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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> |
bb3caf7f | 27 | #include <linux/usb.h> |
8f86a2c3 | 28 | #include <linux/module.h> |
987fbc1f JS |
29 | |
30 | #include "hid-ids.h" | |
31 | ||
0f6f4319 | 32 | #ifdef CONFIG_ZEROPLUS_FF |
987fbc1f | 33 | #include "usbhid/usbhid.h" |
bb3caf7f AH |
34 | |
35 | struct zpff_device { | |
36 | struct hid_report *report; | |
37 | }; | |
38 | ||
987fbc1f | 39 | static int zpff_play(struct input_dev *dev, void *data, |
bb3caf7f AH |
40 | struct ff_effect *effect) |
41 | { | |
e0712985 | 42 | struct hid_device *hid = input_get_drvdata(dev); |
bb3caf7f AH |
43 | struct zpff_device *zpff = data; |
44 | int left, right; | |
45 | ||
46 | /* | |
47 | * The following is specified the other way around in the Zeroplus | |
48 | * datasheet but the order below is correct for the XFX Executioner; | |
49 | * however it is possible that the XFX Executioner is an exception | |
50 | */ | |
51 | ||
52 | left = effect->u.rumble.strong_magnitude; | |
53 | right = effect->u.rumble.weak_magnitude; | |
58037eb9 | 54 | dbg_hid("called with 0x%04x 0x%04x\n", left, right); |
bb3caf7f AH |
55 | |
56 | left = left * 0x7f / 0xffff; | |
57 | right = right * 0x7f / 0xffff; | |
58 | ||
59 | zpff->report->field[2]->value[0] = left; | |
60 | zpff->report->field[3]->value[0] = right; | |
58037eb9 | 61 | dbg_hid("running with 0x%02x 0x%02x\n", left, right); |
4916b3a5 | 62 | usbhid_submit_report(hid, zpff->report, USB_DIR_OUT); |
bb3caf7f AH |
63 | |
64 | return 0; | |
65 | } | |
66 | ||
987fbc1f | 67 | static int zpff_init(struct hid_device *hid) |
bb3caf7f AH |
68 | { |
69 | struct zpff_device *zpff; | |
70 | struct hid_report *report; | |
71 | struct hid_input *hidinput = list_entry(hid->inputs.next, | |
72 | struct hid_input, list); | |
73 | struct list_head *report_list = | |
74 | &hid->report_enum[HID_OUTPUT_REPORT].report_list; | |
75 | struct input_dev *dev = hidinput->input; | |
76 | int error; | |
77 | ||
78 | if (list_empty(report_list)) { | |
4291ee30 | 79 | hid_err(hid, "no output report found\n"); |
bb3caf7f AH |
80 | return -ENODEV; |
81 | } | |
82 | ||
83 | report = list_entry(report_list->next, struct hid_report, list); | |
84 | ||
85 | if (report->maxfield < 4) { | |
4291ee30 | 86 | hid_err(hid, "not enough fields in report\n"); |
bb3caf7f AH |
87 | return -ENODEV; |
88 | } | |
89 | ||
90 | zpff = kzalloc(sizeof(struct zpff_device), GFP_KERNEL); | |
91 | if (!zpff) | |
92 | return -ENOMEM; | |
93 | ||
94 | set_bit(FF_RUMBLE, dev->ffbit); | |
95 | ||
987fbc1f | 96 | error = input_ff_create_memless(dev, zpff, zpff_play); |
bb3caf7f AH |
97 | if (error) { |
98 | kfree(zpff); | |
99 | return error; | |
100 | } | |
101 | ||
102 | zpff->report = report; | |
103 | zpff->report->field[0]->value[0] = 0x00; | |
104 | zpff->report->field[1]->value[0] = 0x02; | |
105 | zpff->report->field[2]->value[0] = 0x00; | |
106 | zpff->report->field[3]->value[0] = 0x00; | |
4916b3a5 | 107 | usbhid_submit_report(hid, zpff->report, USB_DIR_OUT); |
bb3caf7f | 108 | |
4291ee30 | 109 | hid_info(hid, "force feedback for Zeroplus based devices by Anssi Hannula <anssi.hannula@gmail.com>\n"); |
bb3caf7f AH |
110 | |
111 | return 0; | |
112 | } | |
0f6f4319 JK |
113 | #else |
114 | static inline int zpff_init(struct hid_device *hid) | |
115 | { | |
116 | return 0; | |
117 | } | |
118 | #endif | |
987fbc1f JS |
119 | |
120 | static int zp_probe(struct hid_device *hdev, const struct hid_device_id *id) | |
121 | { | |
122 | int ret; | |
123 | ||
124 | ret = hid_parse(hdev); | |
125 | if (ret) { | |
4291ee30 | 126 | hid_err(hdev, "parse failed\n"); |
987fbc1f JS |
127 | goto err; |
128 | } | |
129 | ||
130 | ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT & ~HID_CONNECT_FF); | |
131 | if (ret) { | |
4291ee30 | 132 | hid_err(hdev, "hw start failed\n"); |
987fbc1f JS |
133 | goto err; |
134 | } | |
135 | ||
136 | zpff_init(hdev); | |
137 | ||
138 | return 0; | |
139 | err: | |
140 | return ret; | |
141 | } | |
142 | ||
143 | static const struct hid_device_id zp_devices[] = { | |
144 | { HID_USB_DEVICE(USB_VENDOR_ID_ZEROPLUS, 0x0005) }, | |
145 | { HID_USB_DEVICE(USB_VENDOR_ID_ZEROPLUS, 0x0030) }, | |
146 | { } | |
147 | }; | |
148 | MODULE_DEVICE_TABLE(hid, zp_devices); | |
149 | ||
150 | static struct hid_driver zp_driver = { | |
151 | .name = "zeroplus", | |
152 | .id_table = zp_devices, | |
153 | .probe = zp_probe, | |
154 | }; | |
155 | ||
a24f423b | 156 | static int __init zp_init(void) |
987fbc1f JS |
157 | { |
158 | return hid_register_driver(&zp_driver); | |
159 | } | |
160 | ||
a24f423b | 161 | static void __exit zp_exit(void) |
987fbc1f JS |
162 | { |
163 | hid_unregister_driver(&zp_driver); | |
164 | } | |
165 | ||
166 | module_init(zp_init); | |
167 | module_exit(zp_exit); | |
168 | MODULE_LICENSE("GPL"); |