linux/drivers/hid/hid-sjoy.c
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   1/*
   2 *  Force feedback support for SmartJoy PLUS PS2->USB adapter
   3 *
   4 *  Copyright (c) 2009 Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
   5 *
   6 *  Based of hid-pl.c and hid-gaff.c
   7 *   Copyright (c) 2007, 2009 Anssi Hannula <anssi.hannula@gmail.com>
   8 *   Copyright (c) 2008 Lukasz Lubojanski <lukasz@lubojanski.info>
   9 */
  10
  11/*
  12 * This program is free software; you can redistribute it and/or modify
  13 * it under the terms of the GNU General Public License as published by
  14 * the Free Software Foundation; either version 2 of the License, or
  15 * (at your option) any later version.
  16 *
  17 * This program is distributed in the hope that it will be useful,
  18 * but WITHOUT ANY WARRANTY; without even the implied warranty of
  19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  20 * GNU General Public License for more details.
  21 *
  22 * You should have received a copy of the GNU General Public License
  23 * along with this program; if not, write to the Free Software
  24 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  25 */
  26
  27/* #define DEBUG */
  28
  29#include <linux/input.h>
  30#include <linux/slab.h>
  31#include <linux/hid.h>
  32#include <linux/module.h>
  33#include "hid-ids.h"
  34
  35#ifdef CONFIG_SMARTJOYPLUS_FF
  36
  37struct sjoyff_device {
  38        struct hid_report *report;
  39};
  40
  41static int hid_sjoyff_play(struct input_dev *dev, void *data,
  42                         struct ff_effect *effect)
  43{
  44        struct hid_device *hid = input_get_drvdata(dev);
  45        struct sjoyff_device *sjoyff = data;
  46        u32 left, right;
  47
  48        left = effect->u.rumble.strong_magnitude;
  49        right = effect->u.rumble.weak_magnitude;
  50        dev_dbg(&dev->dev, "called with 0x%08x 0x%08x\n", left, right);
  51
  52        left = left * 0xff / 0xffff;
  53        right = (right != 0); /* on/off only */
  54
  55        sjoyff->report->field[0]->value[1] = right;
  56        sjoyff->report->field[0]->value[2] = left;
  57        dev_dbg(&dev->dev, "running with 0x%02x 0x%02x\n", left, right);
  58        hid_hw_request(hid, sjoyff->report, HID_REQ_SET_REPORT);
  59
  60        return 0;
  61}
  62
  63static int sjoyff_init(struct hid_device *hid)
  64{
  65        struct sjoyff_device *sjoyff;
  66        struct hid_report *report;
  67        struct hid_input *hidinput;
  68        struct list_head *report_list =
  69                        &hid->report_enum[HID_OUTPUT_REPORT].report_list;
  70        struct list_head *report_ptr = report_list;
  71        struct input_dev *dev;
  72        int error;
  73
  74        if (list_empty(report_list)) {
  75                hid_err(hid, "no output reports found\n");
  76                return -ENODEV;
  77        }
  78
  79        list_for_each_entry(hidinput, &hid->inputs, list) {
  80                report_ptr = report_ptr->next;
  81
  82                if (report_ptr == report_list) {
  83                        hid_err(hid, "required output report is missing\n");
  84                        return -ENODEV;
  85                }
  86
  87                report = list_entry(report_ptr, struct hid_report, list);
  88                if (report->maxfield < 1) {
  89                        hid_err(hid, "no fields in the report\n");
  90                        return -ENODEV;
  91                }
  92
  93                if (report->field[0]->report_count < 3) {
  94                        hid_err(hid, "not enough values in the field\n");
  95                        return -ENODEV;
  96                }
  97
  98                sjoyff = kzalloc(sizeof(struct sjoyff_device), GFP_KERNEL);
  99                if (!sjoyff)
 100                        return -ENOMEM;
 101
 102                dev = hidinput->input;
 103
 104                set_bit(FF_RUMBLE, dev->ffbit);
 105
 106                error = input_ff_create_memless(dev, sjoyff, hid_sjoyff_play);
 107                if (error) {
 108                        kfree(sjoyff);
 109                        return error;
 110                }
 111
 112                sjoyff->report = report;
 113                sjoyff->report->field[0]->value[0] = 0x01;
 114                sjoyff->report->field[0]->value[1] = 0x00;
 115                sjoyff->report->field[0]->value[2] = 0x00;
 116                hid_hw_request(hid, sjoyff->report, HID_REQ_SET_REPORT);
 117        }
 118
 119        hid_info(hid, "Force feedback for SmartJoy PLUS PS2/USB adapter\n");
 120
 121        return 0;
 122}
 123#else
 124static inline int sjoyff_init(struct hid_device *hid)
 125{
 126        return 0;
 127}
 128#endif
 129
 130static int sjoy_probe(struct hid_device *hdev, const struct hid_device_id *id)
 131{
 132        int ret;
 133
 134        hdev->quirks |= id->driver_data;
 135
 136        ret = hid_parse(hdev);
 137        if (ret) {
 138                hid_err(hdev, "parse failed\n");
 139                goto err;
 140        }
 141
 142        ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT & ~HID_CONNECT_FF);
 143        if (ret) {
 144                hid_err(hdev, "hw start failed\n");
 145                goto err;
 146        }
 147
 148        sjoyff_init(hdev);
 149
 150        return 0;
 151err:
 152        return ret;
 153}
 154
 155static const struct hid_device_id sjoy_devices[] = {
 156        { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP_LTD, USB_DEVICE_ID_SUPER_JOY_BOX_3_PRO),
 157                .driver_data = HID_QUIRK_NOGET },
 158        { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP_LTD, USB_DEVICE_ID_SUPER_DUAL_BOX_PRO),
 159                .driver_data = HID_QUIRK_MULTI_INPUT | HID_QUIRK_NOGET |
 160                               HID_QUIRK_SKIP_OUTPUT_REPORTS },
 161        { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP_LTD, USB_DEVICE_ID_SUPER_JOY_BOX_5_PRO),
 162                .driver_data = HID_QUIRK_MULTI_INPUT | HID_QUIRK_NOGET |
 163                               HID_QUIRK_SKIP_OUTPUT_REPORTS },
 164        { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_SMARTJOY_PLUS) },
 165        { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_SUPER_JOY_BOX_3) },
 166        { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_DUAL_USB_JOYPAD),
 167                .driver_data = HID_QUIRK_MULTI_INPUT |
 168                               HID_QUIRK_SKIP_OUTPUT_REPORTS },
 169        { }
 170};
 171MODULE_DEVICE_TABLE(hid, sjoy_devices);
 172
 173static struct hid_driver sjoy_driver = {
 174        .name = "smartjoyplus",
 175        .id_table = sjoy_devices,
 176        .probe = sjoy_probe,
 177};
 178module_hid_driver(sjoy_driver);
 179
 180MODULE_LICENSE("GPL");
 181MODULE_AUTHOR("Jussi Kivilinna");
 182
 183
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