File: [local] / sys / dev / usb / ums.c (download)
Revision 1.1, Tue Mar 4 16:14:28 2008 UTC (16 years, 6 months ago) by nbrk
Branch point for: MAIN
Initial revision
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/* $OpenBSD: ums.c,v 1.25 2007/06/14 10:11:16 mbalmer Exp $ */
/* $NetBSD: ums.c,v 1.60 2003/03/11 16:44:00 augustss Exp $ */
/*
* Copyright (c) 1998 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Lennart Augustsson (lennart@augustsson.net) at
* Carlstedt Research & Technology.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the NetBSD
* Foundation, Inc. and its contributors.
* 4. Neither the name of The NetBSD Foundation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
/*
* HID spec: http://www.usb.org/developers/devclass_docs/HID1_11.pdf
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/malloc.h>
#include <sys/device.h>
#include <sys/ioctl.h>
#include <sys/tty.h>
#include <sys/file.h>
#include <sys/selinfo.h>
#include <sys/proc.h>
#include <sys/vnode.h>
#include <sys/poll.h>
#include <dev/usb/usb.h>
#include <dev/usb/usbhid.h>
#include <dev/usb/usbdi.h>
#include <dev/usb/usbdi_util.h>
#include <dev/usb/usbdevs.h>
#include <dev/usb/usb_quirks.h>
#include <dev/usb/uhidev.h>
#include <dev/usb/hid.h>
#include <dev/wscons/wsconsio.h>
#include <dev/wscons/wsmousevar.h>
#ifdef USB_DEBUG
#define DPRINTF(x) do { if (umsdebug) printf x; } while (0)
#define DPRINTFN(n,x) do { if (umsdebug>(n)) printf x; } while (0)
int umsdebug = 0;
#else
#define DPRINTF(x)
#define DPRINTFN(n,x)
#endif
#define UMS_BUT(i) ((i) == 1 || (i) == 2 ? 3 - (i) : i)
#define UMSUNIT(s) (minor(s))
#define PS2LBUTMASK x01
#define PS2RBUTMASK x02
#define PS2MBUTMASK x04
#define PS2BUTMASK 0x0f
#define MAX_BUTTONS 16 /* must not exceed size of sc_buttons */
struct ums_softc {
struct uhidev sc_hdev;
struct hid_location sc_loc_x, sc_loc_y, sc_loc_z, sc_loc_w;
struct hid_location sc_loc_btn[MAX_BUTTONS];
int sc_enabled;
int flags; /* device configuration */
#define UMS_Z 0x01 /* z direction available */
#define UMS_SPUR_BUT_UP 0x02 /* spurious button up events */
#define UMS_REVZ 0x04 /* Z-axis is reversed */
int nbuttons;
u_int32_t sc_buttons; /* mouse button status */
struct device *sc_wsmousedev;
char sc_dying;
};
#define MOUSE_FLAGS_MASK (HIO_CONST|HIO_RELATIVE)
#define MOUSE_FLAGS (HIO_RELATIVE)
void ums_intr(struct uhidev *addr, void *ibuf, u_int len);
int ums_enable(void *);
void ums_disable(void *);
int ums_ioctl(void *, u_long, caddr_t, int, struct proc *);
const struct wsmouse_accessops ums_accessops = {
ums_enable,
ums_ioctl,
ums_disable,
};
int ums_match(struct device *, void *, void *);
void ums_attach(struct device *, struct device *, void *);
int ums_detach(struct device *, int);
int ums_activate(struct device *, enum devact);
struct cfdriver ums_cd = {
NULL, "ums", DV_DULL
};
const struct cfattach ums_ca = {
sizeof(struct ums_softc),
ums_match,
ums_attach,
ums_detach,
ums_activate,
};
int
ums_match(struct device *parent, void *match, void *aux)
{
struct usb_attach_arg *uaa = aux;
struct uhidev_attach_arg *uha = (struct uhidev_attach_arg *)uaa;
int size;
void *desc;
uhidev_get_report_desc(uha->parent, &desc, &size);
if (!hid_is_collection(desc, size, uha->reportid,
HID_USAGE2(HUP_GENERIC_DESKTOP, HUG_MOUSE)))
return (UMATCH_NONE);
return (UMATCH_IFACECLASS);
}
void
ums_attach(struct device *parent, struct device *self, void *aux)
{
struct ums_softc *sc = (struct ums_softc *)self;
struct usb_attach_arg *uaa = aux;
struct uhidev_attach_arg *uha = (struct uhidev_attach_arg *)uaa;
struct wsmousedev_attach_args a;
int size;
void *desc;
u_int32_t flags, quirks;
int i;
struct hid_location loc_btn;
sc->sc_hdev.sc_intr = ums_intr;
sc->sc_hdev.sc_parent = uha->parent;
sc->sc_hdev.sc_report_id = uha->reportid;
quirks = usbd_get_quirks(uha->parent->sc_udev)->uq_flags;
if (quirks & UQ_MS_REVZ)
sc->flags |= UMS_REVZ;
if (quirks & UQ_SPUR_BUT_UP)
sc->flags |= UMS_SPUR_BUT_UP;
uhidev_get_report_desc(uha->parent, &desc, &size);
if (!hid_locate(desc, size, HID_USAGE2(HUP_GENERIC_DESKTOP, HUG_X),
uha->reportid, hid_input, &sc->sc_loc_x, &flags)) {
printf("\n%s: mouse has no X report\n",
sc->sc_hdev.sc_dev.dv_xname);
return;
}
if ((flags & MOUSE_FLAGS_MASK) != MOUSE_FLAGS) {
printf("\n%s: X report 0x%04x not supported\n",
sc->sc_hdev.sc_dev.dv_xname, flags);
return;
}
if (!hid_locate(desc, size, HID_USAGE2(HUP_GENERIC_DESKTOP, HUG_Y),
uha->reportid, hid_input, &sc->sc_loc_y, &flags)) {
printf("\n%s: mouse has no Y report\n",
sc->sc_hdev.sc_dev.dv_xname);
return;
}
if ((flags & MOUSE_FLAGS_MASK) != MOUSE_FLAGS) {
printf("\n%s: Y report 0x%04x not supported\n",
sc->sc_hdev.sc_dev.dv_xname, flags);
return;
}
/* Try the wheel as Z activator first */
if (hid_locate(desc, size, HID_USAGE2(HUP_GENERIC_DESKTOP, HUG_WHEEL),
uha->reportid, hid_input, &sc->sc_loc_z, &flags)) {
if ((flags & MOUSE_FLAGS_MASK) != MOUSE_FLAGS) {
DPRINTF(("\n%s: Wheel report 0x%04x not supported\n",
sc->sc_hdev.sc_dev.dv_xname, flags));
sc->sc_loc_z.size = 0; /* Bad Z coord, ignore it */
} else {
sc->flags |= UMS_Z;
/* Wheels need the Z axis reversed. */
sc->flags ^= UMS_REVZ;
}
/*
* We might have both a wheel and Z direction; in this case,
* report the Z direction on the W axis.
*/
if (hid_locate(desc, size,
HID_USAGE2(HUP_GENERIC_DESKTOP, HUG_Z),
uha->reportid, hid_input, &sc->sc_loc_w, &flags)) {
if ((flags & MOUSE_FLAGS_MASK) != MOUSE_FLAGS) {
DPRINTF(("\n%s: Z report 0x%04x not supported\n",
sc->sc_hdev.sc_dev.dv_xname, flags));
/* Bad Z coord, ignore it */
sc->sc_loc_w.size = 0;
}
}
} else if (hid_locate(desc, size,
HID_USAGE2(HUP_GENERIC_DESKTOP, HUG_Z),
uha->reportid, hid_input, &sc->sc_loc_z, &flags)) {
if ((flags & MOUSE_FLAGS_MASK) != MOUSE_FLAGS) {
DPRINTF(("\n%s: Z report 0x%04x not supported\n",
sc->sc_hdev.sc_dev.dv_xname, flags));
sc->sc_loc_z.size = 0; /* Bad Z coord, ignore it */
} else {
sc->flags |= UMS_Z;
}
}
/* figure out the number of buttons */
for (i = 1; i <= MAX_BUTTONS; i++)
if (!hid_locate(desc, size, HID_USAGE2(HUP_BUTTON, i),
uha->reportid, hid_input, &loc_btn, 0))
break;
sc->nbuttons = i - 1;
printf(": %d button%s%s\n",
sc->nbuttons, sc->nbuttons == 1 ? "" : "s",
sc->flags & UMS_Z ? " and Z dir." : "");
for (i = 1; i <= sc->nbuttons; i++)
hid_locate(desc, size, HID_USAGE2(HUP_BUTTON, i),
uha->reportid, hid_input,
&sc->sc_loc_btn[i-1], 0);
#ifdef USB_DEBUG
DPRINTF(("ums_attach: sc=%p\n", sc));
DPRINTF(("ums_attach: X\t%d/%d\n",
sc->sc_loc_x.pos, sc->sc_loc_x.size));
DPRINTF(("ums_attach: Y\t%d/%d\n",
sc->sc_loc_y.pos, sc->sc_loc_y.size));
if (sc->flags & UMS_Z)
DPRINTF(("ums_attach: Z\t%d/%d\n",
sc->sc_loc_z.pos, sc->sc_loc_z.size));
for (i = 1; i <= sc->nbuttons; i++) {
DPRINTF(("ums_attach: B%d\t%d/%d\n",
i, sc->sc_loc_btn[i-1].pos,sc->sc_loc_btn[i-1].size));
}
#endif
a.accessops = &ums_accessops;
a.accesscookie = sc;
sc->sc_wsmousedev = config_found(self, &a, wsmousedevprint);
}
int
ums_activate(struct device *self, enum devact act)
{
struct ums_softc *sc = (struct ums_softc *)self;
int rv = 0;
switch (act) {
case DVACT_ACTIVATE:
break;
case DVACT_DEACTIVATE:
if (sc->sc_wsmousedev != NULL)
rv = config_deactivate(sc->sc_wsmousedev);
sc->sc_dying = 1;
break;
}
return (rv);
}
int
ums_detach(struct device *self, int flags)
{
struct ums_softc *sc = (struct ums_softc *)self;
int rv = 0;
DPRINTF(("ums_detach: sc=%p flags=%d\n", sc, flags));
/* No need to do reference counting of ums, wsmouse has all the goo. */
if (sc->sc_wsmousedev != NULL)
rv = config_detach(sc->sc_wsmousedev, flags);
return (rv);
}
void
ums_intr(struct uhidev *addr, void *ibuf, u_int len)
{
struct ums_softc *sc = (struct ums_softc *)addr;
int dx, dy, dz, dw;
u_int32_t buttons = 0;
int i;
int s;
DPRINTFN(5,("ums_intr: len=%d\n", len));
dx = hid_get_data(ibuf, &sc->sc_loc_x);
dy = -hid_get_data(ibuf, &sc->sc_loc_y);
dz = hid_get_data(ibuf, &sc->sc_loc_z);
dw = hid_get_data(ibuf, &sc->sc_loc_w);
if (sc->flags & UMS_REVZ)
dz = -dz;
for (i = 0; i < sc->nbuttons; i++)
if (hid_get_data(ibuf, &sc->sc_loc_btn[i]))
buttons |= (1 << UMS_BUT(i));
if (dx != 0 || dy != 0 || dz != 0 || dw != 0 ||
buttons != sc->sc_buttons) {
DPRINTFN(10, ("ums_intr: x:%d y:%d z:%d w:%d buttons:0x%x\n",
dx, dy, dz, dw, buttons));
sc->sc_buttons = buttons;
if (sc->sc_wsmousedev != NULL) {
s = spltty();
wsmouse_input(sc->sc_wsmousedev, buttons,
dx, dy, dz, dw, WSMOUSE_INPUT_DELTA);
splx(s);
}
}
}
int
ums_enable(void *v)
{
struct ums_softc *sc = v;
DPRINTFN(1,("ums_enable: sc=%p\n", sc));
if (sc->sc_dying)
return (EIO);
if (sc->sc_enabled)
return (EBUSY);
sc->sc_enabled = 1;
sc->sc_buttons = 0;
return (uhidev_open(&sc->sc_hdev));
}
void
ums_disable(void *v)
{
struct ums_softc *sc = v;
DPRINTFN(1,("ums_disable: sc=%p\n", sc));
#ifdef DIAGNOSTIC
if (!sc->sc_enabled) {
printf("ums_disable: not enabled\n");
return;
}
#endif
sc->sc_enabled = 0;
uhidev_close(&sc->sc_hdev);
}
int
ums_ioctl(void *v, u_long cmd, caddr_t data, int flag, struct proc *p)
{
switch (cmd) {
case WSMOUSEIO_GTYPE:
*(u_int *)data = WSMOUSE_TYPE_USB;
return (0);
}
return (-1);
}