2874c5fd28
Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 3029 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070032.746973796@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
158 lines
3.7 KiB
C
158 lines
3.7 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* Force feedback support for Betop based devices
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*
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* The devices are distributed under various names and the same USB device ID
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* can be used in both adapters and actual game controllers.
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*
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* 0x11c2:0x2208 "BTP2185 BFM mode Joystick"
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* - tested with BTP2185 BFM Mode.
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*
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* 0x11C0:0x5506 "BTP2185 PC mode Joystick"
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* - tested with BTP2185 PC Mode.
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*
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* 0x8380:0x1850 "BTP2185 V2 PC mode USB Gamepad"
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* - tested with BTP2185 PC Mode with another version.
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*
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* 0x20bc:0x5500 "BTP2185 V2 BFM mode Joystick"
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* - tested with BTP2171s.
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* Copyright (c) 2014 Huang Bo <huangbobupt@163.com>
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*/
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/*
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*/
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#include <linux/input.h>
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#include <linux/slab.h>
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#include <linux/module.h>
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#include <linux/hid.h>
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#include "hid-ids.h"
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struct betopff_device {
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struct hid_report *report;
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};
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static int hid_betopff_play(struct input_dev *dev, void *data,
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struct ff_effect *effect)
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{
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struct hid_device *hid = input_get_drvdata(dev);
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struct betopff_device *betopff = data;
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__u16 left, right;
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left = effect->u.rumble.strong_magnitude;
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right = effect->u.rumble.weak_magnitude;
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betopff->report->field[2]->value[0] = left / 256;
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betopff->report->field[3]->value[0] = right / 256;
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hid_hw_request(hid, betopff->report, HID_REQ_SET_REPORT);
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return 0;
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}
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static int betopff_init(struct hid_device *hid)
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{
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struct betopff_device *betopff;
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struct hid_report *report;
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struct hid_input *hidinput =
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list_first_entry(&hid->inputs, struct hid_input, list);
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struct list_head *report_list =
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&hid->report_enum[HID_OUTPUT_REPORT].report_list;
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struct input_dev *dev = hidinput->input;
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int field_count = 0;
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int error;
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int i, j;
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if (list_empty(report_list)) {
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hid_err(hid, "no output reports found\n");
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return -ENODEV;
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}
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report = list_first_entry(report_list, struct hid_report, list);
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/*
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* Actually there are 4 fields for 4 Bytes as below:
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* -----------------------------------------
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* Byte0 Byte1 Byte2 Byte3
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* 0x00 0x00 left_motor right_motor
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* -----------------------------------------
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* Do init them with default value.
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*/
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for (i = 0; i < report->maxfield; i++) {
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for (j = 0; j < report->field[i]->report_count; j++) {
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report->field[i]->value[j] = 0x00;
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field_count++;
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}
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}
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if (field_count < 4) {
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hid_err(hid, "not enough fields in the report: %d\n",
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field_count);
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return -ENODEV;
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}
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betopff = kzalloc(sizeof(*betopff), GFP_KERNEL);
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if (!betopff)
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return -ENOMEM;
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set_bit(FF_RUMBLE, dev->ffbit);
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error = input_ff_create_memless(dev, betopff, hid_betopff_play);
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if (error) {
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kfree(betopff);
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return error;
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}
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betopff->report = report;
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hid_hw_request(hid, betopff->report, HID_REQ_SET_REPORT);
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hid_info(hid, "Force feedback for betop devices by huangbo <huangbobupt@163.com>\n");
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return 0;
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}
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static int betop_probe(struct hid_device *hdev, const struct hid_device_id *id)
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{
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int ret;
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if (id->driver_data)
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hdev->quirks |= HID_QUIRK_MULTI_INPUT;
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ret = hid_parse(hdev);
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if (ret) {
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hid_err(hdev, "parse failed\n");
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goto err;
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}
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ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT & ~HID_CONNECT_FF);
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if (ret) {
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hid_err(hdev, "hw start failed\n");
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goto err;
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}
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betopff_init(hdev);
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return 0;
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err:
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return ret;
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}
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static const struct hid_device_id betop_devices[] = {
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{ HID_USB_DEVICE(USB_VENDOR_ID_BETOP_2185BFM, 0x2208) },
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{ HID_USB_DEVICE(USB_VENDOR_ID_BETOP_2185PC, 0x5506) },
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{ HID_USB_DEVICE(USB_VENDOR_ID_BETOP_2185V2PC, 0x1850) },
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{ HID_USB_DEVICE(USB_VENDOR_ID_BETOP_2185V2BFM, 0x5500) },
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{ }
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};
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MODULE_DEVICE_TABLE(hid, betop_devices);
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static struct hid_driver betop_driver = {
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.name = "betop",
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.id_table = betop_devices,
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.probe = betop_probe,
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};
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module_hid_driver(betop_driver);
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MODULE_LICENSE("GPL");
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