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      1 /* $NetBSD: uhid_si.c,v 1.1 2026/01/09 22:54:30 jmcneill Exp $ */
      2 
      3 /*-
      4  * Copyright (c) 2025 Jared McNeill <jmcneill (at) 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 2026/01/09 22:54:30 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 
     46 static int	uhid_si_match(device_t, cfdata_t, void *);
     47 static void	uhid_si_attach(device_t, device_t, void *);
     48 
     49 static int	uhid_si_ioctl(struct uhid_softc *, u_long, void *, int,
     50 			      struct lwp *);
     51 
     52 CFATTACH_DECL_NEW(uhid_si, sizeof(struct uhid_softc),
     53 	uhid_si_match, uhid_si_attach, NULL, NULL);
     54 
     55 static int
     56 uhid_si_match(device_t parent, cfdata_t cf, void *aux)
     57 {
     58 	return 1;
     59 }
     60 
     61 static void
     62 uhid_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 
     75 static int
     76 uhid_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