1/*
2 *  Force feedback support for SmartJoy PLUS PS2->USB adapter
3 *
4 *  Copyright (c) 2009 Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
5 *
6 *  Based of hid-pl.c and hid-gaff.c
7 *   Copyright (c) 2007, 2009 Anssi Hannula <anssi.hannula@gmail.com>
8 *   Copyright (c) 2008 Lukasz Lubojanski <lukasz@lubojanski.info>
9 */
10
11/*
12 * This program is free software; you can redistribute it and/or modify
13 * it under the terms of the GNU General Public License as published by
14 * the Free Software Foundation; either version 2 of the License, or
15 * (at your option) any later version.
16 *
17 * This program is distributed in the hope that it will be useful,
18 * but WITHOUT ANY WARRANTY; without even the implied warranty of
19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
20 * GNU General Public License for more details.
21 *
22 * You should have received a copy of the GNU General Public License
23 * along with this program; if not, write to the Free Software
24 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
25 */
26
27/* #define DEBUG */
28
29#include <linux/input.h>
30#include <linux/slab.h>
31#include <linux/hid.h>
32#include <linux/module.h>
33#include "hid-ids.h"
34
35#ifdef CONFIG_SMARTJOYPLUS_FF
36
37struct sjoyff_device {
38	struct hid_report *report;
39};
40
41static int hid_sjoyff_play(struct input_dev *dev, void *data,
42			 struct ff_effect *effect)
43{
44	struct hid_device *hid = input_get_drvdata(dev);
45	struct sjoyff_device *sjoyff = data;
46	u32 left, right;
47
48	left = effect->u.rumble.strong_magnitude;
49	right = effect->u.rumble.weak_magnitude;
50	dev_dbg(&dev->dev, "called with 0x%08x 0x%08x\n", left, right);
51
52	left = left * 0xff / 0xffff;
53	right = (right != 0); /* on/off only */
54
55	sjoyff->report->field[0]->value[1] = right;
56	sjoyff->report->field[0]->value[2] = left;
57	dev_dbg(&dev->dev, "running with 0x%02x 0x%02x\n", left, right);
58	hid_hw_request(hid, sjoyff->report, HID_REQ_SET_REPORT);
59
60	return 0;
61}
62
63static int sjoyff_init(struct hid_device *hid)
64{
65	struct sjoyff_device *sjoyff;
66	struct hid_report *report;
67	struct hid_input *hidinput;
68	struct list_head *report_list =
69			&hid->report_enum[HID_OUTPUT_REPORT].report_list;
70	struct list_head *report_ptr = report_list;
71	struct input_dev *dev;
72	int error;
73
74	if (list_empty(report_list)) {
75		hid_err(hid, "no output reports found\n");
76		return -ENODEV;
77	}
78
79	list_for_each_entry(hidinput, &hid->inputs, list) {
80		report_ptr = report_ptr->next;
81
82		if (report_ptr == report_list) {
83			hid_err(hid, "required output report is missing\n");
84			return -ENODEV;
85		}
86
87		report = list_entry(report_ptr, struct hid_report, list);
88		if (report->maxfield < 1) {
89			hid_err(hid, "no fields in the report\n");
90			return -ENODEV;
91		}
92
93		if (report->field[0]->report_count < 3) {
94			hid_err(hid, "not enough values in the field\n");
95			return -ENODEV;
96		}
97
98		sjoyff = kzalloc(sizeof(struct sjoyff_device), GFP_KERNEL);
99		if (!sjoyff)
100			return -ENOMEM;
101
102		dev = hidinput->input;
103
104		set_bit(FF_RUMBLE, dev->ffbit);
105
106		error = input_ff_create_memless(dev, sjoyff, hid_sjoyff_play);
107		if (error) {
108			kfree(sjoyff);
109			return error;
110		}
111
112		sjoyff->report = report;
113		sjoyff->report->field[0]->value[0] = 0x01;
114		sjoyff->report->field[0]->value[1] = 0x00;
115		sjoyff->report->field[0]->value[2] = 0x00;
116		hid_hw_request(hid, sjoyff->report, HID_REQ_SET_REPORT);
117	}
118
119	hid_info(hid, "Force feedback for SmartJoy PLUS PS2/USB adapter\n");
120
121	return 0;
122}
123#else
124static inline int sjoyff_init(struct hid_device *hid)
125{
126	return 0;
127}
128#endif
129
130static int sjoy_probe(struct hid_device *hdev, const struct hid_device_id *id)
131{
132	int ret;
133
134	hdev->quirks |= id->driver_data;
135
136	ret = hid_parse(hdev);
137	if (ret) {
138		hid_err(hdev, "parse failed\n");
139		goto err;
140	}
141
142	ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT & ~HID_CONNECT_FF);
143	if (ret) {
144		hid_err(hdev, "hw start failed\n");
145		goto err;
146	}
147
148	sjoyff_init(hdev);
149
150	return 0;
151err:
152	return ret;
153}
154
155static const struct hid_device_id sjoy_devices[] = {
156	{ HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP_LTD, USB_DEVICE_ID_SUPER_JOY_BOX_3_PRO),
157		.driver_data = HID_QUIRK_NOGET },
158	{ HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP_LTD, USB_DEVICE_ID_SUPER_DUAL_BOX_PRO),
159		.driver_data = HID_QUIRK_MULTI_INPUT | HID_QUIRK_NOGET |
160			       HID_QUIRK_SKIP_OUTPUT_REPORTS },
161	{ HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP_LTD, USB_DEVICE_ID_SUPER_JOY_BOX_5_PRO),
162		.driver_data = HID_QUIRK_MULTI_INPUT | HID_QUIRK_NOGET |
163			       HID_QUIRK_SKIP_OUTPUT_REPORTS },
164	{ HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_SMARTJOY_PLUS) },
165	{ HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_SUPER_JOY_BOX_3) },
166	{ HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_DUAL_USB_JOYPAD),
167		.driver_data = HID_QUIRK_MULTI_INPUT |
168			       HID_QUIRK_SKIP_OUTPUT_REPORTS },
169	{ }
170};
171MODULE_DEVICE_TABLE(hid, sjoy_devices);
172
173static struct hid_driver sjoy_driver = {
174	.name = "smartjoyplus",
175	.id_table = sjoy_devices,
176	.probe = sjoy_probe,
177};
178module_hid_driver(sjoy_driver);
179
180MODULE_LICENSE("GPL");
181MODULE_AUTHOR("Jussi Kivilinna");
182
183