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1a59d1b8 | 1 | // SPDX-License-Identifier: GPL-2.0-or-later |
c0dbcc33 SK |
2 | /* |
3 | * Force feedback support for ACRUX game controllers | |
4 | * | |
5 | * From what I have gathered, these devices are mass produced in China | |
6 | * by several vendors. They often share the same design as the original | |
7 | * Xbox 360 controller. | |
8 | * | |
9 | * 1a34:0802 "ACRUX USB GAMEPAD 8116" | |
b55ebc27 | 10 | * - tested with an EXEQ EQ-PCU-02090 game controller. |
c0dbcc33 SK |
11 | * |
12 | * Copyright (c) 2010 Sergei Kolzun <x0r@dv-life.ru> | |
13 | */ | |
14 | ||
15 | /* | |
c0dbcc33 SK |
16 | */ |
17 | ||
18 | #include <linux/input.h> | |
19 | #include <linux/slab.h> | |
c0dbcc33 | 20 | #include <linux/hid.h> |
8f86a2c3 | 21 | #include <linux/module.h> |
c0dbcc33 SK |
22 | |
23 | #include "hid-ids.h" | |
0ae43810 DT |
24 | |
25 | #ifdef CONFIG_HID_ACRUX_FF | |
c0dbcc33 SK |
26 | |
27 | struct axff_device { | |
28 | struct hid_report *report; | |
29 | }; | |
30 | ||
31 | static int axff_play(struct input_dev *dev, void *data, struct ff_effect *effect) | |
32 | { | |
33 | struct hid_device *hid = input_get_drvdata(dev); | |
34 | struct axff_device *axff = data; | |
b55ebc27 SK |
35 | struct hid_report *report = axff->report; |
36 | int field_count = 0; | |
c0dbcc33 | 37 | int left, right; |
b55ebc27 | 38 | int i, j; |
c0dbcc33 SK |
39 | |
40 | left = effect->u.rumble.strong_magnitude; | |
41 | right = effect->u.rumble.weak_magnitude; | |
42 | ||
43 | dbg_hid("called with 0x%04x 0x%04x", left, right); | |
44 | ||
45 | left = left * 0xff / 0xffff; | |
46 | right = right * 0xff / 0xffff; | |
47 | ||
b55ebc27 SK |
48 | for (i = 0; i < report->maxfield; i++) { |
49 | for (j = 0; j < report->field[i]->report_count; j++) { | |
50 | report->field[i]->value[j] = | |
51 | field_count % 2 ? right : left; | |
52 | field_count++; | |
53 | } | |
54 | } | |
55 | ||
c0dbcc33 | 56 | dbg_hid("running with 0x%02x 0x%02x", left, right); |
d8814272 | 57 | hid_hw_request(hid, axff->report, HID_REQ_SET_REPORT); |
c0dbcc33 SK |
58 | |
59 | return 0; | |
60 | } | |
61 | ||
62 | static int axff_init(struct hid_device *hid) | |
63 | { | |
64 | struct axff_device *axff; | |
65 | struct hid_report *report; | |
66 | struct hid_input *hidinput = list_first_entry(&hid->inputs, struct hid_input, list); | |
67 | struct list_head *report_list =&hid->report_enum[HID_OUTPUT_REPORT].report_list; | |
68 | struct input_dev *dev = hidinput->input; | |
b55ebc27 SK |
69 | int field_count = 0; |
70 | int i, j; | |
c0dbcc33 SK |
71 | int error; |
72 | ||
73 | if (list_empty(report_list)) { | |
4291ee30 | 74 | hid_err(hid, "no output reports found\n"); |
c0dbcc33 SK |
75 | return -ENODEV; |
76 | } | |
77 | ||
78 | report = list_first_entry(report_list, struct hid_report, list); | |
b55ebc27 SK |
79 | for (i = 0; i < report->maxfield; i++) { |
80 | for (j = 0; j < report->field[i]->report_count; j++) { | |
81 | report->field[i]->value[j] = 0x00; | |
82 | field_count++; | |
83 | } | |
84 | } | |
c0dbcc33 | 85 | |
e17f5d76 | 86 | if (field_count < 4 && hid->product != 0xf705) { |
b55ebc27 SK |
87 | hid_err(hid, "not enough fields in the report: %d\n", |
88 | field_count); | |
c0dbcc33 SK |
89 | return -ENODEV; |
90 | } | |
91 | ||
92 | axff = kzalloc(sizeof(struct axff_device), GFP_KERNEL); | |
93 | if (!axff) | |
94 | return -ENOMEM; | |
95 | ||
96 | set_bit(FF_RUMBLE, dev->ffbit); | |
97 | ||
98 | error = input_ff_create_memless(dev, axff, axff_play); | |
99 | if (error) | |
100 | goto err_free_mem; | |
101 | ||
102 | axff->report = report; | |
d8814272 | 103 | hid_hw_request(hid, axff->report, HID_REQ_SET_REPORT); |
c0dbcc33 | 104 | |
b55ebc27 | 105 | hid_info(hid, "Force Feedback for ACRUX game controllers by Sergei Kolzun <x0r@dv-life.ru>\n"); |
c0dbcc33 SK |
106 | |
107 | return 0; | |
108 | ||
109 | err_free_mem: | |
110 | kfree(axff); | |
111 | return error; | |
112 | } | |
0ae43810 DT |
113 | #else |
114 | static inline int axff_init(struct hid_device *hid) | |
115 | { | |
116 | return 0; | |
117 | } | |
118 | #endif | |
c0dbcc33 SK |
119 | |
120 | static int ax_probe(struct hid_device *hdev, const struct hid_device_id *id) | |
121 | { | |
122 | int error; | |
123 | ||
4291ee30 | 124 | dev_dbg(&hdev->dev, "ACRUX HID hardware probe...\n"); |
c0dbcc33 SK |
125 | |
126 | error = hid_parse(hdev); | |
127 | if (error) { | |
4291ee30 | 128 | hid_err(hdev, "parse failed\n"); |
c0dbcc33 SK |
129 | return error; |
130 | } | |
131 | ||
132 | error = hid_hw_start(hdev, HID_CONNECT_DEFAULT & ~HID_CONNECT_FF); | |
133 | if (error) { | |
4291ee30 | 134 | hid_err(hdev, "hw start failed\n"); |
c0dbcc33 SK |
135 | return error; |
136 | } | |
137 | ||
138 | error = axff_init(hdev); | |
139 | if (error) { | |
140 | /* | |
141 | * Do not fail device initialization completely as device | |
142 | * may still be partially operable, just warn. | |
143 | */ | |
4291ee30 | 144 | hid_warn(hdev, |
c0dbcc33 SK |
145 | "Failed to enable force feedback support, error: %d\n", |
146 | error); | |
147 | } | |
148 | ||
0ae43810 DT |
149 | /* |
150 | * We need to start polling device right away, otherwise | |
151 | * it will go into a coma. | |
152 | */ | |
153 | error = hid_hw_open(hdev); | |
154 | if (error) { | |
155 | dev_err(&hdev->dev, "hw open failed\n"); | |
b30d89d1 | 156 | hid_hw_stop(hdev); |
0ae43810 DT |
157 | return error; |
158 | } | |
159 | ||
c0dbcc33 SK |
160 | return 0; |
161 | } | |
162 | ||
0ae43810 DT |
163 | static void ax_remove(struct hid_device *hdev) |
164 | { | |
165 | hid_hw_close(hdev); | |
166 | hid_hw_stop(hdev); | |
167 | } | |
168 | ||
c0dbcc33 SK |
169 | static const struct hid_device_id ax_devices[] = { |
170 | { HID_USB_DEVICE(USB_VENDOR_ID_ACRUX, 0x0802), }, | |
e17f5d76 | 171 | { HID_USB_DEVICE(USB_VENDOR_ID_ACRUX, 0xf705), }, |
c0dbcc33 SK |
172 | { } |
173 | }; | |
174 | MODULE_DEVICE_TABLE(hid, ax_devices); | |
175 | ||
176 | static struct hid_driver ax_driver = { | |
0ae43810 DT |
177 | .name = "acrux", |
178 | .id_table = ax_devices, | |
179 | .probe = ax_probe, | |
180 | .remove = ax_remove, | |
c0dbcc33 | 181 | }; |
f425458e | 182 | module_hid_driver(ax_driver); |
c0dbcc33 SK |
183 | |
184 | MODULE_AUTHOR("Sergei Kolzun"); | |
185 | MODULE_DESCRIPTION("Force feedback support for ACRUX game controllers"); | |
186 | MODULE_LICENSE("GPL"); |