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Linux/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 
183 

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