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freebsd/sys/dev/usb/input/ums.c
Hans Petter Selasky ece4b0bd43 Make a bunch of USB debug SYSCTLs tunable, so that their value(s) can 
be set before the USB device(s) are probed.
2015-01-05 15:04:17 +00:00

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/*-
* 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.
*
* 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.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
/*
* HID spec: http://www.usb.org/developers/devclass_docs/HID1_11.pdf
*/
#include <sys/stdint.h>
#include <sys/stddef.h>
#include <sys/param.h>
#include <sys/queue.h>
#include <sys/types.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/bus.h>
#include <sys/module.h>
#include <sys/lock.h>
#include <sys/mutex.h>
#include <sys/condvar.h>
#include <sys/sysctl.h>
#include <sys/sx.h>
#include <sys/unistd.h>
#include <sys/callout.h>
#include <sys/malloc.h>
#include <sys/priv.h>
#include <sys/conf.h>
#include <sys/fcntl.h>
#include <sys/sbuf.h>
#include <dev/usb/usb.h>
#include <dev/usb/usbdi.h>
#include <dev/usb/usbdi_util.h>
#include <dev/usb/usbhid.h>
#include "usbdevs.h"
#define USB_DEBUG_VAR ums_debug
#include <dev/usb/usb_debug.h>
#include <dev/usb/quirk/usb_quirk.h>
#include <sys/ioccom.h>
#include <sys/filio.h>
#include <sys/tty.h>
#include <sys/mouse.h>
#ifdef USB_DEBUG
static int ums_debug = 0;
static SYSCTL_NODE(_hw_usb, OID_AUTO, ums, CTLFLAG_RW, 0, "USB ums");
SYSCTL_INT(_hw_usb_ums, OID_AUTO, debug, CTLFLAG_RWTUN,
&ums_debug, 0, "Debug level");
#endif
#define MOUSE_FLAGS_MASK (HIO_CONST|HIO_RELATIVE)
#define MOUSE_FLAGS (HIO_RELATIVE)
#define UMS_BUF_SIZE 8 /* bytes */
#define UMS_IFQ_MAXLEN 50 /* units */
#define UMS_BUTTON_MAX 31 /* exclusive, must be less than 32 */
#define UMS_BUT(i) ((i) < 3 ? (((i) + 2) % 3) : (i))
#define UMS_INFO_MAX 2 /* maximum number of HID sets */
enum {
UMS_INTR_DT,
UMS_N_TRANSFER,
};
struct ums_info {
struct hid_location sc_loc_w;
struct hid_location sc_loc_x;
struct hid_location sc_loc_y;
struct hid_location sc_loc_z;
struct hid_location sc_loc_t;
struct hid_location sc_loc_btn[UMS_BUTTON_MAX];
uint32_t sc_flags;
#define UMS_FLAG_X_AXIS 0x0001
#define UMS_FLAG_Y_AXIS 0x0002
#define UMS_FLAG_Z_AXIS 0x0004
#define UMS_FLAG_T_AXIS 0x0008
#define UMS_FLAG_SBU 0x0010 /* spurious button up events */
#define UMS_FLAG_REVZ 0x0020 /* Z-axis is reversed */
#define UMS_FLAG_W_AXIS 0x0040
uint8_t sc_iid_w;
uint8_t sc_iid_x;
uint8_t sc_iid_y;
uint8_t sc_iid_z;
uint8_t sc_iid_t;
uint8_t sc_iid_btn[UMS_BUTTON_MAX];
uint8_t sc_buttons;
};
struct ums_softc {
struct usb_fifo_sc sc_fifo;
struct mtx sc_mtx;
struct usb_callout sc_callout;
struct ums_info sc_info[UMS_INFO_MAX];
mousehw_t sc_hw;
mousemode_t sc_mode;
mousestatus_t sc_status;
struct usb_xfer *sc_xfer[UMS_N_TRANSFER];
int sc_pollrate;
int sc_fflags;
uint8_t sc_buttons;
uint8_t sc_iid;
uint8_t sc_temp[64];
};
static void ums_put_queue_timeout(void *__sc);
static usb_callback_t ums_intr_callback;
static device_probe_t ums_probe;
static device_attach_t ums_attach;
static device_detach_t ums_detach;
static usb_fifo_cmd_t ums_start_read;
static usb_fifo_cmd_t ums_stop_read;
static usb_fifo_open_t ums_open;
static usb_fifo_close_t ums_close;
static usb_fifo_ioctl_t ums_ioctl;
static void ums_put_queue(struct ums_softc *, int32_t, int32_t,
int32_t, int32_t, int32_t);
static int ums_sysctl_handler_parseinfo(SYSCTL_HANDLER_ARGS);
static struct usb_fifo_methods ums_fifo_methods = {
.f_open = &ums_open,
.f_close = &ums_close,
.f_ioctl = &ums_ioctl,
.f_start_read = &ums_start_read,
.f_stop_read = &ums_stop_read,
.basename[0] = "ums",
};
static void
ums_put_queue_timeout(void *__sc)
{
struct ums_softc *sc = __sc;
mtx_assert(&sc->sc_mtx, MA_OWNED);
ums_put_queue(sc, 0, 0, 0, 0, 0);
}
static void
ums_intr_callback(struct usb_xfer *xfer, usb_error_t error)
{
struct ums_softc *sc = usbd_xfer_softc(xfer);
struct ums_info *info = &sc->sc_info[0];
struct usb_page_cache *pc;
uint8_t *buf = sc->sc_temp;
int32_t buttons = 0;
int32_t buttons_found = 0;
int32_t dw = 0;
int32_t dx = 0;
int32_t dy = 0;
int32_t dz = 0;
int32_t dt = 0;
uint8_t i;
uint8_t id;
int len;
usbd_xfer_status(xfer, &len, NULL, NULL, NULL);
switch (USB_GET_STATE(xfer)) {
case USB_ST_TRANSFERRED:
DPRINTFN(6, "sc=%p actlen=%d\n", sc, len);
if (len > (int)sizeof(sc->sc_temp)) {
DPRINTFN(6, "truncating large packet to %zu bytes\n",
sizeof(sc->sc_temp));
len = sizeof(sc->sc_temp);
}
if (len == 0)
goto tr_setup;
pc = usbd_xfer_get_frame(xfer, 0);
usbd_copy_out(pc, 0, buf, len);
DPRINTFN(6, "data = %02x %02x %02x %02x "
"%02x %02x %02x %02x\n",
(len > 0) ? buf[0] : 0, (len > 1) ? buf[1] : 0,
(len > 2) ? buf[2] : 0, (len > 3) ? buf[3] : 0,
(len > 4) ? buf[4] : 0, (len > 5) ? buf[5] : 0,
(len > 6) ? buf[6] : 0, (len > 7) ? buf[7] : 0);
if (sc->sc_iid) {
id = *buf;
len--;
buf++;
} else {
id = 0;
if (sc->sc_info[0].sc_flags & UMS_FLAG_SBU) {
if ((*buf == 0x14) || (*buf == 0x15)) {
goto tr_setup;
}
}
}
repeat:
if ((info->sc_flags & UMS_FLAG_W_AXIS) &&
(id == info->sc_iid_w))
dw += hid_get_data(buf, len, &info->sc_loc_w);
if ((info->sc_flags & UMS_FLAG_X_AXIS) &&
(id == info->sc_iid_x))
dx += hid_get_data(buf, len, &info->sc_loc_x);
if ((info->sc_flags & UMS_FLAG_Y_AXIS) &&
(id == info->sc_iid_y))
dy = -hid_get_data(buf, len, &info->sc_loc_y);
if ((info->sc_flags & UMS_FLAG_Z_AXIS) &&
(id == info->sc_iid_z)) {
int32_t temp;
temp = hid_get_data(buf, len, &info->sc_loc_z);
if (info->sc_flags & UMS_FLAG_REVZ)
temp = -temp;
dz -= temp;
}
if ((info->sc_flags & UMS_FLAG_T_AXIS) &&
(id == info->sc_iid_t))
dt -= hid_get_data(buf, len, &info->sc_loc_t);
for (i = 0; i < info->sc_buttons; i++) {
uint32_t mask;
mask = 1UL << UMS_BUT(i);
/* check for correct button ID */
if (id != info->sc_iid_btn[i])
continue;
/* check for button pressed */
if (hid_get_data(buf, len, &info->sc_loc_btn[i]))
buttons |= mask;
/* register button mask */
buttons_found |= mask;
}
if (++info != &sc->sc_info[UMS_INFO_MAX])
goto repeat;
/* keep old button value(s) for non-detected buttons */
buttons |= sc->sc_status.button & ~buttons_found;
if (dx || dy || dz || dt || dw ||
(buttons != sc->sc_status.button)) {
DPRINTFN(6, "x:%d y:%d z:%d t:%d w:%d buttons:0x%08x\n",
dx, dy, dz, dt, dw, buttons);
/* translate T-axis into button presses until further */
if (dt > 0)
buttons |= 1UL << 3;
else if (dt < 0)
buttons |= 1UL << 4;
sc->sc_status.button = buttons;
sc->sc_status.dx += dx;
sc->sc_status.dy += dy;
sc->sc_status.dz += dz;
/*
* sc->sc_status.dt += dt;
* no way to export this yet
*/
/*
* The Qtronix keyboard has a built in PS/2
* port for a mouse. The firmware once in a
* while posts a spurious button up
* event. This event we ignore by doing a
* timeout for 50 msecs. If we receive
* dx=dy=dz=buttons=0 before we add the event
* to the queue. In any other case we delete
* the timeout event.
*/
if ((sc->sc_info[0].sc_flags & UMS_FLAG_SBU) &&
(dx == 0) && (dy == 0) && (dz == 0) && (dt == 0) &&
(dw == 0) && (buttons == 0)) {
usb_callout_reset(&sc->sc_callout, hz / 20,
&ums_put_queue_timeout, sc);
} else {
usb_callout_stop(&sc->sc_callout);
ums_put_queue(sc, dx, dy, dz, dt, buttons);
}
}
case USB_ST_SETUP:
tr_setup:
/* check if we can put more data into the FIFO */
if (usb_fifo_put_bytes_max(
sc->sc_fifo.fp[USB_FIFO_RX]) != 0) {
usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer));
usbd_transfer_submit(xfer);
}
break;
default: /* Error */
if (error != USB_ERR_CANCELLED) {
/* try clear stall first */
usbd_xfer_set_stall(xfer);
goto tr_setup;
}
break;
}
}
static const struct usb_config ums_config[UMS_N_TRANSFER] = {
[UMS_INTR_DT] = {
.type = UE_INTERRUPT,
.endpoint = UE_ADDR_ANY,
.direction = UE_DIR_IN,
.flags = {.pipe_bof = 1,.short_xfer_ok = 1,},
.bufsize = 0, /* use wMaxPacketSize */
.callback = &ums_intr_callback,
},
};
/* A match on these entries will load ums */
static const STRUCT_USB_HOST_ID __used ums_devs[] = {
{USB_IFACE_CLASS(UICLASS_HID),
USB_IFACE_SUBCLASS(UISUBCLASS_BOOT),
USB_IFACE_PROTOCOL(UIPROTO_MOUSE),},
};
static int
ums_probe(device_t dev)
{
struct usb_attach_arg *uaa = device_get_ivars(dev);
void *d_ptr;
int error;
uint16_t d_len;
DPRINTFN(11, "\n");
if (uaa->usb_mode != USB_MODE_HOST)
return (ENXIO);
if (uaa->info.bInterfaceClass != UICLASS_HID)
return (ENXIO);
if (usb_test_quirk(uaa, UQ_UMS_IGNORE))
return (ENXIO);
if ((uaa->info.bInterfaceSubClass == UISUBCLASS_BOOT) &&
(uaa->info.bInterfaceProtocol == UIPROTO_MOUSE))
return (BUS_PROBE_DEFAULT);
error = usbd_req_get_hid_desc(uaa->device, NULL,
&d_ptr, &d_len, M_TEMP, uaa->info.bIfaceIndex);
if (error)
return (ENXIO);
if (hid_is_mouse(d_ptr, d_len))
error = BUS_PROBE_DEFAULT;
else
error = ENXIO;
free(d_ptr, M_TEMP);
return (error);
}
static void
ums_hid_parse(struct ums_softc *sc, device_t dev, const uint8_t *buf,
uint16_t len, uint8_t index)
{
struct ums_info *info = &sc->sc_info[index];
uint32_t flags;
uint8_t i;
uint8_t j;
if (hid_locate(buf, len, HID_USAGE2(HUP_GENERIC_DESKTOP, HUG_X),
hid_input, index, &info->sc_loc_x, &flags, &info->sc_iid_x)) {
if ((flags & MOUSE_FLAGS_MASK) == MOUSE_FLAGS) {
info->sc_flags |= UMS_FLAG_X_AXIS;
}
}
if (hid_locate(buf, len, HID_USAGE2(HUP_GENERIC_DESKTOP, HUG_Y),
hid_input, index, &info->sc_loc_y, &flags, &info->sc_iid_y)) {
if ((flags & MOUSE_FLAGS_MASK) == MOUSE_FLAGS) {
info->sc_flags |= UMS_FLAG_Y_AXIS;
}
}
/* Try the wheel first as the Z activator since it's tradition. */
if (hid_locate(buf, len, HID_USAGE2(HUP_GENERIC_DESKTOP,
HUG_WHEEL), hid_input, index, &info->sc_loc_z, &flags,
&info->sc_iid_z) ||
hid_locate(buf, len, HID_USAGE2(HUP_GENERIC_DESKTOP,
HUG_TWHEEL), hid_input, index, &info->sc_loc_z, &flags,
&info->sc_iid_z)) {
if ((flags & MOUSE_FLAGS_MASK) == MOUSE_FLAGS) {
info->sc_flags |= UMS_FLAG_Z_AXIS;
}
/*
* We might have both a wheel and Z direction, if so put
* put the Z on the W coordinate.
*/
if (hid_locate(buf, len, HID_USAGE2(HUP_GENERIC_DESKTOP,
HUG_Z), hid_input, index, &info->sc_loc_w, &flags,
&info->sc_iid_w)) {
if ((flags & MOUSE_FLAGS_MASK) == MOUSE_FLAGS) {
info->sc_flags |= UMS_FLAG_W_AXIS;
}
}
} else if (hid_locate(buf, len, HID_USAGE2(HUP_GENERIC_DESKTOP,
HUG_Z), hid_input, index, &info->sc_loc_z, &flags,
&info->sc_iid_z)) {
if ((flags & MOUSE_FLAGS_MASK) == MOUSE_FLAGS) {
info->sc_flags |= UMS_FLAG_Z_AXIS;
}
}
/*
* The Microsoft Wireless Intellimouse 2.0 reports it's wheel
* using 0x0048, which is HUG_TWHEEL, and seems to expect you
* to know that the byte after the wheel is the tilt axis.
* There are no other HID axis descriptors other than X,Y and
* TWHEEL
*/
if (hid_locate(buf, len, HID_USAGE2(HUP_GENERIC_DESKTOP,
HUG_TWHEEL), hid_input, index, &info->sc_loc_t,
&flags, &info->sc_iid_t)) {
info->sc_loc_t.pos += 8;
if ((flags & MOUSE_FLAGS_MASK) == MOUSE_FLAGS) {
info->sc_flags |= UMS_FLAG_T_AXIS;
}
} else if (hid_locate(buf, len, HID_USAGE2(HUP_CONSUMER,
HUC_AC_PAN), hid_input, index, &info->sc_loc_t,
&flags, &info->sc_iid_t)) {
if ((flags & MOUSE_FLAGS_MASK) == MOUSE_FLAGS)
info->sc_flags |= UMS_FLAG_T_AXIS;
}
/* figure out the number of buttons */
for (i = 0; i < UMS_BUTTON_MAX; i++) {
if (!hid_locate(buf, len, HID_USAGE2(HUP_BUTTON, (i + 1)),
hid_input, index, &info->sc_loc_btn[i], NULL,
&info->sc_iid_btn[i])) {
break;
}
}
/* detect other buttons */
for (j = 0; (i < UMS_BUTTON_MAX) && (j < 2); i++, j++) {
if (!hid_locate(buf, len, HID_USAGE2(HUP_MICROSOFT, (j + 1)),
hid_input, index, &info->sc_loc_btn[i], NULL,
&info->sc_iid_btn[i])) {
break;
}
}
info->sc_buttons = i;
if (i > sc->sc_buttons)
sc->sc_buttons = i;
if (info->sc_flags == 0)
return;
/* announce information about the mouse */
device_printf(dev, "%d buttons and [%s%s%s%s%s] coordinates ID=%u\n",
(info->sc_buttons),
(info->sc_flags & UMS_FLAG_X_AXIS) ? "X" : "",
(info->sc_flags & UMS_FLAG_Y_AXIS) ? "Y" : "",
(info->sc_flags & UMS_FLAG_Z_AXIS) ? "Z" : "",
(info->sc_flags & UMS_FLAG_T_AXIS) ? "T" : "",
(info->sc_flags & UMS_FLAG_W_AXIS) ? "W" : "",
info->sc_iid_x);
}
static int
ums_attach(device_t dev)
{
struct usb_attach_arg *uaa = device_get_ivars(dev);
struct ums_softc *sc = device_get_softc(dev);
struct ums_info *info;
void *d_ptr = NULL;
int isize;
int err;
uint16_t d_len;
uint8_t i;
#ifdef USB_DEBUG
uint8_t j;
#endif
DPRINTFN(11, "sc=%p\n", sc);
device_set_usb_desc(dev);
mtx_init(&sc->sc_mtx, "ums lock", NULL, MTX_DEF | MTX_RECURSE);
usb_callout_init_mtx(&sc->sc_callout, &sc->sc_mtx, 0);
/*
* Force the report (non-boot) protocol.
*
* Mice without boot protocol support may choose not to implement
* Set_Protocol at all; Ignore any error.
*/
err = usbd_req_set_protocol(uaa->device, NULL,
uaa->info.bIfaceIndex, 1);
err = usbd_transfer_setup(uaa->device,
&uaa->info.bIfaceIndex, sc->sc_xfer, ums_config,
UMS_N_TRANSFER, sc, &sc->sc_mtx);
if (err) {
DPRINTF("error=%s\n", usbd_errstr(err));
goto detach;
}
/* Get HID descriptor */
err = usbd_req_get_hid_desc(uaa->device, NULL, &d_ptr,
&d_len, M_TEMP, uaa->info.bIfaceIndex);
if (err) {
device_printf(dev, "error reading report description\n");
goto detach;
}
isize = hid_report_size(d_ptr, d_len, hid_input, &sc->sc_iid);
/*
* The Microsoft Wireless Notebook Optical Mouse seems to be in worse
* shape than the Wireless Intellimouse 2.0, as its X, Y, wheel, and
* all of its other button positions are all off. It also reports that
* it has two addional buttons and a tilt wheel.
*/
if (usb_test_quirk(uaa, UQ_MS_BAD_CLASS)) {
sc->sc_iid = 0;
info = &sc->sc_info[0];
info->sc_flags = (UMS_FLAG_X_AXIS |
UMS_FLAG_Y_AXIS |
UMS_FLAG_Z_AXIS |
UMS_FLAG_SBU);
info->sc_buttons = 3;
isize = 5;
/* 1st byte of descriptor report contains garbage */
info->sc_loc_x.pos = 16;
info->sc_loc_x.size = 8;
info->sc_loc_y.pos = 24;
info->sc_loc_y.size = 8;
info->sc_loc_z.pos = 32;
info->sc_loc_z.size = 8;
info->sc_loc_btn[0].pos = 8;
info->sc_loc_btn[0].size = 1;
info->sc_loc_btn[1].pos = 9;
info->sc_loc_btn[1].size = 1;
info->sc_loc_btn[2].pos = 10;
info->sc_loc_btn[2].size = 1;
/* Announce device */
device_printf(dev, "3 buttons and [XYZ] "
"coordinates ID=0\n");
} else {
/* Search the HID descriptor and announce device */
for (i = 0; i < UMS_INFO_MAX; i++) {
ums_hid_parse(sc, dev, d_ptr, d_len, i);
}
}
if (usb_test_quirk(uaa, UQ_MS_REVZ)) {
info = &sc->sc_info[0];
/* Some wheels need the Z axis reversed. */
info->sc_flags |= UMS_FLAG_REVZ;
}
if (isize > (int)usbd_xfer_max_framelen(sc->sc_xfer[UMS_INTR_DT])) {
DPRINTF("WARNING: report size, %d bytes, is larger "
"than interrupt size, %d bytes!\n", isize,
usbd_xfer_max_framelen(sc->sc_xfer[UMS_INTR_DT]));
}
free(d_ptr, M_TEMP);
d_ptr = NULL;
#ifdef USB_DEBUG
for (j = 0; j < UMS_INFO_MAX; j++) {
info = &sc->sc_info[j];
DPRINTF("sc=%p, index=%d\n", sc, j);
DPRINTF("X\t%d/%d id=%d\n", info->sc_loc_x.pos,
info->sc_loc_x.size, info->sc_iid_x);
DPRINTF("Y\t%d/%d id=%d\n", info->sc_loc_y.pos,
info->sc_loc_y.size, info->sc_iid_y);
DPRINTF("Z\t%d/%d id=%d\n", info->sc_loc_z.pos,
info->sc_loc_z.size, info->sc_iid_z);
DPRINTF("T\t%d/%d id=%d\n", info->sc_loc_t.pos,
info->sc_loc_t.size, info->sc_iid_t);
DPRINTF("W\t%d/%d id=%d\n", info->sc_loc_w.pos,
info->sc_loc_w.size, info->sc_iid_w);
for (i = 0; i < info->sc_buttons; i++) {
DPRINTF("B%d\t%d/%d id=%d\n",
i + 1, info->sc_loc_btn[i].pos,
info->sc_loc_btn[i].size, info->sc_iid_btn[i]);
}
}
DPRINTF("size=%d, id=%d\n", isize, sc->sc_iid);
#endif
err = usb_fifo_attach(uaa->device, sc, &sc->sc_mtx,
&ums_fifo_methods, &sc->sc_fifo,
device_get_unit(dev), -1, uaa->info.bIfaceIndex,
UID_ROOT, GID_OPERATOR, 0644);
if (err)
goto detach;
SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev),
SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
OID_AUTO, "parseinfo", CTLTYPE_STRING|CTLFLAG_RD,
sc, 0, ums_sysctl_handler_parseinfo,
"", "Dump of parsed HID report descriptor");
return (0);
detach:
if (d_ptr) {
free(d_ptr, M_TEMP);
}
ums_detach(dev);
return (ENOMEM);
}
static int
ums_detach(device_t self)
{
struct ums_softc *sc = device_get_softc(self);
DPRINTF("sc=%p\n", sc);
usb_fifo_detach(&sc->sc_fifo);
usbd_transfer_unsetup(sc->sc_xfer, UMS_N_TRANSFER);
usb_callout_drain(&sc->sc_callout);
mtx_destroy(&sc->sc_mtx);
return (0);
}
static void
ums_start_read(struct usb_fifo *fifo)
{
struct ums_softc *sc = usb_fifo_softc(fifo);
int rate;
/* Check if we should override the default polling interval */
rate = sc->sc_pollrate;
/* Range check rate */
if (rate > 1000)
rate = 1000;
/* Check for set rate */
if ((rate > 0) && (sc->sc_xfer[UMS_INTR_DT] != NULL)) {
DPRINTF("Setting pollrate = %d\n", rate);
/* Stop current transfer, if any */
usbd_transfer_stop(sc->sc_xfer[UMS_INTR_DT]);
/* Set new interval */
usbd_xfer_set_interval(sc->sc_xfer[UMS_INTR_DT], 1000 / rate);
/* Only set pollrate once */
sc->sc_pollrate = 0;
}
usbd_transfer_start(sc->sc_xfer[UMS_INTR_DT]);
}
static void
ums_stop_read(struct usb_fifo *fifo)
{
struct ums_softc *sc = usb_fifo_softc(fifo);
usbd_transfer_stop(sc->sc_xfer[UMS_INTR_DT]);
usb_callout_stop(&sc->sc_callout);
}
#if ((MOUSE_SYS_PACKETSIZE != 8) || \
(MOUSE_MSC_PACKETSIZE != 5))
#error "Software assumptions are not met. Please update code."
#endif
static void
ums_put_queue(struct ums_softc *sc, int32_t dx, int32_t dy,
int32_t dz, int32_t dt, int32_t buttons)
{
uint8_t buf[8];
if (1) {
if (dx > 254)
dx = 254;
if (dx < -256)
dx = -256;
if (dy > 254)
dy = 254;
if (dy < -256)
dy = -256;
if (dz > 126)
dz = 126;
if (dz < -128)
dz = -128;
if (dt > 126)
dt = 126;
if (dt < -128)
dt = -128;
buf[0] = sc->sc_mode.syncmask[1];
buf[0] |= (~buttons) & MOUSE_MSC_BUTTONS;
buf[1] = dx >> 1;
buf[2] = dy >> 1;
buf[3] = dx - (dx >> 1);
buf[4] = dy - (dy >> 1);
if (sc->sc_mode.level == 1) {
buf[5] = dz >> 1;
buf[6] = dz - (dz >> 1);
buf[7] = (((~buttons) >> 3) & MOUSE_SYS_EXTBUTTONS);
}
usb_fifo_put_data_linear(sc->sc_fifo.fp[USB_FIFO_RX], buf,
sc->sc_mode.packetsize, 1);
} else {
DPRINTF("Buffer full, discarded packet\n");
}
}
static void
ums_reset_buf(struct ums_softc *sc)
{
/* reset read queue, must be called locked */
usb_fifo_reset(sc->sc_fifo.fp[USB_FIFO_RX]);
}
static int
ums_open(struct usb_fifo *fifo, int fflags)
{
struct ums_softc *sc = usb_fifo_softc(fifo);
DPRINTFN(2, "\n");
/* check for duplicate open, should not happen */
if (sc->sc_fflags & fflags)
return (EBUSY);
/* check for first open */
if (sc->sc_fflags == 0) {
/* reset all USB mouse parameters */
if (sc->sc_buttons > MOUSE_MSC_MAXBUTTON)
sc->sc_hw.buttons = MOUSE_MSC_MAXBUTTON;
else
sc->sc_hw.buttons = sc->sc_buttons;
sc->sc_hw.iftype = MOUSE_IF_USB;
sc->sc_hw.type = MOUSE_MOUSE;
sc->sc_hw.model = MOUSE_MODEL_GENERIC;
sc->sc_hw.hwid = 0;
sc->sc_mode.protocol = MOUSE_PROTO_MSC;
sc->sc_mode.rate = -1;
sc->sc_mode.resolution = MOUSE_RES_UNKNOWN;
sc->sc_mode.accelfactor = 0;
sc->sc_mode.level = 0;
sc->sc_mode.packetsize = MOUSE_MSC_PACKETSIZE;
sc->sc_mode.syncmask[0] = MOUSE_MSC_SYNCMASK;
sc->sc_mode.syncmask[1] = MOUSE_MSC_SYNC;
/* reset status */
sc->sc_status.flags = 0;
sc->sc_status.button = 0;
sc->sc_status.obutton = 0;
sc->sc_status.dx = 0;
sc->sc_status.dy = 0;
sc->sc_status.dz = 0;
/* sc->sc_status.dt = 0; */
}
if (fflags & FREAD) {
/* allocate RX buffer */
if (usb_fifo_alloc_buffer(fifo,
UMS_BUF_SIZE, UMS_IFQ_MAXLEN)) {
return (ENOMEM);
}
}
sc->sc_fflags |= fflags & (FREAD | FWRITE);
return (0);
}
static void
ums_close(struct usb_fifo *fifo, int fflags)
{
struct ums_softc *sc = usb_fifo_softc(fifo);
DPRINTFN(2, "\n");
if (fflags & FREAD)
usb_fifo_free_buffer(fifo);
sc->sc_fflags &= ~(fflags & (FREAD | FWRITE));
}
static int
ums_ioctl(struct usb_fifo *fifo, u_long cmd, void *addr, int fflags)
{
struct ums_softc *sc = usb_fifo_softc(fifo);
mousemode_t mode;
int error = 0;
DPRINTFN(2, "\n");
mtx_lock(&sc->sc_mtx);
switch (cmd) {
case MOUSE_GETHWINFO:
*(mousehw_t *)addr = sc->sc_hw;
break;
case MOUSE_GETMODE:
*(mousemode_t *)addr = sc->sc_mode;
break;
case MOUSE_SETMODE:
mode = *(mousemode_t *)addr;
if (mode.level == -1) {
/* don't change the current setting */
} else if ((mode.level < 0) || (mode.level > 1)) {
error = EINVAL;
break;
} else {
sc->sc_mode.level = mode.level;
}
/* store polling rate */
sc->sc_pollrate = mode.rate;
if (sc->sc_mode.level == 0) {
if (sc->sc_buttons > MOUSE_MSC_MAXBUTTON)
sc->sc_hw.buttons = MOUSE_MSC_MAXBUTTON;
else
sc->sc_hw.buttons = sc->sc_buttons;
sc->sc_mode.protocol = MOUSE_PROTO_MSC;
sc->sc_mode.packetsize = MOUSE_MSC_PACKETSIZE;
sc->sc_mode.syncmask[0] = MOUSE_MSC_SYNCMASK;
sc->sc_mode.syncmask[1] = MOUSE_MSC_SYNC;
} else if (sc->sc_mode.level == 1) {
if (sc->sc_buttons > MOUSE_SYS_MAXBUTTON)
sc->sc_hw.buttons = MOUSE_SYS_MAXBUTTON;
else
sc->sc_hw.buttons = sc->sc_buttons;
sc->sc_mode.protocol = MOUSE_PROTO_SYSMOUSE;
sc->sc_mode.packetsize = MOUSE_SYS_PACKETSIZE;
sc->sc_mode.syncmask[0] = MOUSE_SYS_SYNCMASK;
sc->sc_mode.syncmask[1] = MOUSE_SYS_SYNC;
}
ums_reset_buf(sc);
break;
case MOUSE_GETLEVEL:
*(int *)addr = sc->sc_mode.level;
break;
case MOUSE_SETLEVEL:
if (*(int *)addr < 0 || *(int *)addr > 1) {
error = EINVAL;
break;
}
sc->sc_mode.level = *(int *)addr;
if (sc->sc_mode.level == 0) {
if (sc->sc_buttons > MOUSE_MSC_MAXBUTTON)
sc->sc_hw.buttons = MOUSE_MSC_MAXBUTTON;
else
sc->sc_hw.buttons = sc->sc_buttons;
sc->sc_mode.protocol = MOUSE_PROTO_MSC;
sc->sc_mode.packetsize = MOUSE_MSC_PACKETSIZE;
sc->sc_mode.syncmask[0] = MOUSE_MSC_SYNCMASK;
sc->sc_mode.syncmask[1] = MOUSE_MSC_SYNC;
} else if (sc->sc_mode.level == 1) {
if (sc->sc_buttons > MOUSE_SYS_MAXBUTTON)
sc->sc_hw.buttons = MOUSE_SYS_MAXBUTTON;
else
sc->sc_hw.buttons = sc->sc_buttons;
sc->sc_mode.protocol = MOUSE_PROTO_SYSMOUSE;
sc->sc_mode.packetsize = MOUSE_SYS_PACKETSIZE;
sc->sc_mode.syncmask[0] = MOUSE_SYS_SYNCMASK;
sc->sc_mode.syncmask[1] = MOUSE_SYS_SYNC;
}
ums_reset_buf(sc);
break;
case MOUSE_GETSTATUS:{
mousestatus_t *status = (mousestatus_t *)addr;
*status = sc->sc_status;
sc->sc_status.obutton = sc->sc_status.button;
sc->sc_status.button = 0;
sc->sc_status.dx = 0;
sc->sc_status.dy = 0;
sc->sc_status.dz = 0;
/* sc->sc_status.dt = 0; */
if (status->dx || status->dy || status->dz /* || status->dt */ ) {
status->flags |= MOUSE_POSCHANGED;
}
if (status->button != status->obutton) {
status->flags |= MOUSE_BUTTONSCHANGED;
}
break;
}
default:
error = ENOTTY;
break;
}
mtx_unlock(&sc->sc_mtx);
return (error);
}
static int
ums_sysctl_handler_parseinfo(SYSCTL_HANDLER_ARGS)
{
struct ums_softc *sc = arg1;
struct ums_info *info;
struct sbuf *sb;
int i, j, err, had_output;
sb = sbuf_new_auto();
for (i = 0, had_output = 0; i < UMS_INFO_MAX; i++) {
info = &sc->sc_info[i];
/* Don't emit empty info */
if ((info->sc_flags &
(UMS_FLAG_X_AXIS | UMS_FLAG_Y_AXIS | UMS_FLAG_Z_AXIS |
UMS_FLAG_T_AXIS | UMS_FLAG_W_AXIS)) == 0 &&
info->sc_buttons == 0)
continue;
if (had_output)
sbuf_printf(sb, "\n");
had_output = 1;
sbuf_printf(sb, "i%d:", i + 1);
if (info->sc_flags & UMS_FLAG_X_AXIS)
sbuf_printf(sb, " X:r%d, p%d, s%d;",
(int)info->sc_iid_x,
(int)info->sc_loc_x.pos,
(int)info->sc_loc_x.size);
if (info->sc_flags & UMS_FLAG_Y_AXIS)
sbuf_printf(sb, " Y:r%d, p%d, s%d;",
(int)info->sc_iid_y,
(int)info->sc_loc_y.pos,
(int)info->sc_loc_y.size);
if (info->sc_flags & UMS_FLAG_Z_AXIS)
sbuf_printf(sb, " Z:r%d, p%d, s%d;",
(int)info->sc_iid_z,
(int)info->sc_loc_z.pos,
(int)info->sc_loc_z.size);
if (info->sc_flags & UMS_FLAG_T_AXIS)
sbuf_printf(sb, " T:r%d, p%d, s%d;",
(int)info->sc_iid_t,
(int)info->sc_loc_t.pos,
(int)info->sc_loc_t.size);
if (info->sc_flags & UMS_FLAG_W_AXIS)
sbuf_printf(sb, " W:r%d, p%d, s%d;",
(int)info->sc_iid_w,
(int)info->sc_loc_w.pos,
(int)info->sc_loc_w.size);
for (j = 0; j < info->sc_buttons; j++) {
sbuf_printf(sb, " B%d:r%d, p%d, s%d;", j + 1,
(int)info->sc_iid_btn[j],
(int)info->sc_loc_btn[j].pos,
(int)info->sc_loc_btn[j].size);
}
}
sbuf_finish(sb);
err = SYSCTL_OUT(req, sbuf_data(sb), sbuf_len(sb) + 1);
sbuf_delete(sb);
return (err);
}
static devclass_t ums_devclass;
static device_method_t ums_methods[] = {
DEVMETHOD(device_probe, ums_probe),
DEVMETHOD(device_attach, ums_attach),
DEVMETHOD(device_detach, ums_detach),
DEVMETHOD_END
};
static driver_t ums_driver = {
.name = "ums",
.methods = ums_methods,
.size = sizeof(struct ums_softc),
};
DRIVER_MODULE(ums, uhub, ums_driver, ums_devclass, NULL, 0);
MODULE_DEPEND(ums, usb, 1, 1, 1);
MODULE_VERSION(ums, 1);
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