1 /* 2 * Force feedback support for Mayflash game controller adapters. 3 * 4 * These devices are manufactured by Mayflash but identify themselves 5 * using the vendor ID of DragonRise Inc. 6 * 7 * Tested with: 8 * 0079:1801 "DragonRise Inc. Mayflash PS3 Game Controller Adapter" 9 * 0079:1803 "DragonRise Inc. Mayflash Wireless Sensor DolphinBar" 10 * 0079:1843 "DragonRise Inc. Mayflash GameCube Game Controller Adapter" 11 * 0079:1844 "DragonRise Inc. Mayflash GameCube Game Controller Adapter (v04)" 12 * 13 * The following adapters probably work too, but need to be tested: 14 * 0079:1800 "DragonRise Inc. Mayflash WIIU Game Controller Adapter" 15 * 16 * Copyright (c) 2016-2017 Marcel Hasler <mahasler@gmail.com> 17 */ 18 19 /* 20 * This program is free software; you can redistribute it and/or modify 21 * it under the terms of the GNU General Public License as published by 22 * the Free Software Foundation; either version 2 of the License, or 23 * (at your option) any later version. 24 * 25 * This program is distributed in the hope that it will be useful, 26 * but WITHOUT ANY WARRANTY; without even the implied warranty of 27 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 28 * GNU General Public License for more details. 29 */ 30 31 #include <linux/input.h> 32 #include <linux/slab.h> 33 #include <linux/hid.h> 34 #include <linux/module.h> 35 36 #include "hid-ids.h" 37 38 struct mf_device { 39 struct hid_report *report; 40 }; 41 42 static int mf_play(struct input_dev *dev, void *data, struct ff_effect *effect) 43 { 44 struct hid_device *hid = input_get_drvdata(dev); 45 struct mf_device *mf = data; 46 int strong, weak; 47 48 strong = effect->u.rumble.strong_magnitude; 49 weak = effect->u.rumble.weak_magnitude; 50 51 dbg_hid("Called with 0x%04x 0x%04x.\n", strong, weak); 52 53 strong = strong * 0xff / 0xffff; 54 weak = weak * 0xff / 0xffff; 55 56 dbg_hid("Running with 0x%02x 0x%02x.\n", strong, weak); 57 58 mf->report->field[0]->value[0] = weak; 59 mf->report->field[0]->value[1] = strong; 60 hid_hw_request(hid, mf->report, HID_REQ_SET_REPORT); 61 62 return 0; 63 } 64 65 static int mf_init(struct hid_device *hid) 66 { 67 struct mf_device *mf; 68 69 struct list_head *report_list = 70 &hid->report_enum[HID_OUTPUT_REPORT].report_list; 71 72 struct list_head *report_ptr; 73 struct hid_report *report; 74 75 struct list_head *input_ptr = &hid->inputs; 76 struct hid_input *input; 77 78 struct input_dev *dev; 79 80 int error; 81 82 /* Setup each of the four inputs */ 83 list_for_each(report_ptr, report_list) { 84 report = list_entry(report_ptr, struct hid_report, list); 85 86 if (report->maxfield < 1 || report->field[0]->report_count < 2) { 87 hid_err(hid, "Invalid report, this should never happen!\n"); 88 return -ENODEV; 89 } 90 91 if (list_is_last(input_ptr, &hid->inputs)) { 92 hid_err(hid, "Missing input, this should never happen!\n"); 93 return -ENODEV; 94 } 95 96 input_ptr = input_ptr->next; 97 input = list_entry(input_ptr, struct hid_input, list); 98 99 mf = kzalloc(sizeof(struct mf_device), GFP_KERNEL); 100 if (!mf) 101 return -ENOMEM; 102 103 dev = input->input; 104 set_bit(FF_RUMBLE, dev->ffbit); 105 106 error = input_ff_create_memless(dev, mf, mf_play); 107 if (error) { 108 kfree(mf); 109 return error; 110 } 111 112 mf->report = report; 113 mf->report->field[0]->value[0] = 0x00; 114 mf->report->field[0]->value[1] = 0x00; 115 hid_hw_request(hid, mf->report, HID_REQ_SET_REPORT); 116 } 117 118 hid_info(hid, "Force feedback for HJZ Mayflash game controller " 119 "adapters by Marcel Hasler <mahasler@gmail.com>\n"); 120 121 return 0; 122 } 123 124 static int mf_probe(struct hid_device *hid, const struct hid_device_id *id) 125 { 126 int error; 127 128 dev_dbg(&hid->dev, "Mayflash HID hardware probe...\n"); 129 130 /* Apply quirks as needed */ 131 hid->quirks |= id->driver_data; 132 133 error = hid_parse(hid); 134 if (error) { 135 hid_err(hid, "HID parse failed.\n"); 136 return error; 137 } 138 139 error = hid_hw_start(hid, HID_CONNECT_DEFAULT & ~HID_CONNECT_FF); 140 if (error) { 141 hid_err(hid, "HID hw start failed\n"); 142 return error; 143 } 144 145 error = mf_init(hid); 146 if (error) { 147 hid_err(hid, "Force feedback init failed.\n"); 148 hid_hw_stop(hid); 149 return error; 150 } 151 152 return 0; 153 } 154 155 static const struct hid_device_id mf_devices[] = { 156 { HID_USB_DEVICE(USB_VENDOR_ID_DRAGONRISE, USB_DEVICE_ID_DRAGONRISE_PS3), 157 .driver_data = HID_QUIRK_MULTI_INPUT }, 158 { HID_USB_DEVICE(USB_VENDOR_ID_DRAGONRISE, USB_DEVICE_ID_DRAGONRISE_DOLPHINBAR), 159 .driver_data = HID_QUIRK_MULTI_INPUT }, 160 { HID_USB_DEVICE(USB_VENDOR_ID_DRAGONRISE, USB_DEVICE_ID_DRAGONRISE_GAMECUBE1), 161 .driver_data = HID_QUIRK_MULTI_INPUT }, 162 { HID_USB_DEVICE(USB_VENDOR_ID_DRAGONRISE, USB_DEVICE_ID_DRAGONRISE_GAMECUBE2), 163 .driver_data = 0 }, /* No quirk required */ 164 { } 165 }; 166 MODULE_DEVICE_TABLE(hid, mf_devices); 167 168 static struct hid_driver mf_driver = { 169 .name = "hid_mf", 170 .id_table = mf_devices, 171 .probe = mf_probe, 172 }; 173 module_hid_driver(mf_driver); 174 175 MODULE_LICENSE("GPL"); 176