drivers/hid/hid-sjoy.c

   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
  37 struct sjoyff_device {
  38         struct hid_report *report;
  39 };
  40
  41 static 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
  63 static 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
 124 static inline int sjoyff_init(struct hid_device *hid)
 125 {
 126         return 0;
 127 }
 128 #endif
 129
 130 static 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;
 151 err:
 152         return ret;
 153 }
 154
 155 static 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 };
 171 MODULE_DEVICE_TABLE(hid, sjoy_devices);
 172
 173 static struct hid_driver sjoy_driver = {
 174         .name = "smartjoyplus",
 175         .id_table = sjoy_devices,
 176         .probe = sjoy_probe,
 177 };
 178 module_hid_driver(sjoy_driver);
 179
 180 MODULE_LICENSE("GPL");
 181 MODULE_AUTHOR("Jussi Kivilinna");
 182