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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,160 @@ | ||
| /* | ||
| * Force feedback support for Betop based devices | ||
| * | ||
| * The devices are distributed under various names and the same USB device ID | ||
| * can be used in both adapters and actual game controllers. | ||
| * | ||
| * 0x11c2:0x2208 "BTP2185 BFM mode Joystick" | ||
| * - tested with BTP2185 BFM Mode. | ||
| * | ||
| * 0x11C0:0x5506 "BTP2185 PC mode Joystick" | ||
| * - tested with BTP2185 PC Mode. | ||
| * | ||
| * 0x8380:0x1850 "BTP2185 V2 PC mode USB Gamepad" | ||
| * - tested with BTP2185 PC Mode with another version. | ||
| * | ||
| * 0x20bc:0x5500 "BTP2185 V2 BFM mode Joystick" | ||
| * - tested with BTP2171s. | ||
| * Copyright (c) 2014 Huang Bo <huangbobupt@163.com> | ||
| */ | ||
|
|
||
| /* | ||
| * 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. | ||
| */ | ||
|
|
||
|
|
||
| #include <linux/input.h> | ||
| #include <linux/slab.h> | ||
| #include <linux/module.h> | ||
| #include <linux/hid.h> | ||
|
|
||
| #include "hid-ids.h" | ||
|
|
||
| struct betopff_device { | ||
| struct hid_report *report; | ||
| }; | ||
|
|
||
| static int hid_betopff_play(struct input_dev *dev, void *data, | ||
| struct ff_effect *effect) | ||
| { | ||
| struct hid_device *hid = input_get_drvdata(dev); | ||
| struct betopff_device *betopff = data; | ||
| __u16 left, right; | ||
|
|
||
| left = effect->u.rumble.strong_magnitude; | ||
| right = effect->u.rumble.weak_magnitude; | ||
|
|
||
| betopff->report->field[2]->value[0] = left / 256; | ||
| betopff->report->field[3]->value[0] = right / 256; | ||
|
|
||
| hid_hw_request(hid, betopff->report, HID_REQ_SET_REPORT); | ||
|
|
||
| return 0; | ||
| } | ||
|
|
||
| static int betopff_init(struct hid_device *hid) | ||
| { | ||
| struct betopff_device *betopff; | ||
| struct hid_report *report; | ||
| struct hid_input *hidinput = | ||
| list_first_entry(&hid->inputs, struct hid_input, list); | ||
| struct list_head *report_list = | ||
| &hid->report_enum[HID_OUTPUT_REPORT].report_list; | ||
| struct input_dev *dev = hidinput->input; | ||
| int field_count = 0; | ||
| int error; | ||
| int i, j; | ||
|
|
||
| if (list_empty(report_list)) { | ||
| hid_err(hid, "no output reports found\n"); | ||
| return -ENODEV; | ||
| } | ||
|
|
||
| report = list_first_entry(report_list, struct hid_report, list); | ||
| /* | ||
| * Actually there are 4 fields for 4 Bytes as below: | ||
| * ----------------------------------------- | ||
| * Byte0 Byte1 Byte2 Byte3 | ||
| * 0x00 0x00 left_motor right_motor | ||
| * ----------------------------------------- | ||
| * Do init them with default value. | ||
| */ | ||
| for (i = 0; i < report->maxfield; i++) { | ||
| for (j = 0; j < report->field[i]->report_count; j++) { | ||
| report->field[i]->value[j] = 0x00; | ||
| field_count++; | ||
| } | ||
| } | ||
|
|
||
| if (field_count < 4) { | ||
| hid_err(hid, "not enough fields in the report: %d\n", | ||
| field_count); | ||
| return -ENODEV; | ||
| } | ||
|
|
||
| betopff = kzalloc(sizeof(*betopff), GFP_KERNEL); | ||
| if (!betopff) | ||
| return -ENOMEM; | ||
|
|
||
| set_bit(FF_RUMBLE, dev->ffbit); | ||
|
|
||
| error = input_ff_create_memless(dev, betopff, hid_betopff_play); | ||
| if (error) { | ||
| kfree(betopff); | ||
| return error; | ||
| } | ||
|
|
||
| betopff->report = report; | ||
| 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"); | ||
|
|
||
| return 0; | ||
| } | ||
|
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| static int betop_probe(struct hid_device *hdev, const struct hid_device_id *id) | ||
| { | ||
| int ret; | ||
|
|
||
| if (id->driver_data) | ||
| hdev->quirks |= HID_QUIRK_MULTI_INPUT; | ||
|
|
||
| ret = hid_parse(hdev); | ||
| if (ret) { | ||
| hid_err(hdev, "parse failed\n"); | ||
| goto err; | ||
| } | ||
|
|
||
| ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT & ~HID_CONNECT_FF); | ||
| if (ret) { | ||
| hid_err(hdev, "hw start failed\n"); | ||
| goto err; | ||
| } | ||
|
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| betopff_init(hdev); | ||
|
|
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| return 0; | ||
| err: | ||
| return ret; | ||
| } | ||
|
|
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| static const struct hid_device_id betop_devices[] = { | ||
| { HID_USB_DEVICE(USB_VENDOR_ID_BETOP_2185BFM, 0x2208) }, | ||
| { HID_USB_DEVICE(USB_VENDOR_ID_BETOP_2185PC, 0x5506) }, | ||
| { HID_USB_DEVICE(USB_VENDOR_ID_BETOP_2185V2PC, 0x1850) }, | ||
| { HID_USB_DEVICE(USB_VENDOR_ID_BETOP_2185V2BFM, 0x5500) }, | ||
| { } | ||
| }; | ||
| MODULE_DEVICE_TABLE(hid, betop_devices); | ||
|
|
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| static struct hid_driver betop_driver = { | ||
| .name = "betop", | ||
| .id_table = betop_devices, | ||
| .probe = betop_probe, | ||
| }; | ||
| module_hid_driver(betop_driver); | ||
|
|
||
| MODULE_LICENSE("GPL"); |
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