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git.proxmox.com Git - mirror_ubuntu-bionic-kernel.git/blob - drivers/hid/hid-zpff.c
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/usb.h>
30 #include "usbhid/usbhid.h"
33 struct hid_report
*report
;
36 static int zpff_play(struct input_dev
*dev
, void *data
,
37 struct ff_effect
*effect
)
39 struct hid_device
*hid
= input_get_drvdata(dev
);
40 struct zpff_device
*zpff
= data
;
44 * The following is specified the other way around in the Zeroplus
45 * datasheet but the order below is correct for the XFX Executioner;
46 * however it is possible that the XFX Executioner is an exception
49 left
= effect
->u
.rumble
.strong_magnitude
;
50 right
= effect
->u
.rumble
.weak_magnitude
;
51 dbg_hid("called with 0x%04x 0x%04x\n", left
, right
);
53 left
= left
* 0x7f / 0xffff;
54 right
= right
* 0x7f / 0xffff;
56 zpff
->report
->field
[2]->value
[0] = left
;
57 zpff
->report
->field
[3]->value
[0] = right
;
58 dbg_hid("running with 0x%02x 0x%02x\n", left
, right
);
59 usbhid_submit_report(hid
, zpff
->report
, USB_DIR_OUT
);
64 static int zpff_init(struct hid_device
*hid
)
66 struct zpff_device
*zpff
;
67 struct hid_report
*report
;
68 struct hid_input
*hidinput
= list_entry(hid
->inputs
.next
,
69 struct hid_input
, list
);
70 struct list_head
*report_list
=
71 &hid
->report_enum
[HID_OUTPUT_REPORT
].report_list
;
72 struct input_dev
*dev
= hidinput
->input
;
75 if (list_empty(report_list
)) {
76 dev_err(&hid
->dev
, "no output report found\n");
80 report
= list_entry(report_list
->next
, struct hid_report
, list
);
82 if (report
->maxfield
< 4) {
83 dev_err(&hid
->dev
, "not enough fields in report\n");
87 zpff
= kzalloc(sizeof(struct zpff_device
), GFP_KERNEL
);
91 set_bit(FF_RUMBLE
, dev
->ffbit
);
93 error
= input_ff_create_memless(dev
, zpff
, zpff_play
);
99 zpff
->report
= report
;
100 zpff
->report
->field
[0]->value
[0] = 0x00;
101 zpff
->report
->field
[1]->value
[0] = 0x02;
102 zpff
->report
->field
[2]->value
[0] = 0x00;
103 zpff
->report
->field
[3]->value
[0] = 0x00;
104 usbhid_submit_report(hid
, zpff
->report
, USB_DIR_OUT
);
106 dev_info(&hid
->dev
, "force feedback for Zeroplus based devices by "
107 "Anssi Hannula <anssi.hannula@gmail.com>\n");
112 static int zp_probe(struct hid_device
*hdev
, const struct hid_device_id
*id
)
116 ret
= hid_parse(hdev
);
118 dev_err(&hdev
->dev
, "parse failed\n");
122 ret
= hid_hw_start(hdev
, HID_CONNECT_DEFAULT
& ~HID_CONNECT_FF
);
124 dev_err(&hdev
->dev
, "hw start failed\n");
135 static const struct hid_device_id zp_devices
[] = {
136 { HID_USB_DEVICE(USB_VENDOR_ID_ZEROPLUS
, 0x0005) },
137 { HID_USB_DEVICE(USB_VENDOR_ID_ZEROPLUS
, 0x0030) },
140 MODULE_DEVICE_TABLE(hid
, zp_devices
);
142 static struct hid_driver zp_driver
= {
144 .id_table
= zp_devices
,
148 static int zp_init(void)
150 return hid_register_driver(&zp_driver
);
153 static void zp_exit(void)
155 hid_unregister_driver(&zp_driver
);
158 module_init(zp_init
);
159 module_exit(zp_exit
);
160 MODULE_LICENSE("GPL");