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157 lines
3.7 KiB
157 lines
3.7 KiB
// 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 <[email protected]> |
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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 <[email protected]>\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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