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
25struct sjoyff_device {
26	struct hid_report *report;
27};
28
29static 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
51static 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
112static inline int sjoyff_init(struct hid_device *hid)
113{
114	return 0;
115}
116#endif
117
118static 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;
139err:
140	return ret;
141}
142
143static 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};
162MODULE_DEVICE_TABLE(hid, sjoy_devices);
163
164static struct hid_driver sjoy_driver = {
165	.name = "smartjoyplus",
166	.id_table = sjoy_devices,
167	.probe = sjoy_probe,
168};
169module_hid_driver(sjoy_driver);
170
171MODULE_LICENSE("GPL");
172MODULE_AUTHOR("Jussi Kivilinna");
173
174