NetBSD/sys/dev/usb/ums.c

482 lines
12 KiB
C

/* $NetBSD: ums.c,v 1.41 2000/02/29 21:37:01 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 (augustss@carlstedt.se) 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/data/usbhid10.pdf
*/
/* XXX complete SPUR_UP change */
#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/select.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/hid.h>
#include <dev/wscons/wsconsio.h>
#include <dev/wscons/wsmousevar.h>
#ifdef USB_DEBUG
#define DPRINTF(x) if (umsdebug) logprintf x
#define DPRINTFN(n,x) if (umsdebug>(n)) logprintf x
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
struct ums_softc {
USBBASEDEVICE sc_dev; /* base device */
usbd_device_handle sc_udev;
usbd_interface_handle sc_iface; /* interface */
usbd_pipe_handle sc_intrpipe; /* interrupt pipe */
int sc_ep_addr;
u_char *sc_ibuf;
u_int8_t sc_iid;
int sc_isize;
struct hid_location sc_loc_x, sc_loc_y, sc_loc_z;
struct hid_location *sc_loc_btn;
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;
#define MAX_BUTTONS 31 /* chosen because sc_buttons is u_int32_t */
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)
static void ums_intr __P((usbd_xfer_handle, usbd_private_handle,
usbd_status));
static int ums_enable __P((void *));
static void ums_disable __P((void *));
static int ums_ioctl __P((void *, u_long, caddr_t, int, struct proc *));
const struct wsmouse_accessops ums_accessops = {
ums_enable,
ums_ioctl,
ums_disable,
};
USB_DECLARE_DRIVER(ums);
USB_MATCH(ums)
{
USB_MATCH_START(ums, uaa);
usb_interface_descriptor_t *id;
int size, ret;
void *desc;
usbd_status err;
if (uaa->iface == NULL)
return (UMATCH_NONE);
id = usbd_get_interface_descriptor(uaa->iface);
if (id == NULL || id->bInterfaceClass != UICLASS_HID)
return (UMATCH_NONE);
err = usbd_alloc_report_desc(uaa->iface, &desc, &size, M_TEMP);
if (err)
return (UMATCH_NONE);
if (hid_is_collection(desc, size,
HID_USAGE2(HUP_GENERIC_DESKTOP, HUG_MOUSE)))
ret = UMATCH_IFACECLASS;
else
ret = UMATCH_NONE;
free(desc, M_TEMP);
return (ret);
}
USB_ATTACH(ums)
{
USB_ATTACH_START(ums, sc, uaa);
usbd_interface_handle iface = uaa->iface;
usb_interface_descriptor_t *id;
usb_endpoint_descriptor_t *ed;
struct wsmousedev_attach_args a;
int size;
void *desc;
usbd_status err;
char devinfo[1024];
u_int32_t flags, quirks;
int i, wheel;
struct hid_location loc_btn;
sc->sc_udev = uaa->device;
sc->sc_iface = iface;
id = usbd_get_interface_descriptor(iface);
usbd_devinfo(uaa->device, 0, devinfo);
USB_ATTACH_SETUP;
printf("%s: %s, iclass %d/%d\n", USBDEVNAME(sc->sc_dev),
devinfo, id->bInterfaceClass, id->bInterfaceSubClass);
ed = usbd_interface2endpoint_descriptor(iface, 0);
if (ed == NULL) {
printf("%s: could not read endpoint descriptor\n",
USBDEVNAME(sc->sc_dev));
USB_ATTACH_ERROR_RETURN;
}
DPRINTFN(10,("ums_attach: bLength=%d bDescriptorType=%d "
"bEndpointAddress=%d-%s bmAttributes=%d wMaxPacketSize=%d"
" bInterval=%d\n",
ed->bLength, ed->bDescriptorType,
ed->bEndpointAddress & UE_ADDR,
UE_GET_DIR(ed->bEndpointAddress)==UE_DIR_IN? "in" : "out",
ed->bmAttributes & UE_XFERTYPE,
UGETW(ed->wMaxPacketSize), ed->bInterval));
if (UE_GET_DIR(ed->bEndpointAddress) != UE_DIR_IN ||
(ed->bmAttributes & UE_XFERTYPE) != UE_INTERRUPT) {
printf("%s: unexpected endpoint\n",
USBDEVNAME(sc->sc_dev));
USB_ATTACH_ERROR_RETURN;
}
quirks = usbd_get_quirks(uaa->device)->uq_flags;
if (quirks & UQ_MS_REVZ)
sc->flags |= UMS_REVZ;
if (quirks & UQ_SPUR_BUT_UP)
sc->flags |= UMS_SPUR_BUT_UP;
err = usbd_alloc_report_desc(uaa->iface, &desc, &size, M_TEMP);
if (err)
USB_ATTACH_ERROR_RETURN;
if (!hid_locate(desc, size, HID_USAGE2(HUP_GENERIC_DESKTOP, HUG_X),
hid_input, &sc->sc_loc_x, &flags)) {
printf("%s: mouse has no X report\n", USBDEVNAME(sc->sc_dev));
USB_ATTACH_ERROR_RETURN;
}
if ((flags & MOUSE_FLAGS_MASK) != MOUSE_FLAGS) {
printf("%s: X report 0x%04x not supported\n",
USBDEVNAME(sc->sc_dev), flags);
USB_ATTACH_ERROR_RETURN;
}
if (!hid_locate(desc, size, HID_USAGE2(HUP_GENERIC_DESKTOP, HUG_Y),
hid_input, &sc->sc_loc_y, &flags)) {
printf("%s: mouse has no Y report\n", USBDEVNAME(sc->sc_dev));
USB_ATTACH_ERROR_RETURN;
}
if ((flags & MOUSE_FLAGS_MASK) != MOUSE_FLAGS) {
printf("%s: Y report 0x%04x not supported\n",
USBDEVNAME(sc->sc_dev), flags);
USB_ATTACH_ERROR_RETURN;
}
/* Try to guess the Z activator: first check Z, then WHEEL. */
wheel = 0;
if (hid_locate(desc, size, HID_USAGE2(HUP_GENERIC_DESKTOP, HUG_Z),
hid_input, &sc->sc_loc_z, &flags) ||
(wheel = hid_locate(desc, size, HID_USAGE2(HUP_GENERIC_DESKTOP,
HUG_WHEEL),
hid_input, &sc->sc_loc_z, &flags))) {
if ((flags & MOUSE_FLAGS_MASK) != MOUSE_FLAGS) {
sc->sc_loc_z.size = 0; /* Bad Z coord, ignore it */
} else {
sc->flags |= UMS_Z;
/* Wheels need the Z axis reversed. */
if (wheel)
sc->flags ^= UMS_REVZ;
}
}
/* figure out the number of buttons */
for (i = 1; i <= MAX_BUTTONS; i++)
if (!hid_locate(desc, size, HID_USAGE2(HUP_BUTTON, i),
hid_input, &loc_btn, 0))
break;
sc->nbuttons = i - 1;
sc->sc_loc_btn = malloc(sizeof(struct hid_location)*sc->nbuttons,
M_USBDEV, M_NOWAIT);
if (!sc->sc_loc_btn) {
printf("%s: no memory\n", USBDEVNAME(sc->sc_dev));
USB_ATTACH_ERROR_RETURN;
}
printf("%s: %d buttons%s\n", USBDEVNAME(sc->sc_dev),
sc->nbuttons, sc->flags & UMS_Z ? " and Z dir." : "");
for (i = 1; i <= sc->nbuttons; i++)
hid_locate(desc, size, HID_USAGE2(HUP_BUTTON, i),
hid_input, &sc->sc_loc_btn[i-1], 0);
sc->sc_isize = hid_report_size(desc, size, hid_input, &sc->sc_iid);
sc->sc_ibuf = malloc(sc->sc_isize, M_USBDEV, M_NOWAIT);
if (sc->sc_ibuf == NULL) {
printf("%s: no memory\n", USBDEVNAME(sc->sc_dev));
free(sc->sc_loc_btn, M_USBDEV);
USB_ATTACH_ERROR_RETURN;
}
sc->sc_ep_addr = ed->bEndpointAddress;
free(desc, M_TEMP);
#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_x.pos, sc->sc_loc_x.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));
}
DPRINTF(("ums_attach: size=%d, id=%d\n", sc->sc_isize, sc->sc_iid));
#endif
a.accessops = &ums_accessops;
a.accesscookie = sc;
sc->sc_wsmousedev = config_found(self, &a, wsmousedevprint);
usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->sc_udev,
USBDEV(sc->sc_dev));
USB_ATTACH_SUCCESS_RETURN;
}
int
ums_activate(self, act)
device_ptr_t self;
enum devact act;
{
struct ums_softc *sc = (struct ums_softc *)self;
int rv = 0;
switch (act) {
case DVACT_ACTIVATE:
return (EOPNOTSUPP);
break;
case DVACT_DEACTIVATE:
if (sc->sc_wsmousedev != NULL)
rv = config_deactivate(sc->sc_wsmousedev);
sc->sc_dying = 1;
break;
}
return (rv);
}
USB_DETACH(ums)
{
USB_DETACH_START(ums, sc);
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);
if (rv == 0) {
free(sc->sc_loc_btn, M_USBDEV);
free(sc->sc_ibuf, M_USBDEV);
}
usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->sc_udev,
USBDEV(sc->sc_dev));
return (rv);
}
void
ums_intr(xfer, addr, status)
usbd_xfer_handle xfer;
usbd_private_handle addr;
usbd_status status;
{
struct ums_softc *sc = addr;
u_char *ibuf;
int dx, dy, dz;
u_int32_t buttons = 0;
int i;
int s;
DPRINTFN(5, ("ums_intr: sc=%p status=%d\n", sc, status));
DPRINTFN(5, ("ums_intr: data = %02x %02x %02x\n",
sc->sc_ibuf[0], sc->sc_ibuf[1], sc->sc_ibuf[2]));
if (status == USBD_CANCELLED)
return;
if (status) {
DPRINTF(("ums_intr: status=%d\n", status));
usbd_clear_endpoint_stall_async(sc->sc_intrpipe);
return;
}
ibuf = sc->sc_ibuf;
if (sc->sc_iid != 0) {
if (*ibuf++ != sc->sc_iid)
return;
}
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);
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 || buttons != sc->sc_buttons) {
DPRINTFN(10, ("ums_intr: x:%d y:%d z:%d buttons:0x%x\n",
dx, dy, dz, buttons));
sc->sc_buttons = buttons;
if (sc->sc_wsmousedev != NULL) {
s = spltty();
wsmouse_input(sc->sc_wsmousedev, buttons, dx, dy, dz,
WSMOUSE_INPUT_DELTA);
splx(s);
}
}
}
static int
ums_enable(v)
void *v;
{
struct ums_softc *sc = v;
usbd_status err;
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;
/* Set up interrupt pipe. */
err = usbd_open_pipe_intr(sc->sc_iface, sc->sc_ep_addr,
USBD_SHORT_XFER_OK, &sc->sc_intrpipe, sc,
sc->sc_ibuf, sc->sc_isize, ums_intr, USBD_DEFAULT_INTERVAL);
if (err) {
DPRINTF(("ums_enable: usbd_open_pipe_intr failed, error=%d\n",
err));
sc->sc_enabled = 0;
return (EIO);
}
return (0);
}
static void
ums_disable(v)
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
/* Disable interrupts. */
usbd_abort_pipe(sc->sc_intrpipe);
usbd_close_pipe(sc->sc_intrpipe);
sc->sc_enabled = 0;
}
static int
ums_ioctl(v, cmd, data, flag, p)
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);
}