1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
|
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* HID driver for some chicony "special" devices
*
* Copyright (c) 1999 Andreas Gal
* Copyright (c) 2000-2005 Vojtech Pavlik <vojtech@suse.cz>
* Copyright (c) 2005 Michael Haboustak <mike-@cinci.rr.com> for Concept2, Inc
* Copyright (c) 2006-2007 Jiri Kosina
* Copyright (c) 2007 Paul Walmsley
* Copyright (c) 2008 Jiri Slaby
*/
/*
*/
#include <linux/device.h>
#include <linux/input.h>
#include <linux/hid.h>
#include <linux/module.h>
#include <linux/usb.h>
#include "hid-ids.h"
#define CH_WIRELESS_CTL_REPORT_ID 0x11
static int ch_report_wireless(struct hid_report *report, u8 *data, int size)
{
struct hid_device *hdev = report->device;
struct input_dev *input;
if (report->id != CH_WIRELESS_CTL_REPORT_ID || report->maxfield != 1)
return 0;
input = report->field[0]->hidinput->input;
if (!input) {
hid_warn(hdev, "can't find wireless radio control's input");
return 0;
}
input_report_key(input, KEY_RFKILL, 1);
input_sync(input);
input_report_key(input, KEY_RFKILL, 0);
input_sync(input);
return 1;
}
static int ch_raw_event(struct hid_device *hdev,
struct hid_report *report, u8 *data, int size)
{
if (report->application == HID_GD_WIRELESS_RADIO_CTLS)
return ch_report_wireless(report, data, size);
return 0;
}
#define ch_map_key_clear(c) hid_map_usage_clear(hi, usage, bit, max, \
EV_KEY, (c))
static int ch_input_mapping(struct hid_device *hdev, struct hid_input *hi,
struct hid_field *field, struct hid_usage *usage,
unsigned long **bit, int *max)
{
if ((usage->hid & HID_USAGE_PAGE) != HID_UP_MSVENDOR)
return 0;
set_bit(EV_REP, hi->input->evbit);
switch (usage->hid & HID_USAGE) {
case 0xff01: ch_map_key_clear(BTN_1); break;
case 0xff02: ch_map_key_clear(BTN_2); break;
case 0xff03: ch_map_key_clear(BTN_3); break;
case 0xff04: ch_map_key_clear(BTN_4); break;
case 0xff05: ch_map_key_clear(BTN_5); break;
case 0xff06: ch_map_key_clear(BTN_6); break;
case 0xff07: ch_map_key_clear(BTN_7); break;
case 0xff08: ch_map_key_clear(BTN_8); break;
case 0xff09: ch_map_key_clear(BTN_9); break;
case 0xff0a: ch_map_key_clear(BTN_A); break;
case 0xff0b: ch_map_key_clear(BTN_B); break;
case 0x00f1: ch_map_key_clear(KEY_WLAN); break;
case 0x00f2: ch_map_key_clear(KEY_BRIGHTNESSDOWN); break;
case 0x00f3: ch_map_key_clear(KEY_BRIGHTNESSUP); break;
case 0x00f4: ch_map_key_clear(KEY_DISPLAY_OFF); break;
case 0x00f7: ch_map_key_clear(KEY_CAMERA); break;
case 0x00f8: ch_map_key_clear(KEY_PROG1); break;
default:
return 0;
}
return 1;
}
static __u8 *ch_switch12_report_fixup(struct hid_device *hdev, __u8 *rdesc,
unsigned int *rsize)
{
struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
if (intf->cur_altsetting->desc.bInterfaceNumber == 1) {
/* Change usage maximum and logical maximum from 0x7fff to
* 0x2fff, so they don't exceed HID_MAX_USAGES */
switch (hdev->product) {
case USB_DEVICE_ID_CHICONY_ACER_SWITCH12:
if (*rsize >= 128 && rdesc[64] == 0xff && rdesc[65] == 0x7f
&& rdesc[69] == 0xff && rdesc[70] == 0x7f) {
hid_info(hdev, "Fixing up report descriptor\n");
rdesc[65] = rdesc[70] = 0x2f;
}
break;
}
}
return rdesc;
}
static int ch_probe(struct hid_device *hdev, const struct hid_device_id *id)
{
int ret;
hdev->quirks |= HID_QUIRK_INPUT_PER_APP;
ret = hid_parse(hdev);
if (ret) {
hid_err(hdev, "Chicony hid parse failed: %d\n", ret);
return ret;
}
ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
if (ret) {
hid_err(hdev, "Chicony hw start failed: %d\n", ret);
return ret;
}
return 0;
}
static const struct hid_device_id ch_devices[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_TACTICAL_PAD) },
{ HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_WIRELESS2) },
{ HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_WIRELESS3) },
{ HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_ACER_SWITCH12) },
{ }
};
MODULE_DEVICE_TABLE(hid, ch_devices);
static struct hid_driver ch_driver = {
.name = "chicony",
.id_table = ch_devices,
.report_fixup = ch_switch12_report_fixup,
.input_mapping = ch_input_mapping,
.probe = ch_probe,
.raw_event = ch_raw_event,
};
module_hid_driver(ch_driver);
MODULE_LICENSE("GPL");
|
