412 lines
11 KiB
C
412 lines
11 KiB
C
/* $NetBSD: ums.c,v 1.73 2008/05/24 16:40:58 cube Exp $ */
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/*
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* Copyright (c) 1998 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Lennart Augustsson (lennart@augustsson.net) at
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* Carlstedt Research & Technology.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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* HID spec: http://www.usb.org/developers/devclass_docs/HID1_11.pdf
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: ums.c,v 1.73 2008/05/24 16:40:58 cube Exp $");
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/kernel.h>
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#include <sys/malloc.h>
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#include <sys/device.h>
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#include <sys/ioctl.h>
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#include <sys/tty.h>
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#include <sys/file.h>
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#include <sys/select.h>
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#include <sys/proc.h>
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#include <sys/vnode.h>
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#include <sys/poll.h>
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#include <dev/usb/usb.h>
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#include <dev/usb/usbhid.h>
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#include <dev/usb/usbdi.h>
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#include <dev/usb/usbdi_util.h>
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#include <dev/usb/usbdevs.h>
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#include <dev/usb/usb_quirks.h>
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#include <dev/usb/uhidev.h>
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#include <dev/usb/hid.h>
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#include <dev/wscons/wsconsio.h>
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#include <dev/wscons/wsmousevar.h>
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#ifdef USB_DEBUG
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#define DPRINTF(x) if (umsdebug) logprintf x
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#define DPRINTFN(n,x) if (umsdebug>(n)) logprintf x
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int umsdebug = 0;
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#else
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#define DPRINTF(x)
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#define DPRINTFN(n,x)
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#endif
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#define UMS_BUT(i) ((i) == 1 || (i) == 2 ? 3 - (i) : i)
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#define UMSUNIT(s) (minor(s))
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#define PS2LBUTMASK x01
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#define PS2RBUTMASK x02
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#define PS2MBUTMASK x04
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#define PS2BUTMASK 0x0f
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#define MAX_BUTTONS 31 /* must not exceed size of sc_buttons */
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struct ums_softc {
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struct uhidev sc_hdev;
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struct hid_location sc_loc_x, sc_loc_y, sc_loc_z, sc_loc_w;
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struct hid_location sc_loc_btn[MAX_BUTTONS];
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int sc_enabled;
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int flags; /* device configuration */
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#define UMS_Z 0x01 /* z direction available */
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#define UMS_SPUR_BUT_UP 0x02 /* spurious button up events */
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#define UMS_REVZ 0x04 /* Z-axis is reversed */
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int nbuttons;
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u_int32_t sc_buttons; /* mouse button status */
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device_t sc_wsmousedev;
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char sc_dying;
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};
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#define MOUSE_FLAGS_MASK (HIO_CONST|HIO_RELATIVE)
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#define MOUSE_FLAGS (HIO_RELATIVE)
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Static void ums_intr(struct uhidev *addr, void *ibuf, u_int len);
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Static int ums_enable(void *);
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Static void ums_disable(void *);
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Static int ums_ioctl(void *, u_long, void *, int, struct lwp * );
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const struct wsmouse_accessops ums_accessops = {
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ums_enable,
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ums_ioctl,
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ums_disable,
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};
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int ums_match(device_t, cfdata_t, void *);
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void ums_attach(device_t, device_t, void *);
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void ums_childdet(device_t, device_t);
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int ums_detach(device_t, int);
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int ums_activate(device_t, enum devact);
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extern struct cfdriver ums_cd;
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CFATTACH_DECL2_NEW(ums, sizeof(struct ums_softc), ums_match, ums_attach,
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ums_detach, ums_activate, NULL, ums_childdet);
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int
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ums_match(device_t parent, cfdata_t match, void *aux)
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{
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struct uhidev_attach_arg *uha = aux;
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int size;
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void *desc;
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uhidev_get_report_desc(uha->parent, &desc, &size);
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if (!hid_is_collection(desc, size, uha->reportid,
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HID_USAGE2(HUP_GENERIC_DESKTOP, HUG_MOUSE)))
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return (UMATCH_NONE);
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return (UMATCH_IFACECLASS);
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}
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void
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ums_attach(device_t parent, device_t self, void *aux)
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{
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struct ums_softc *sc = device_private(self);
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struct uhidev_attach_arg *uha = aux;
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struct wsmousedev_attach_args a;
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int size;
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void *desc;
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u_int32_t flags, quirks;
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int i, wheel;
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struct hid_location loc_btn;
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aprint_naive("\n");
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sc->sc_hdev.sc_dev = self;
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sc->sc_hdev.sc_intr = ums_intr;
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sc->sc_hdev.sc_parent = uha->parent;
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sc->sc_hdev.sc_report_id = uha->reportid;
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quirks = usbd_get_quirks(uha->parent->sc_udev)->uq_flags;
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if (quirks & UQ_MS_REVZ)
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sc->flags |= UMS_REVZ;
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if (quirks & UQ_SPUR_BUT_UP)
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sc->flags |= UMS_SPUR_BUT_UP;
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uhidev_get_report_desc(uha->parent, &desc, &size);
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if (!pmf_device_register(self, NULL, NULL))
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aprint_error_dev(self, "couldn't establish power handler\n");
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if (!hid_locate(desc, size, HID_USAGE2(HUP_GENERIC_DESKTOP, HUG_X),
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uha->reportid, hid_input, &sc->sc_loc_x, &flags)) {
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aprint_error("\n%s: mouse has no X report\n",
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USBDEVNAME(sc->sc_hdev.sc_dev));
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USB_ATTACH_ERROR_RETURN;
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}
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if ((flags & MOUSE_FLAGS_MASK) != MOUSE_FLAGS) {
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aprint_error("\n%s: X report 0x%04x not supported\n",
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USBDEVNAME(sc->sc_hdev.sc_dev), flags);
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USB_ATTACH_ERROR_RETURN;
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}
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if (!hid_locate(desc, size, HID_USAGE2(HUP_GENERIC_DESKTOP, HUG_Y),
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uha->reportid, hid_input, &sc->sc_loc_y, &flags)) {
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aprint_error("\n%s: mouse has no Y report\n",
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USBDEVNAME(sc->sc_hdev.sc_dev));
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USB_ATTACH_ERROR_RETURN;
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}
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if ((flags & MOUSE_FLAGS_MASK) != MOUSE_FLAGS) {
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aprint_error("\n%s: Y report 0x%04x not supported\n",
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USBDEVNAME(sc->sc_hdev.sc_dev), flags);
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USB_ATTACH_ERROR_RETURN;
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}
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/* Try the wheel first as the Z activator since it's tradition. */
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wheel = hid_locate(desc, size, HID_USAGE2(HUP_GENERIC_DESKTOP,
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HUG_WHEEL),
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uha->reportid, hid_input, &sc->sc_loc_z, &flags);
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if (wheel) {
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if ((flags & MOUSE_FLAGS_MASK) != MOUSE_FLAGS) {
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aprint_verbose("\n%s: Wheel report 0x%04x not "
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"supported\n", USBDEVNAME(sc->sc_hdev.sc_dev),
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flags);
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sc->sc_loc_z.size = 0; /* Bad Z coord, ignore it */
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} else {
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sc->flags |= UMS_Z;
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/* Wheels need the Z axis reversed. */
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sc->flags ^= UMS_REVZ;
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}
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/*
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* We might have both a wheel and Z direction, if so put
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* put the Z on the W coordinate.
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*/
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if (hid_locate(desc, size, HID_USAGE2(HUP_GENERIC_DESKTOP,
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HUG_Z),
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uha->reportid, hid_input, &sc->sc_loc_w, &flags)) {
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if ((flags & MOUSE_FLAGS_MASK) != MOUSE_FLAGS) {
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aprint_verbose("\n%s: Z report 0x%04x not "
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"supported\n",
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USBDEVNAME(sc->sc_hdev.sc_dev), flags);
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sc->sc_loc_w.size = 0; /* Bad Z, ignore */
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}
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}
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} else if (hid_locate(desc, size, HID_USAGE2(HUP_GENERIC_DESKTOP,
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HUG_Z),
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uha->reportid, hid_input, &sc->sc_loc_z, &flags)) {
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if ((flags & MOUSE_FLAGS_MASK) != MOUSE_FLAGS) {
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aprint_verbose("\n%s: Z report 0x%04x not supported\n",
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USBDEVNAME(sc->sc_hdev.sc_dev), flags);
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sc->sc_loc_z.size = 0; /* Bad Z coord, ignore it */
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} else {
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sc->flags |= UMS_Z;
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}
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}
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/* figure out the number of buttons */
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for (i = 1; i <= MAX_BUTTONS; i++)
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if (!hid_locate(desc, size, HID_USAGE2(HUP_BUTTON, i),
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uha->reportid, hid_input, &loc_btn, 0))
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break;
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sc->nbuttons = i - 1;
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aprint_normal(": %d button%s%s\n",
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sc->nbuttons, sc->nbuttons == 1 ? "" : "s",
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sc->flags & UMS_Z ? " and Z dir." : "");
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for (i = 1; i <= sc->nbuttons; i++)
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hid_locate(desc, size, HID_USAGE2(HUP_BUTTON, i),
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uha->reportid, hid_input,
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&sc->sc_loc_btn[i-1], 0);
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#ifdef USB_DEBUG
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DPRINTF(("ums_attach: sc=%p\n", sc));
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DPRINTF(("ums_attach: X\t%d/%d\n",
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sc->sc_loc_x.pos, sc->sc_loc_x.size));
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DPRINTF(("ums_attach: Y\t%d/%d\n",
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sc->sc_loc_y.pos, sc->sc_loc_y.size));
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if (sc->flags & UMS_Z)
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DPRINTF(("ums_attach: Z\t%d/%d\n",
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sc->sc_loc_z.pos, sc->sc_loc_z.size));
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for (i = 1; i <= sc->nbuttons; i++) {
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DPRINTF(("ums_attach: B%d\t%d/%d\n",
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i, sc->sc_loc_btn[i-1].pos,sc->sc_loc_btn[i-1].size));
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}
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#endif
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a.accessops = &ums_accessops;
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a.accesscookie = sc;
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sc->sc_wsmousedev = config_found(self, &a, wsmousedevprint);
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USB_ATTACH_SUCCESS_RETURN;
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}
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int
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ums_activate(device_ptr_t self, enum devact act)
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{
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struct ums_softc *sc = device_private(self);
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int rv = 0;
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switch (act) {
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case DVACT_ACTIVATE:
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return (EOPNOTSUPP);
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case DVACT_DEACTIVATE:
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if (sc->sc_wsmousedev != NULL)
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rv = config_deactivate(sc->sc_wsmousedev);
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sc->sc_dying = 1;
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break;
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}
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return (rv);
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}
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void
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ums_childdet(device_t self, device_t child)
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{
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struct ums_softc *sc = device_private(self);
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KASSERT(sc->sc_wsmousedev == child);
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sc->sc_wsmousedev = NULL;
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}
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int
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ums_detach(device_t self, int flags)
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{
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struct ums_softc *sc = device_private(self);
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int rv = 0;
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DPRINTF(("ums_detach: sc=%p flags=%d\n", sc, flags));
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/* No need to do reference counting of ums, wsmouse has all the goo. */
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if (sc->sc_wsmousedev != NULL)
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rv = config_detach(sc->sc_wsmousedev, flags);
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pmf_device_deregister(self);
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return (rv);
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}
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void
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ums_intr(struct uhidev *addr, void *ibuf, u_int len)
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{
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struct ums_softc *sc = (struct ums_softc *)addr;
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int dx, dy, dz, dw;
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u_int32_t buttons = 0;
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int i;
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int s;
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DPRINTFN(5,("ums_intr: len=%d\n", len));
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dx = hid_get_data(ibuf, &sc->sc_loc_x);
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dy = -hid_get_data(ibuf, &sc->sc_loc_y);
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dz = hid_get_data(ibuf, &sc->sc_loc_z);
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dw = hid_get_data(ibuf, &sc->sc_loc_w);
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if (sc->flags & UMS_REVZ)
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dz = -dz;
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for (i = 0; i < sc->nbuttons; i++)
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if (hid_get_data(ibuf, &sc->sc_loc_btn[i]))
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buttons |= (1 << UMS_BUT(i));
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if (dx != 0 || dy != 0 || dz != 0 || dw != 0 ||
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buttons != sc->sc_buttons) {
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DPRINTFN(10, ("ums_intr: x:%d y:%d z:%d w:%d buttons:0x%x\n",
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dx, dy, dz, dw, buttons));
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sc->sc_buttons = buttons;
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if (sc->sc_wsmousedev != NULL) {
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s = spltty();
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wsmouse_input(sc->sc_wsmousedev,
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buttons,
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dx, dy, dz, dw,
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WSMOUSE_INPUT_DELTA);
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splx(s);
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}
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}
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}
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Static int
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ums_enable(void *v)
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{
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struct ums_softc *sc = v;
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DPRINTFN(1,("ums_enable: sc=%p\n", sc));
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if (sc->sc_dying)
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return (EIO);
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if (sc->sc_enabled)
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return (EBUSY);
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sc->sc_enabled = 1;
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sc->sc_buttons = 0;
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return (uhidev_open(&sc->sc_hdev));
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}
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Static void
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ums_disable(void *v)
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{
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struct ums_softc *sc = v;
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DPRINTFN(1,("ums_disable: sc=%p\n", sc));
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#ifdef DIAGNOSTIC
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if (!sc->sc_enabled) {
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printf("ums_disable: not enabled\n");
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return;
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}
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#endif
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sc->sc_enabled = 0;
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uhidev_close(&sc->sc_hdev);
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}
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Static int
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ums_ioctl(void *v, u_long cmd, void *data, int flag,
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struct lwp * p)
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{
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switch (cmd) {
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case WSMOUSEIO_GTYPE:
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*(u_int *)data = WSMOUSE_TYPE_USB;
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return (0);
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}
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return (EPASSTHROUGH);
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}
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