mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-08-27 19:29:37 +00:00
![Bastien Nocera](/assets/img/avatar_default.png)
This driver does 2 things: - Apply the MULTI_INPUT quirk to create separate joypad device nodes for each one of the 4 connectors. - Rename the input devices so that their names are different, and allow users to recognise which device corresponds to which physical port, including the SNES (Mario Paint) Mouse. Signed-off-by: Bastien Nocera <hadess@hadess.net> Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
100 lines
2.1 KiB
C
100 lines
2.1 KiB
C
/*
|
|
* HID driver for Retrode 2 controller adapter and plug-in extensions
|
|
*
|
|
* Copyright (c) 2017 Bastien Nocera <hadess@hadess.net>
|
|
*/
|
|
|
|
/*
|
|
* This program is free software; you can redistribute it and/or modify it
|
|
* under the terms of the GNU General Public License as published by the Free
|
|
* Software Foundation; either version 2 of the License, or (at your option)
|
|
* any later version.
|
|
*/
|
|
|
|
#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");
|