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
|
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* HID driver for Retrode 2 controller adapter and plug-in extensions
*
* Copyright (c) 2017 Bastien Nocera <hadess@hadess.net>
*/
/*
*/
#include <linux/input.h>
#include <linux/slab.h>
#include <linux/hid.h>
#include <linux/module.h>
#include "hid-ids.h"
#define CONTROLLER_NAME_BASE "Retrode"
static int retrode_input_configured(struct hid_device *hdev,
struct hid_input *hi)
{
struct hid_field *field = hi->report->field[0];
const char *suffix;
int number = 0;
char *name;
switch (field->report->id) {
case 0:
suffix = "SNES Mouse";
break;
case 1:
case 2:
suffix = "SNES / N64";
number = field->report->id;
break;
case 3:
case 4:
suffix = "Mega Drive";
number = field->report->id - 2;
break;
default:
hid_err(hdev, "Got unhandled report id %d\n", field->report->id);
suffix = "Unknown";
}
if (number)
name = devm_kasprintf(&hdev->dev, GFP_KERNEL,
"%s %s #%d", CONTROLLER_NAME_BASE,
suffix, number);
else
name = devm_kasprintf(&hdev->dev, GFP_KERNEL,
"%s %s", CONTROLLER_NAME_BASE, suffix);
if (!name)
return -ENOMEM;
hi->input->name = name;
return 0;
}
static int retrode_probe(struct hid_device *hdev,
const struct hid_device_id *id)
{
int ret;
/* Has no effect on the mouse device */
hdev->quirks |= HID_QUIRK_MULTI_INPUT;
ret = hid_parse(hdev);
if (ret)
return ret;
ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
if (ret)
return ret;
return 0;
}
static const struct hid_device_id retrode_devices[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_FUTURE_TECHNOLOGY, USB_DEVICE_ID_RETRODE2) },
{ }
};
MODULE_DEVICE_TABLE(hid, retrode_devices);
static struct hid_driver retrode_driver = {
.name = "hid-retrode",
.id_table = retrode_devices,
.input_configured = retrode_input_configured,
.probe = retrode_probe,
};
module_hid_driver(retrode_driver);
MODULE_LICENSE("GPL");
|
