kvmfornfv -

Age	Commit message (Expand)	Author	Files	Lines
2016-04-13	These changes are the raw update to linux-4.4.6-rt14. Kernel sources	José Pekkarinen	1	-1/+0
2015-08-04	Add the rt linux 4.1.3-rt3 as base	Yunhong Jiang	1	-0/+540

/* * 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); hid_info(hid, "Force feedback for betop devices by huangbo <huangbobupt@163.com>\n"); return 0; } 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; } betopff_init(hdev); return 0; err: return ret; } 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); static struct hid_driver betop_driver = { .name = "betop", .id_table = betop_devices, .probe = betop_probe, }; module_hid_driver(betop_driver); MODULE_LICENSE("GPL");