linux/drivers/hid/hid-retrode.c
Thomas Gleixner 2874c5fd28 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
Based on 1 normalized pattern(s):

  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

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-or-later

has been chosen to replace the boilerplate/reference in 3029 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Allison Randal <allison@lohutok.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190527070032.746973796@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-30 11:26:32 -07:00

98 lines
1.9 KiB
C

// 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");