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/usb.h>
  32#include <linux/hid.h>
  33#include <linux/module.h>
  34#include "hid-ids.h"
  35
  36#ifdef CONFIG_SMARTJOYPLUS_FF
  37#include "usbhid/usbhid.h"
  38
  39struct sjoyff_device {
  40        struct hid_report *report;
  41};
  42
  43static int hid_sjoyff_play(struct input_dev *dev, void *data,
  44                         struct ff_effect *effect)
  45{
  46        struct hid_device *hid = input_get_drvdata(dev);
  47        struct sjoyff_device *sjoyff = data;
  48        u32 left, right;
  49
  50        left = effect->u.rumble.strong_magnitude;
  51        right = effect->u.rumble.weak_magnitude;
  52        dev_dbg(&dev->dev, "called with 0x%08x 0x%08x\n", left, right);
  53
  54        left = left * 0xff / 0xffff;
  55        right = (right != 0); /* on/off only */
  56
  57        sjoyff->report->field[0]->value[1] = right;
  58        sjoyff->report->field[0]->value[2] = left;
  59        dev_dbg(&dev->dev, "running with 0x%02x 0x%02x\n", left, right);
  60        usbhid_submit_report(hid, sjoyff->report, USB_DIR_OUT);
  61
  62        return 0;
  63}
  64
  65static int sjoyff_init(struct hid_device *hid)
  66{
  67        struct sjoyff_device *sjoyff;
  68        struct hid_report *report;
  69        struct hid_input *hidinput;
  70        struct list_head *report_list =
  71                        &hid->report_enum[HID_OUTPUT_REPORT].report_list;
  72        struct list_head *report_ptr = report_list;
  73        struct input_dev *dev;
  74        int error;
  75
  76        if (list_empty(report_list)) {
  77                hid_err(hid, "no output reports found\n");
  78                return -ENODEV;
  79        }
  80
  81        list_for_each_entry(hidinput, &hid->inputs, list) {
  82                report_ptr = report_ptr->next;
  83
  84                if (report_ptr == report_list) {
  85                        hid_err(hid, "required output report is missing\n");
  86                        return -ENODEV;
  87                }
  88
  89                report = list_entry(report_ptr, struct hid_report, list);
  90                if (report->maxfield < 1) {
  91                        hid_err(hid, "no fields in the report\n");
  92                        return -ENODEV;
  93                }
  94
  95                if (report->field[0]->report_count < 3) {
  96                        hid_err(hid, "not enough values in the field\n");
  97                        return -ENODEV;
  98                }
  99
 100                sjoyff = kzalloc(sizeof(struct sjoyff_device), GFP_KERNEL);
 101                if (!sjoyff)
 102                        return -ENOMEM;
 103
 104                dev = hidinput->input;
 105
 106                set_bit(FF_RUMBLE, dev->ffbit);
 107
 108                error = input_ff_create_memless(dev, sjoyff, hid_sjoyff_play);
 109                if (error) {
 110                        kfree(sjoyff);
 111                        return error;
 112                }
 113
 114                sjoyff->report = report;
 115                sjoyff->report->field[0]->value[0] = 0x01;
 116                sjoyff->report->field[0]->value[1] = 0x00;
 117                sjoyff->report->field[0]->value[2] = 0x00;
 118                usbhid_submit_report(hid, sjoyff->report, USB_DIR_OUT);
 119        }
 120
 121        hid_info(hid, "Force feedback for SmartJoy PLUS PS2/USB adapter\n");
 122
 123        return 0;
 124}
 125#else
 126static inline int sjoyff_init(struct hid_device *hid)
 127{
 128        return 0;
 129}
 130#endif
 131
 132static int sjoy_probe(struct hid_device *hdev, const struct hid_device_id *id)
 133{
 134        int ret;
 135
 136        hdev->quirks |= id->driver_data;
 137
 138        ret = hid_parse(hdev);
 139        if (ret) {
 140                hid_err(hdev, "parse failed\n");
 141                goto err;
 142        }
 143
 144        ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT & ~HID_CONNECT_FF);
 145        if (ret) {
 146                hid_err(hdev, "hw start failed\n");
 147                goto err;
 148        }
 149
 150        sjoyff_init(hdev);
 151
 152        return 0;
 153err:
 154        return ret;
 155}
 156
 157static const struct hid_device_id sjoy_devices[] = {
 158        { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP_LTD, USB_DEVICE_ID_SUPER_JOY_BOX_3_PRO),
 159                .driver_data = HID_QUIRK_NOGET },
 160        { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP_LTD, USB_DEVICE_ID_SUPER_DUAL_BOX_PRO),
 161                .driver_data = HID_QUIRK_MULTI_INPUT | HID_QUIRK_NOGET |
 162                               HID_QUIRK_SKIP_OUTPUT_REPORTS },
 163        { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP_LTD, USB_DEVICE_ID_SUPER_JOY_BOX_5_PRO),
 164                .driver_data = HID_QUIRK_MULTI_INPUT | HID_QUIRK_NOGET |
 165                               HID_QUIRK_SKIP_OUTPUT_REPORTS },
 166        { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_SMARTJOY_PLUS) },
 167        { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_SUPER_JOY_BOX_3) },
 168        { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_DUAL_USB_JOYPAD),
 169                .driver_data = HID_QUIRK_MULTI_INPUT |
 170                               HID_QUIRK_SKIP_OUTPUT_REPORTS },
 171        { }
 172};
 173MODULE_DEVICE_TABLE(hid, sjoy_devices);
 174
 175static struct hid_driver sjoy_driver = {
 176        .name = "smartjoyplus",
 177        .id_table = sjoy_devices,
 178        .probe = sjoy_probe,
 179};
 180
 181static int __init sjoy_init(void)
 182{
 183        return hid_register_driver(&sjoy_driver);
 184}
 185
 186static void __exit sjoy_exit(void)
 187{
 188        hid_unregister_driver(&sjoy_driver);
 189}
 190
 191module_init(sjoy_init);
 192module_exit(sjoy_exit);
 193MODULE_LICENSE("GPL");
 194MODULE_AUTHOR("Jussi Kivilinna");
 195
 196
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