1 /* $NetBSD: uhid.c,v 1.131 2025/12/13 12:22:20 jmcneill Exp $ */ 2 3 /* 4 * Copyright (c) 1998, 2004, 2008, 2012 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Lennart Augustsson (lennart (at) augustsson.net) at 9 * Carlstedt Research & Technology and Matthew R. Green (mrg (at) eterna23.net). 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 21 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 22 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 23 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 24 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 30 * POSSIBILITY OF SUCH DAMAGE. 31 */ 32 33 /* 34 * HID spec: http://www.usb.org/developers/devclass_docs/HID1_11.pdf 35 */ 36 37 #include <sys/cdefs.h> 38 __KERNEL_RCSID(0, "$NetBSD: uhid.c,v 1.131 2025/12/13 12:22:20 jmcneill Exp $"); 39 40 #ifdef _KERNEL_OPT 41 #include "opt_compat_netbsd.h" 42 #include "opt_hid.h" 43 #endif 44 45 #include <sys/param.h> 46 #include <sys/types.h> 47 48 #include <sys/compat_stub.h> 49 #include <sys/conf.h> 50 #include <sys/device.h> 51 #include <sys/ioctl.h> 52 #include <sys/kernel.h> 53 #include <sys/kmem.h> 54 #include <sys/proc.h> 55 #include <sys/systm.h> 56 #include <sys/tty.h> 57 #include <sys/container_of.h> 58 59 #include <dev/usb/usb.h> 60 #include <dev/usb/usbhid.h> 61 62 #include <dev/usb/usbdevs.h> 63 #include <dev/usb/usbdi.h> 64 #include <dev/usb/usbdi_util.h> 65 #include <dev/usb/usb_quirks.h> 66 #include <dev/hid/hid.h> 67 #include <dev/hid/uhid.h> 68 69 #include <dev/usb/uhidev.h> 70 71 #include "ioconf.h" 72 73 #ifdef UHID_DEBUG 74 #define DPRINTF(x) if (uhiddebug) printf x 75 #define DPRINTFN(n,x) if (uhiddebug>(n)) printf x 76 int uhiddebug = 0; 77 #else 78 #define DPRINTF(x) 79 #define DPRINTFN(n,x) 80 #endif 81 82 struct uhid_usb_softc { 83 struct uhid_softc sc_base; 84 struct uhidev *sc_hdev; 85 struct usbd_device *sc_udev; 86 }; 87 88 static int uhid_match(device_t, cfdata_t, void *); 89 static void uhid_attach(device_t, device_t, void *); 90 static int uhid_detach(device_t, int); 91 92 static int uhid_usb_ioctl(struct uhid_softc *, u_long, void *, int, 93 struct lwp *); 94 95 CFATTACH_DECL_NEW(uhid_usb, sizeof(struct uhid_usb_softc), 96 uhid_match, uhid_attach, uhid_detach, NULL); 97 98 static int 99 uhid_match(device_t parent, cfdata_t match, void *aux) 100 { 101 #ifdef UHID_DEBUG 102 struct uhidev_attach_arg *uha = aux; 103 #endif 104 105 DPRINTF(("uhid_match: report=%d\n", uha->reportid)); 106 107 if (match->cf_flags & 1) 108 return UMATCH_HIGHEST; 109 else 110 return UMATCH_IFACECLASS_GENERIC; 111 } 112 113 static void 114 uhid_attach(device_t parent, device_t self, void *aux) 115 { 116 struct uhid_usb_softc *usc = device_private(self); 117 struct uhid_softc *sc = &usc->sc_base; 118 struct uhidev_attach_arg *uha = aux; 119 120 sc->sc_dev = self; 121 sc->sc_report_id = uha->reportid; 122 sc->sc_ioctl = uhid_usb_ioctl; 123 sc->sc_hidev = uha->hidev; 124 usc->sc_hdev = uha->parent; 125 usc->sc_udev = uha->uiaa->uiaa_device; 126 127 uhid_attach_common(sc); 128 } 129 130 static int 131 uhid_detach(device_t self, int flags) 132 { 133 struct uhid_usb_softc *usc = device_private(self); 134 struct uhid_softc *sc = &usc->sc_base; 135 136 return uhid_detach_common(sc); 137 } 138 139 static int 140 uhid_usb_ioctl(struct uhid_softc *sc, u_long cmd, void *addr, int flag, 141 struct lwp *l) 142 { 143 struct uhid_usb_softc *usc = 144 container_of(sc, struct uhid_usb_softc, sc_base); 145 int size; 146 usbd_status err; 147 148 DPRINTFN(2, ("uhidioctl: cmd=%lx\n", cmd)); 149 150 switch (cmd) { 151 case USB_GET_DEVICE_DESC: 152 *(usb_device_descriptor_t *)addr = 153 *usbd_get_device_descriptor(usc->sc_udev); 154 break; 155 156 case USB_GET_DEVICEINFO: 157 usbd_fill_deviceinfo(usc->sc_udev, 158 (struct usb_device_info *)addr, 0); 159 break; 160 case USB_GET_DEVICEINFO_30: 161 MODULE_HOOK_CALL(usb_subr_fill_30_hook, 162 (usc->sc_udev, 163 (struct usb_device_info30 *)addr, 0, 164 usbd_devinfo_vp, usbd_printBCD), 165 enosys(), err); 166 if (err == 0) 167 return 0; 168 break; 169 case USB_GET_STRING_DESC: 170 { 171 struct usb_string_desc *si = (struct usb_string_desc *)addr; 172 err = usbd_get_string_desc(usc->sc_udev, 173 si->usd_string_index, 174 si->usd_language_id, &si->usd_desc, &size); 175 if (err) 176 return EINVAL; 177 break; 178 } 179 default: 180 return EINVAL; 181 } 182 183 return 0; 184 } 185
Indexes created Sun Oct 25 00:26:45 UTC 2026