uhid_si.c revision 1.1 
1/* $NetBSD: uhid_si.c,v 1.1 2025/12/08 23:00:22 jmcneill Exp $ */
2
3/*-
4 * Copyright (c) 2025 Jared McNeill <jmcneill@invisible.ca>
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 *    notice, this list of conditions and the following disclaimer in the
14 *    documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
21 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
22 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
23 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
24 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 */
28
29#include <sys/cdefs.h>
30__KERNEL_RCSID(0, "$NetBSD: uhid_si.c,v 1.1 2025/12/08 23:00:22 jmcneill Exp $");
31
32#include <sys/param.h>
33#include <sys/bus.h>
34#include <sys/device.h>
35#include <sys/systm.h>
36#include <sys/tty.h>
37
38#include <dev/usb/usb.h>
39#include <dev/hid/uhid.h>
40
41#include "si.h"
42
43#define UHID_SI_VENDOR	0x057e	/* Nintendo */
44#define UHID_SI_PRODUCT	0x0337	/* GameCube adapter */
45
46static int	uhid_si_match(device_t, cfdata_t, void *);
47static void	uhid_si_attach(device_t, device_t, void *);
48
49static int	uhid_si_ioctl(struct uhid_softc *, u_long, void *, int,
50			      struct lwp *);
51
52CFATTACH_DECL_NEW(uhid_si, sizeof(struct uhid_softc),
53	uhid_si_match, uhid_si_attach, NULL, NULL);
54
55static int
56uhid_si_match(device_t parent, cfdata_t cf, void *aux)
57{
58	return 1;
59}
60
61static void
62uhid_si_attach(device_t parent, device_t self, void *aux)
63{
64	struct uhid_softc * const sc = device_private(self);
65	struct si_attach_args * const saa = aux;
66
67	sc->sc_dev = self;
68	sc->sc_report_id = saa->saa_index + 1;
69	sc->sc_ioctl = uhid_si_ioctl;
70	sc->sc_hidev = saa->saa_hidev;
71
72	uhid_attach_common(sc);
73}
74
75static int
76uhid_si_ioctl(struct uhid_softc *sc, u_long cmd, void *addr, int flag,
77    struct lwp *l)
78{
79	struct usb_device_info *udi;
80
81	switch (cmd) {
82	case USB_GET_DEVICEINFO:
83		udi = addr;
84		udi->udi_vendorNo = UHID_SI_VENDOR;
85		udi->udi_productNo = UHID_SI_PRODUCT;
86		snprintf(udi->udi_vendor, sizeof(udi->udi_vendor), "Nintendo");
87		snprintf(udi->udi_product, sizeof(udi->udi_product),
88		    "GameCube Controller");
89		return 0;
90		break;
91	}
92
93	return EINVAL;
94}
95