caf7f AH |
84 | } |
85 | ||
86 | zpff = kzalloc(sizeof(struct zpff_device), GFP_KERNEL); | |
87 | if (!zpff) | |
88 | return -ENOMEM; | |
89 | ||
90 | set_bit(FF_RUMBLE, dev->ffbit); | |
91 | ||
987fbc1f | 92 | error = input_ff_create_memless(dev, zpff, zpff_play); |
bb3caf7f AH |
93 | if (error) { |
94 | kfree(zpff); | |
95 | return error; | |
96 | } | |
97 | ||
98 | zpff->report = report; | |
99 | zpff->report->field[0]->value[0] = 0x00; | |
100 | zpff->report->field[1]->value[0] = 0x02; | |
101 | zpff->report->field[2]->value[0] = 0x00; | |
102 | zpff->report->field[3]->value[0] = 0x00; | |
d8814272 | 103 | hid_hw_request(hid, zpff->report, HID_REQ_SET_REPORT); |
bb3caf7f | 104 | |
4291ee30 | 105 | hid_info(hid, "force feedback for Zeroplus based devices by Anssi Hannula <anssi.hannula@gmail.com>\n"); |
bb3caf7f AH |
106 | |
107 | return 0; | |
108 | } | |
0f6f4319 JK |
109 | #else |
110 | static inline int zpff_init(struct hid_device *hid) | |
111 | { | |
112 | return 0; | |
113 | } | |
114 | #endif | |
987fbc1f JS |
115 | |
116 | static int zp_probe(struct hid_device *hdev, const struct hid_device_id *id) | |
117 | { | |
118 | int ret; | |
119 | ||
120 | ret = hid_parse(hdev); | |
121 | if (ret) { | |
4291ee30 | 122 | hid_err(hdev, "parse failed\n"); |
987fbc1f JS |
123 | goto err; |
124 | } | |
125 | ||
126 | ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT & ~HID_CONNECT_FF); | |
127 | if (ret) { | |
4291ee30 | 128 | hid_err(hdev, "hw start failed\n"); |
987fbc1f JS |
129 | goto err; |
130 | } | |
131 | ||
132 | zpff_init(hdev); | |
133 | ||
134 | return 0; | |
135 | err: | |
136 | return ret; | |
137 | } | |
138 | ||
139 | static const struct hid_device_id zp_devices[] = { | |
140 | { HID_USB_DEVICE(USB_VENDOR_ID_ZEROPLUS, 0x0005) }, | |
141 | { HID_USB_DEVICE(USB_VENDOR_ID_ZEROPLUS, 0x0030) }, | |
142 | { } | |
143 | }; | |
144 | MODULE_DEVICE_TABLE(hid, zp_devices); | |
145 | ||
146 | static struct hid_driver zp_driver = { | |
147 | .name = "zeroplus", | |
148 | .id_table = zp_devices, | |
149 | .probe = zp_probe, | |
150 | }; | |
f425458e | 151 | module_hid_driver(zp_driver); |
987fbc1f | 152 | |
987fbc1f | 153 | MODULE_LICENSE("GPL"); |