/* * Force feedback support for SmartJoy PLUS PS2->USB adapter * * Copyright (c) 2009 Jussi Kivilinna <jussi.kivilinna@mbnet.fi> * * Based of hid-pl.c and hid-gaff.c * Copyright (c) 2007, 2009 Anssi Hannula <anssi.hannula@gmail.com> * Copyright (c) 2008 Lukasz Lubojanski <lukasz@lubojanski.info> */ /* * 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. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ /* #define DEBUG */ #include <linux/input.h> #include <linux/usb.h> #include <linux/hid.h> #include "hid-ids.h" #ifdef CONFIG_SMARTJOYPLUS_FF #include "usbhid/usbhid.h" struct sjoyff_device { struct hid_report *report; }; static int hid_sjoyff_play(struct input_dev *dev, void *data, struct ff_effect *effect) { struct hid_device *hid = input_get_drvdata(dev); struct sjoyff_device *sjoyff = data; u32 left, right; left = effect->u.rumble.strong_magnitude; right = effect->u.rumble.weak_magnitude; dev_dbg(&dev->dev, "called with 0x%08x 0x%08x\n", left, right); left = left * 0xff / 0xffff; right = (right != 0); /* on/off only */ sjoyff->report->field[0]->value[1] = right; sjoyff->report->field[0]->value[2] = left; dev_dbg(&dev->dev, "running with 0x%02x 0x%02x\n", left, right); usbhid_submit_report(hid, sjoyff->report, USB_DIR_OUT); return 0; } static int sjoyff_init(struct hid_device *hid) { struct sjoyff_device *sjoyff; struct hid_report *report; struct hid_input *hidinput = list_entry(hid->inputs.next, struct hid_input, list); struct list_head *report_list = &hid->report_enum[HID_OUTPUT_REPORT].report_list; struct list_head *report_ptr = report_list; struct input_dev *dev; int error; if (list_empty(report_list)) { dev_err(&hid->dev, "no output reports found\n"); return -ENODEV; } report_ptr = report_ptr->next; if (report_ptr == report_list) { dev_err(&hid->dev, "required output report is " "missing\n"); return -ENODEV; } report = list_entry(report_ptr, struct hid_report, list); if (report->maxfield < 1) { dev_err(&hid->dev, "no fields in the report\n"); return -ENODEV; } if (report->field[0]->report_count < 3) { dev_err(&hid->dev, "not enough values in the field\n"); return -ENODEV; } sjoyff = kzalloc(sizeof(struct sjoyff_device), GFP_KERNEL); if (!sjoyff) return -ENOMEM; dev = hidinput->input; set_bit(FF_RUMBLE, dev->ffbit); error = input_ff_create_memless(dev, sjoyff, hid_sjoyff_play); if (error) { kfree(sjoyff); return error; } sjoyff->report = report; sjoyff->report->field[0]->value[0] = 0x01; sjoyff->report->field[0]->value[1] = 0x00; sjoyff->report->field[0]->value[2] = 0x00; usbhid_submit_report(hid, sjoyff->report, USB_DIR_OUT); dev_info(&hid->dev, "Force feedback for SmartJoy PLUS PS2/USB adapter\n"); return 0; } #else static inline int sjoyff_init(struct hid_device *hid) { return 0; } #endif static int sjoy_probe(struct hid_device *hdev, const struct hid_device_id *id) { int ret; ret = hid_parse(hdev); if (ret) { dev_err(&hdev->dev, "parse failed\n"); goto err; } ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT & ~HID_CONNECT_FF); if (ret) { dev_err(&hdev->dev, "hw start failed\n"); goto err; } sjoyff_init(hdev); return 0; err: return ret; } static const struct hid_device_id sjoy_devices[] = { { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_SMARTJOY_PLUS) }, { } }; MODULE_DEVICE_TABLE(hid, sjoy_devices); static struct hid_driver sjoy_driver = { .name = "smartjoyplus", .id_table = sjoy_devices, .probe = sjoy_probe, }; static int __init sjoy_init(void) { return hid_register_driver(&sjoy_driver); } static void __exit sjoy_exit(void) { hid_unregister_driver(&sjoy_driver); } module_init(sjoy_init); module_exit(sjoy_exit); MODULE_LICENSE("GPL"); MODULE_AUTHOR("Jussi Kivilinna");