2 * Force feedback support for Mayflash game controller adapters.
4 * These devices are manufactured by Mayflash but identify themselves
5 * using the vendor ID of DragonRise Inc.
8 * 0079:1801 "DragonRise Inc. Mayflash PS3 Game Controller Adapter"
10 * The following adapters probably work too, but need to be tested:
11 * 0079:1800 "DragonRise Inc. Mayflash WIIU Game Controller Adapter"
12 * 0079:1843 "DragonRise Inc. Mayflash GameCube Game Controller Adapter"
14 * Copyright (c) 2016 Marcel Hasler <mahasler@gmail.com>
18 * This program is free software; you can redistribute it and/or modify
19 * it under the terms of the GNU General Public License as published by
20 * the Free Software Foundation; either version 2 of the License, or
21 * (at your option) any later version.
23 * This program is distributed in the hope that it will be useful,
24 * but WITHOUT ANY WARRANTY; without even the implied warranty of
25 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
26 * GNU General Public License for more details.
29 #include <linux/input.h>
30 #include <linux/slab.h>
31 #include <linux/hid.h>
32 #include <linux/module.h>
37 struct hid_report *report;
40 static int mf_play(struct input_dev *dev, void *data, struct ff_effect *effect)
42 struct hid_device *hid = input_get_drvdata(dev);
43 struct mf_device *mf = data;
46 strong = effect->u.rumble.strong_magnitude;
47 weak = effect->u.rumble.weak_magnitude;
49 dbg_hid("Called with 0x%04x 0x%04x.\n", strong, weak);
51 strong = strong * 0xff / 0xffff;
52 weak = weak * 0xff / 0xffff;
54 dbg_hid("Running with 0x%02x 0x%02x.\n", strong, weak);
56 mf->report->field[0]->value[0] = weak;
57 mf->report->field[0]->value[1] = strong;
58 hid_hw_request(hid, mf->report, HID_REQ_SET_REPORT);
63 static int mf_init(struct hid_device *hid)
67 struct list_head *report_list =
68 &hid->report_enum[HID_OUTPUT_REPORT].report_list;
70 struct list_head *report_ptr;
71 struct hid_report *report;
73 struct list_head *input_ptr = &hid->inputs;
74 struct hid_input *input;
76 struct input_dev *dev;
80 /* Setup each of the four inputs */
81 list_for_each(report_ptr, report_list) {
82 report = list_entry(report_ptr, struct hid_report, list);
84 if (report->maxfield < 1 || report->field[0]->report_count < 2) {
85 hid_err(hid, "Invalid report, this should never happen!\n");
89 if (list_is_last(input_ptr, &hid->inputs)) {
90 hid_err(hid, "Missing input, this should never happen!\n");
94 input_ptr = input_ptr->next;
95 input = list_entry(input_ptr, struct hid_input, list);
97 mf = kzalloc(sizeof(struct mf_device), GFP_KERNEL);
102 set_bit(FF_RUMBLE, dev->ffbit);
104 error = input_ff_create_memless(dev, mf, mf_play);
111 mf->report->field[0]->value[0] = 0x00;
112 mf->report->field[0]->value[1] = 0x00;
113 hid_hw_request(hid, mf->report, HID_REQ_SET_REPORT);
116 hid_info(hid, "Force feedback for HJZ Mayflash game controller "
117 "adapters by Marcel Hasler <mahasler@gmail.com>\n");
122 static int mf_probe(struct hid_device *hid, const struct hid_device_id *id)
126 dev_dbg(&hid->dev, "Mayflash HID hardware probe...\n");
128 /* Split device into four inputs */
129 hid->quirks |= HID_QUIRK_MULTI_INPUT;
131 error = hid_parse(hid);
133 hid_err(hid, "HID parse failed.\n");
137 error = hid_hw_start(hid, HID_CONNECT_DEFAULT & ~HID_CONNECT_FF);
139 hid_err(hid, "HID hw start failed\n");
143 error = mf_init(hid);
145 hid_err(hid, "Force feedback init failed.\n");
153 static const struct hid_device_id mf_devices[] = {
154 { HID_USB_DEVICE(USB_VENDOR_ID_DRAGONRISE, USB_DEVICE_ID_DRAGONRISE_PS3), },
157 MODULE_DEVICE_TABLE(hid, mf_devices);
159 static struct hid_driver mf_driver = {
161 .id_table = mf_devices,
164 module_hid_driver(mf_driver);
166 MODULE_LICENSE("GPL");