Commit | Line | Data |
---|---|---|
1a59d1b8 | 1 | // SPDX-License-Identifier: GPL-2.0-or-later |
bb3caf7f AH |
2 | /* |
3 | * Force feedback support for Zeroplus based devices | |
4 | * | |
5 | * Copyright (c) 2005, 2006 Anssi Hannula <anssi.hannula@gmail.com> | |
6 | */ | |
7 | ||
8 | /* | |
bb3caf7f AH |
9 | */ |
10 | ||
11 | ||
987fbc1f | 12 | #include <linux/hid.h> |
bb3caf7f | 13 | #include <linux/input.h> |
5a0e3ad6 | 14 | #include <linux/slab.h> |
8f86a2c3 | 15 | #include <linux/module.h> |
987fbc1f JS |
16 | |
17 | #include "hid-ids.h" | |
18 | ||
0f6f4319 | 19 | #ifdef CONFIG_ZEROPLUS_FF |
bb3caf7f AH |
20 | |
21 | struct zpff_device { | |
22 | struct hid_report *report; | |
23 | }; | |
24 | ||
987fbc1f | 25 | static int zpff_play(struct input_dev *dev, void *data, |
bb3caf7f AH |
26 | struct ff_effect *effect) |
27 | { | |
e0712985 | 28 | struct hid_device *hid = input_get_drvdata(dev); |
bb3caf7f AH |
29 | struct zpff_device *zpff = data; |
30 | int left, right; | |
31 | ||
32 | /* | |
33 | * The following is specified the other way around in the Zeroplus | |
34 | * datasheet but the order below is correct for the XFX Executioner; | |
35 | * however it is possible that the XFX Executioner is an exception | |
36 | */ | |
37 | ||
38 | left = effect->u.rumble.strong_magnitude; | |
39 | right = effect->u.rumble.weak_magnitude; | |
58037eb9 | 40 | dbg_hid("called with 0x%04x 0x%04x\n", left, right); |
bb3caf7f AH |
41 | |
42 | left = left * 0x7f / 0xffff; | |
43 | right = right * 0x7f / 0xffff; | |
44 | ||
45 | zpff->report->field[2]->value[0] = left; | |
46 | zpff->report->field[3]->value[0] = right; | |
58037eb9 | 47 | dbg_hid("running with 0x%02x 0x%02x\n", left, right); |
d8814272 | 48 | hid_hw_request(hid, zpff->report, HID_REQ_SET_REPORT); |
bb3caf7f AH |
49 | |
50 | return 0; | |
51 | } | |
52 | ||
987fbc1f | 53 | static int zpff_init(struct hid_device *hid) |
bb3caf7f AH |
54 | { |
55 | struct zpff_device *zpff; | |
56 | struct hid_report *report; | |
d9d4b1e4 AS |
57 | struct hid_input *hidinput; |
58 | struct input_dev *dev; | |
78214e81 | 59 | int i, error; |
bb3caf7f | 60 | |
d9d4b1e4 AS |
61 | if (list_empty(&hid->inputs)) { |
62 | hid_err(hid, "no inputs found\n"); | |
63 | return -ENODEV; | |
64 | } | |
65 | hidinput = list_entry(hid->inputs.next, struct hid_input, list); | |
66 | dev = hidinput->input; | |
67 | ||
78214e81 KC |
68 | for (i = 0; i < 4; i++) { |
69 | report = hid_validate_values(hid, HID_OUTPUT_REPORT, 0, i, 1); | |
70 | if (!report) | |
71 | return -ENODEV; | |
bb3caf7f AH |
72 | } |
73 | ||
74 | zpff = kzalloc(sizeof(struct zpff_device), GFP_KERNEL); | |
75 | if (!zpff) | |
76 | return -ENOMEM; | |
77 | ||
78 | set_bit(FF_RUMBLE, dev->ffbit); | |
79 | ||
987fbc1f | 80 | error = input_ff_create_memless(dev, zpff, zpff_play); |
bb3caf7f AH |
81 | if (error) { |
82 | kfree(zpff); | |
83 | return error; | |
84 | } | |
85 | ||
86 | zpff->report = report; | |
87 | zpff->report->field[0]->value[0] = 0x00; | |
88 | zpff->report->field[1]->value[0] = 0x02; | |
89 | zpff->report->field[2]->value[0] = 0x00; | |
90 | zpff->report->field[3]->value[0] = 0x00; | |
d8814272 | 91 | hid_hw_request(hid, zpff->report, HID_REQ_SET_REPORT); |
bb3caf7f | 92 | |
4291ee30 | 93 | hid_info(hid, "force feedback for Zeroplus based devices by Anssi Hannula <anssi.hannula@gmail.com>\n"); |
bb3caf7f AH |
94 | |
95 | return 0; | |
96 | } | |
0f6f4319 JK |
97 | #else |
98 | static inline int zpff_init(struct hid_device *hid) | |
99 | { | |
100 | return 0; | |
101 | } | |
102 | #endif | |
987fbc1f JS |
103 | |
104 | static int zp_probe(struct hid_device *hdev, const struct hid_device_id *id) | |
105 | { | |
106 | int ret; | |
107 | ||
108 | ret = hid_parse(hdev); | |
109 | if (ret) { | |
4291ee30 | 110 | hid_err(hdev, "parse failed\n"); |
987fbc1f JS |
111 | goto err; |
112 | } | |
113 | ||
114 | ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT & ~HID_CONNECT_FF); | |
115 | if (ret) { | |
4291ee30 | 116 | hid_err(hdev, "hw start failed\n"); |
987fbc1f JS |
117 | goto err; |
118 | } | |
119 | ||
120 | zpff_init(hdev); | |
121 | ||
122 | return 0; | |
123 | err: | |
124 | return ret; | |
125 | } | |
126 | ||
127 | static const struct hid_device_id zp_devices[] = { | |
128 | { HID_USB_DEVICE(USB_VENDOR_ID_ZEROPLUS, 0x0005) }, | |
129 | { HID_USB_DEVICE(USB_VENDOR_ID_ZEROPLUS, 0x0030) }, | |
130 | { } | |
131 | }; | |
132 | MODULE_DEVICE_TABLE(hid, zp_devices); | |
133 | ||
134 | static struct hid_driver zp_driver = { | |
135 | .name = "zeroplus", | |
136 | .id_table = zp_devices, | |
137 | .probe = zp_probe, | |
138 | }; | |
f425458e | 139 | module_hid_driver(zp_driver); |
987fbc1f | 140 | |
987fbc1f | 141 | MODULE_LICENSE("GPL"); |