1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3 * Force feedback support for SmartJoy PLUS PS2->USB adapter
4 *
5 * Copyright (c) 2009 Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
6 *
7 * Based of hid-pl.c and hid-gaff.c
8 * Copyright (c) 2007, 2009 Anssi Hannula <anssi.hannula@gmail.com>
9 * Copyright (c) 2008 Lukasz Lubojanski <lukasz@lubojanski.info>
10 */
11
12 /*
13 */
14
15 /* #define DEBUG */
16
17 #include <linux/input.h>
18 #include <linux/slab.h>
19 #include <linux/hid.h>
20 #include <linux/module.h>
21 #include "hid-ids.h"
22
23 #ifdef CONFIG_SMARTJOYPLUS_FF
24
25 struct sjoyff_device {
26 struct hid_report *report;
27 };
28
hid_sjoyff_play(struct input_dev * dev,void * data,struct ff_effect * effect)29 static int hid_sjoyff_play(struct input_dev *dev, void *data,
30 struct ff_effect *effect)
31 {
32 struct hid_device *hid = input_get_drvdata(dev);
33 struct sjoyff_device *sjoyff = data;
34 u32 left, right;
35
36 left = effect->u.rumble.strong_magnitude;
37 right = effect->u.rumble.weak_magnitude;
38 dev_dbg(&dev->dev, "called with 0x%08x 0x%08x\n", left, right);
39
40 left = left * 0xff / 0xffff;
41 right = (right != 0); /* on/off only */
42
43 sjoyff->report->field[0]->value[1] = right;
44 sjoyff->report->field[0]->value[2] = left;
45 dev_dbg(&dev->dev, "running with 0x%02x 0x%02x\n", left, right);
46 hid_hw_request(hid, sjoyff->report, HID_REQ_SET_REPORT);
47
48 return 0;
49 }
50
sjoyff_init(struct hid_device * hid)51 static int sjoyff_init(struct hid_device *hid)
52 {
53 struct sjoyff_device *sjoyff;
54 struct hid_report *report;
55 struct hid_input *hidinput;
56 struct list_head *report_list =
57 &hid->report_enum[HID_OUTPUT_REPORT].report_list;
58 struct list_head *report_ptr = report_list;
59 struct input_dev *dev;
60 int error;
61
62 if (list_empty(report_list)) {
63 hid_err(hid, "no output reports found\n");
64 return -ENODEV;
65 }
66
67 list_for_each_entry(hidinput, &hid->inputs, list) {
68 report_ptr = report_ptr->next;
69
70 if (report_ptr == report_list) {
71 hid_err(hid, "required output report is missing\n");
72 return -ENODEV;
73 }
74
75 report = list_entry(report_ptr, struct hid_report, list);
76 if (report->maxfield < 1) {
77 hid_err(hid, "no fields in the report\n");
78 return -ENODEV;
79 }
80
81 if (report->field[0]->report_count < 3) {
82 hid_err(hid, "not enough values in the field\n");
83 return -ENODEV;
84 }
85
86 sjoyff = kzalloc(sizeof(struct sjoyff_device), GFP_KERNEL);
87 if (!sjoyff)
88 return -ENOMEM;
89
90 dev = hidinput->input;
91
92 set_bit(FF_RUMBLE, dev->ffbit);
93
94 error = input_ff_create_memless(dev, sjoyff, hid_sjoyff_play);
95 if (error) {
96 kfree(sjoyff);
97 return error;
98 }
99
100 sjoyff->report = report;
101 sjoyff->report->field[0]->value[0] = 0x01;
102 sjoyff->report->field[0]->value[1] = 0x00;
103 sjoyff->report->field[0]->value[2] = 0x00;
104 hid_hw_request(hid, sjoyff->report, HID_REQ_SET_REPORT);
105 }
106
107 hid_info(hid, "Force feedback for SmartJoy PLUS PS2/USB adapter\n");
108
109 return 0;
110 }
111 #else
sjoyff_init(struct hid_device * hid)112 static inline int sjoyff_init(struct hid_device *hid)
113 {
114 return 0;
115 }
116 #endif
117
sjoy_probe(struct hid_device * hdev,const struct hid_device_id * id)118 static int sjoy_probe(struct hid_device *hdev, const struct hid_device_id *id)
119 {
120 int ret;
121
122 hdev->quirks |= id->driver_data;
123
124 ret = hid_parse(hdev);
125 if (ret) {
126 hid_err(hdev, "parse failed\n");
127 goto err;
128 }
129
130 ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT & ~HID_CONNECT_FF);
131 if (ret) {
132 hid_err(hdev, "hw start failed\n");
133 goto err;
134 }
135
136 sjoyff_init(hdev);
137
138 return 0;
139 err:
140 return ret;
141 }
142
143 static const struct hid_device_id sjoy_devices[] = {
144 { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP_LTD, USB_DEVICE_ID_SUPER_JOY_BOX_3_PRO),
145 .driver_data = HID_QUIRK_NOGET },
146 { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP_LTD, USB_DEVICE_ID_SUPER_DUAL_BOX_PRO),
147 .driver_data = HID_QUIRK_MULTI_INPUT | HID_QUIRK_NOGET |
148 HID_QUIRK_SKIP_OUTPUT_REPORTS },
149 { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP_LTD, USB_DEVICE_ID_SUPER_JOY_BOX_5_PRO),
150 .driver_data = HID_QUIRK_MULTI_INPUT | HID_QUIRK_NOGET |
151 HID_QUIRK_SKIP_OUTPUT_REPORTS },
152 { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_SMARTJOY_PLUS) },
153 { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_SUPER_JOY_BOX_3) },
154 { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_DUAL_USB_JOYPAD),
155 .driver_data = HID_QUIRK_MULTI_INPUT |
156 HID_QUIRK_SKIP_OUTPUT_REPORTS },
157 { HID_USB_DEVICE(USB_VENDOR_ID_PLAYDOTCOM, USB_DEVICE_ID_PLAYDOTCOM_EMS_USBII),
158 .driver_data = HID_QUIRK_MULTI_INPUT |
159 HID_QUIRK_SKIP_OUTPUT_REPORTS },
160 { }
161 };
162 MODULE_DEVICE_TABLE(hid, sjoy_devices);
163
164 static struct hid_driver sjoy_driver = {
165 .name = "smartjoyplus",
166 .id_table = sjoy_devices,
167 .probe = sjoy_probe,
168 };
169 module_hid_driver(sjoy_driver);
170
171 MODULE_DESCRIPTION("Force feedback support for SmartJoy PLUS PS2->USB adapter");
172 MODULE_LICENSE("GPL");
173 MODULE_AUTHOR("Jussi Kivilinna");
174
175