2 * Force feedback support for Zeroplus based devices
4 * Copyright (c) 2005, 2006 Anssi Hannula <anssi.hannula@gmail.com>
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
24 #include <linux/hid.h>
25 #include <linux/input.h>
26 #include <linux/slab.h>
27 #include <linux/usb.h>
31 #ifdef CONFIG_ZEROPLUS_FF
32 #include "usbhid/usbhid.h"
35 struct hid_report
*report
;
38 static int zpff_play(struct input_dev
*dev
, void *data
,
39 struct ff_effect
*effect
)
41 struct hid_device
*hid
= input_get_drvdata(dev
);
42 struct zpff_device
*zpff
= data
;
46 * The following is specified the other way around in the Zeroplus
47 * datasheet but the order below is correct for the XFX Executioner;
48 * however it is possible that the XFX Executioner is an exception
51 left
= effect
->u
.rumble
.strong_magnitude
;
52 right
= effect
->u
.rumble
.weak_magnitude
;
53 dbg_hid("called with 0x%04x 0x%04x\n", left
, right
);
55 left
= left
* 0x7f / 0xffff;
56 right
= right
* 0x7f / 0xffff;
58 zpff
->report
->field
[2]->value
[0] = left
;
59 zpff
->report
->field
[3]->value
[0] = right
;
60 dbg_hid("running with 0x%02x 0x%02x\n", left
, right
);
61 usbhid_submit_report(hid
, zpff
->report
, USB_DIR_OUT
);
66 static int zpff_init(struct hid_device
*hid
)
68 struct zpff_device
*zpff
;
69 struct hid_report
*report
;
70 struct hid_input
*hidinput
= list_entry(hid
->inputs
.next
,
71 struct hid_input
, list
);
72 struct list_head
*report_list
=
73 &hid
->report_enum
[HID_OUTPUT_REPORT
].report_list
;
74 struct input_dev
*dev
= hidinput
->input
;
77 if (list_empty(report_list
)) {
78 dev_err(&hid
->dev
, "no output report found\n");
82 report
= list_entry(report_list
->next
, struct hid_report
, list
);
84 if (report
->maxfield
< 4) {
85 dev_err(&hid
->dev
, "not enough fields in report\n");
89 zpff
= kzalloc(sizeof(struct zpff_device
), GFP_KERNEL
);
93 set_bit(FF_RUMBLE
, dev
->ffbit
);
95 error
= input_ff_create_memless(dev
, zpff
, zpff_play
);
101 zpff
->report
= report
;
102 zpff
->report
->field
[0]->value
[0] = 0x00;
103 zpff
->report
->field
[1]->value
[0] = 0x02;
104 zpff
->report
->field
[2]->value
[0] = 0x00;
105 zpff
->report
->field
[3]->value
[0] = 0x00;
106 usbhid_submit_report(hid
, zpff
->report
, USB_DIR_OUT
);
108 dev_info(&hid
->dev
, "force feedback for Zeroplus based devices by "
109 "Anssi Hannula <anssi.hannula@gmail.com>\n");
114 static inline int zpff_init(struct hid_device
*hid
)
120 static int zp_probe(struct hid_device
*hdev
, const struct hid_device_id
*id
)
124 ret
= hid_parse(hdev
);
126 dev_err(&hdev
->dev
, "parse failed\n");
130 ret
= hid_hw_start(hdev
, HID_CONNECT_DEFAULT
& ~HID_CONNECT_FF
);
132 dev_err(&hdev
->dev
, "hw start failed\n");
143 static const struct hid_device_id zp_devices
[] = {
144 { HID_USB_DEVICE(USB_VENDOR_ID_ZEROPLUS
, 0x0005) },
145 { HID_USB_DEVICE(USB_VENDOR_ID_ZEROPLUS
, 0x0030) },
148 MODULE_DEVICE_TABLE(hid
, zp_devices
);
150 static struct hid_driver zp_driver
= {
152 .id_table
= zp_devices
,
156 static int __init
zp_init(void)
158 return hid_register_driver(&zp_driver
);
161 static void __exit
zp_exit(void)
163 hid_unregister_driver(&zp_driver
);
166 module_init(zp_init
);
167 module_exit(zp_exit
);
168 MODULE_LICENSE("GPL");
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