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|
/* $OpenBSD: uhidev.c,v 1.71 2015/12/08 09:49:22 mpi Exp $ */
/* $NetBSD: uhidev.c,v 1.14 2003/03/11 16:44:00 augustss Exp $ */
/*
* Copyright (c) 2001 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.
*/
/*
* 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/signalvar.h>
#include <sys/device.h>
#include <sys/ioctl.h>
#include <sys/conf.h>
#include <machine/bus.h>
#include <dev/usb/usb.h>
#include <dev/usb/usbhid.h>
#include <dev/usb/usbdevs.h>
#include <dev/usb/usbdi.h>
#include <dev/usb/usbdi_util.h>
#include <dev/usb/usbdivar.h>
#include <dev/usb/usb_mem.h>
#include <dev/usb/hid.h>
#include <dev/usb/usb_quirks.h>
#include <dev/usb/uhidev.h>
#ifndef SMALL_KERNEL
/* Replacement report descriptors for devices shipped with broken ones */
#include <dev/usb/uhid_rdesc.h>
int uhidev_use_rdesc(struct uhidev_softc *, usb_interface_descriptor_t *,
int, int, void **, int *);
#define UISUBCLASS_XBOX360_CONTROLLER 0x5d
#define UIPROTO_XBOX360_GAMEPAD 0x01
#endif /* !SMALL_KERNEL */
#define DEVNAME(sc) ((sc)->sc_dev.dv_xname)
#ifdef UHIDEV_DEBUG
#define DPRINTF(x) do { if (uhidevdebug) printf x; } while (0)
#define DPRINTFN(n,x) do { if (uhidevdebug>(n)) printf x; } while (0)
int uhidevdebug = 0;
#else
#define DPRINTF(x)
#define DPRINTFN(n,x)
#endif
struct uhidev_async_info {
void (*callback)(void *priv, int id, void *data, int len);
void *priv;
void *data;
int id;
};
void uhidev_intr(struct usbd_xfer *, void *, usbd_status);
int uhidev_maxrepid(void *buf, int len);
int uhidevprint(void *aux, const char *pnp);
int uhidevsubmatch(struct device *parent, void *cf, void *aux);
int uhidev_match(struct device *, void *, void *);
void uhidev_attach(struct device *, struct device *, void *);
int uhidev_detach(struct device *, int);
int uhidev_activate(struct device *, int);
void uhidev_get_report_async_cb(struct usbd_xfer *xfer, void *priv,
usbd_status status);
struct cfdriver uhidev_cd = {
NULL, "uhidev", DV_DULL
};
const struct cfattach uhidev_ca = {
sizeof(struct uhidev_softc), uhidev_match, uhidev_attach,
uhidev_detach, uhidev_activate,
};
int
uhidev_match(struct device *parent, void *match, void *aux)
{
struct usb_attach_arg *uaa = aux;
usb_interface_descriptor_t *id;
if (uaa->iface == NULL)
return (UMATCH_NONE);
id = usbd_get_interface_descriptor(uaa->iface);
if (id == NULL)
return (UMATCH_NONE);
#ifndef SMALL_KERNEL
if (id->bInterfaceClass == UICLASS_VENDOR &&
id->bInterfaceSubClass == UISUBCLASS_XBOX360_CONTROLLER &&
id->bInterfaceProtocol == UIPROTO_XBOX360_GAMEPAD)
return (UMATCH_IFACECLASS_IFACESUBCLASS_IFACEPROTO);
#endif /* !SMALL_KERNEL */
if (id->bInterfaceClass != UICLASS_HID)
return (UMATCH_NONE);
if (usbd_get_quirks(uaa->device)->uq_flags & UQ_BAD_HID)
return (UMATCH_NONE);
return (UMATCH_IFACECLASS_GENERIC);
}
void
uhidev_attach(struct device *parent, struct device *self, void *aux)
{
struct uhidev_softc *sc = (struct uhidev_softc *)self;
struct usb_attach_arg *uaa = aux;
usb_interface_descriptor_t *id;
usb_endpoint_descriptor_t *ed;
struct uhidev_attach_arg uha;
int size, nrepid, repid, repsz;
int i, repsizes[256];
void *desc = NULL;
struct device *dev;
sc->sc_udev = uaa->device;
sc->sc_iface = uaa->iface;
sc->sc_ifaceno = uaa->ifaceno;
id = usbd_get_interface_descriptor(sc->sc_iface);
usbd_set_idle(sc->sc_udev, sc->sc_ifaceno, 0, 0);
sc->sc_iep_addr = sc->sc_oep_addr = -1;
for (i = 0; i < id->bNumEndpoints; i++) {
ed = usbd_interface2endpoint_descriptor(sc->sc_iface, i);
if (ed == NULL) {
printf("%s: could not read endpoint descriptor\n",
DEVNAME(sc));
return;
}
DPRINTFN(10,("uhidev_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) {
sc->sc_iep_addr = ed->bEndpointAddress;
} else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT &&
(ed->bmAttributes & UE_XFERTYPE) == UE_INTERRUPT) {
sc->sc_oep_addr = ed->bEndpointAddress;
} else {
printf("%s: unexpected endpoint\n", DEVNAME(sc));
return;
}
}
/*
* Check that we found an input interrupt endpoint.
* The output interrupt endpoint is optional
*/
if (sc->sc_iep_addr == -1) {
printf("%s: no input interrupt endpoint\n", DEVNAME(sc));
return;
}
#ifndef SMALL_KERNEL
if (uhidev_use_rdesc(sc, id, uaa->vendor, uaa->product, &desc, &size))
return;
#endif /* !SMALL_KERNEL */
if (desc == NULL) {
struct usb_hid_descriptor *hid;
hid = usbd_get_hid_descriptor(sc->sc_udev, id);
if (hid == NULL) {
printf("%s: no HID descriptor\n", DEVNAME(sc));
return;
}
size = UGETW(hid->descrs[0].wDescriptorLength);
desc = malloc(size, M_USBDEV, M_NOWAIT);
if (desc == NULL) {
printf("%s: no memory\n", DEVNAME(sc));
return;
}
if (usbd_get_report_descriptor(sc->sc_udev, sc->sc_ifaceno,
desc, size)) {
printf("%s: no report descriptor\n", DEVNAME(sc));
free(desc, M_USBDEV, 0);
return;
}
}
sc->sc_repdesc = desc;
sc->sc_repdesc_size = size;
nrepid = uhidev_maxrepid(desc, size);
if (nrepid < 0)
return;
printf("%s: iclass %d/%d", DEVNAME(sc), id->bInterfaceClass,
id->bInterfaceSubClass);
if (nrepid > 0)
printf(", %d report id%s", nrepid, nrepid > 1 ? "s" : "");
printf("\n");
nrepid++;
sc->sc_subdevs = mallocarray(nrepid, sizeof(struct uhidev *),
M_USBDEV, M_NOWAIT | M_ZERO);
if (sc->sc_subdevs == NULL) {
printf("%s: no memory\n", DEVNAME(sc));
return;
}
sc->sc_nrepid = nrepid;
sc->sc_isize = 0;
for (repid = 0; repid < nrepid; repid++) {
repsz = hid_report_size(desc, size, hid_input, repid);
DPRINTF(("uhidev_match: repid=%d, repsz=%d\n", repid, repsz));
repsizes[repid] = repsz;
if (repsz > sc->sc_isize)
sc->sc_isize = repsz;
}
sc->sc_isize += (nrepid != 1); /* one byte for the report ID */
DPRINTF(("uhidev_attach: isize=%d\n", sc->sc_isize));
uha.uaa = uaa;
uha.parent = sc;
uha.reportid = UHIDEV_CLAIM_ALLREPORTID;
/* Look for a driver claiming all report IDs first. */
dev = config_found_sm(self, &uha, NULL, uhidevsubmatch);
if (dev != NULL) {
for (repid = 0; repid < nrepid; repid++)
sc->sc_subdevs[repid] = (struct uhidev *)dev;
return;
}
for (repid = 0; repid < nrepid; repid++) {
DPRINTF(("%s: try repid=%d\n", __func__, repid));
if (hid_report_size(desc, size, hid_input, repid) == 0 &&
hid_report_size(desc, size, hid_output, repid) == 0 &&
hid_report_size(desc, size, hid_feature, repid) == 0)
continue;
uha.reportid = repid;
dev = config_found_sm(self, &uha, uhidevprint, uhidevsubmatch);
sc->sc_subdevs[repid] = (struct uhidev *)dev;
}
}
#ifndef SMALL_KERNEL
int
uhidev_use_rdesc(struct uhidev_softc *sc, usb_interface_descriptor_t *id,
int vendor, int product, void **descp, int *sizep)
{
static uByte reportbuf[] = {2, 2};
const void *descptr = NULL;
void *desc;
int size;
if (vendor == USB_VENDOR_WACOM) {
/* The report descriptor for the Wacom Graphire is broken. */
switch (product) {
case USB_PRODUCT_WACOM_GRAPHIRE:
size = sizeof(uhid_graphire_report_descr);
descptr = uhid_graphire_report_descr;
break;
case USB_PRODUCT_WACOM_GRAPHIRE3_4X5:
case USB_PRODUCT_WACOM_GRAPHIRE4_4X5:
uhidev_set_report(sc, UHID_FEATURE_REPORT,
2, &reportbuf, sizeof(reportbuf));
size = sizeof(uhid_graphire3_4x5_report_descr);
descptr = uhid_graphire3_4x5_report_descr;
break;
default:
break;
}
} else if ((id->bInterfaceClass == UICLASS_VENDOR &&
id->bInterfaceSubClass == UISUBCLASS_XBOX360_CONTROLLER &&
id->bInterfaceProtocol == UIPROTO_XBOX360_GAMEPAD)) {
/* The Xbox 360 gamepad has no report descriptor. */
size = sizeof(uhid_xb360gp_report_descr);
descptr = uhid_xb360gp_report_descr;
}
if (descptr) {
desc = malloc(size, M_USBDEV, M_NOWAIT);
if (desc == NULL)
return (ENOMEM);
memcpy(desc, descptr, size);
*descp = desc;
*sizep = size;
}
return (0);
}
#endif /* !SMALL_KERNEL */
int
uhidev_maxrepid(void *buf, int len)
{
struct hid_data *d;
struct hid_item h;
int maxid;
maxid = -1;
h.report_ID = 0;
for (d = hid_start_parse(buf, len, hid_none); hid_get_item(d, &h); )
if (h.report_ID > maxid)
maxid = h.report_ID;
hid_end_parse(d);
return (maxid);
}
int
uhidevprint(void *aux, const char *pnp)
{
struct uhidev_attach_arg *uha = aux;
if (pnp)
printf("uhid at %s", pnp);
if (uha->reportid != 0 && uha->reportid != UHIDEV_CLAIM_ALLREPORTID)
printf(" reportid %d", uha->reportid);
return (UNCONF);
}
int uhidevsubmatch(struct device *parent, void *match, void *aux)
{
struct uhidev_attach_arg *uha = aux;
struct cfdata *cf = match;
if (cf->uhidevcf_reportid != UHIDEV_UNK_REPORTID &&
cf->uhidevcf_reportid != uha->reportid)
return (0);
return ((*cf->cf_attach->ca_match)(parent, cf, aux));
}
int
uhidev_activate(struct device *self, int act)
{
struct uhidev_softc *sc = (struct uhidev_softc *)self;
int i, rv = 0, r;
switch (act) {
case DVACT_DEACTIVATE:
for (i = 0; i < sc->sc_nrepid; i++)
if (sc->sc_subdevs[i] != NULL) {
r = config_deactivate(
&sc->sc_subdevs[i]->sc_dev);
if (r && r != EOPNOTSUPP)
rv = r;
}
usbd_deactivate(sc->sc_udev);
break;
}
return (rv);
}
int
uhidev_detach(struct device *self, int flags)
{
struct uhidev_softc *sc = (struct uhidev_softc *)self;
int i, rv = 0;
DPRINTF(("uhidev_detach: sc=%p flags=%d\n", sc, flags));
if (sc->sc_opipe != NULL) {
usbd_abort_pipe(sc->sc_opipe);
usbd_close_pipe(sc->sc_opipe);
sc->sc_opipe = NULL;
}
if (sc->sc_ipipe != NULL) {
usbd_abort_pipe(sc->sc_ipipe);
usbd_close_pipe(sc->sc_ipipe);
sc->sc_ipipe = NULL;
}
if (sc->sc_repdesc != NULL)
free(sc->sc_repdesc, M_USBDEV, 0);
/*
* XXX Check if we have only one children claiming all the Report
* IDs, this is a hack since we need a dev -> Report ID mapping
* for uhidev_intr().
*/
if (sc->sc_nrepid > 1 && sc->sc_subdevs[0] != NULL &&
sc->sc_subdevs[0] == sc->sc_subdevs[1])
return (config_detach(&sc->sc_subdevs[0]->sc_dev, flags));
for (i = 0; i < sc->sc_nrepid; i++) {
if (sc->sc_subdevs[i] != NULL) {
rv |= config_detach(&sc->sc_subdevs[i]->sc_dev, flags);
sc->sc_subdevs[i] = NULL;
}
}
return (rv);
}
void
uhidev_intr(struct usbd_xfer *xfer, void *addr, usbd_status status)
{
struct uhidev_softc *sc = addr;
struct uhidev *scd;
u_char *p;
u_int rep;
u_int32_t cc;
if (usbd_is_dying(sc->sc_udev))
return;
usbd_get_xfer_status(xfer, NULL, NULL, &cc, NULL);
#ifdef UHIDEV_DEBUG
if (uhidevdebug > 5) {
u_int32_t i;
DPRINTF(("uhidev_intr: status=%d cc=%d\n", status, cc));
DPRINTF(("uhidev_intr: data ="));
for (i = 0; i < cc; i++)
DPRINTF((" %02x", sc->sc_ibuf[i]));
DPRINTF(("\n"));
}
#endif
if (status == USBD_CANCELLED || status == USBD_IOERROR)
return;
if (status != USBD_NORMAL_COMPLETION) {
DPRINTF(("%s: interrupt status=%d\n", DEVNAME(sc), status));
usbd_clear_endpoint_stall_async(sc->sc_ipipe);
return;
}
p = sc->sc_ibuf;
if (sc->sc_nrepid != 1)
rep = *p++, cc--;
else
rep = 0;
if (rep >= sc->sc_nrepid) {
printf("uhidev_intr: bad repid %d\n", rep);
return;
}
scd = sc->sc_subdevs[rep];
DPRINTFN(5,("uhidev_intr: rep=%d, scd=%p state=0x%x\n",
rep, scd, scd ? scd->sc_state : 0));
if (scd == NULL || !(scd->sc_state & UHIDEV_OPEN))
return;
scd->sc_intr(scd, p, cc);
}
void
uhidev_get_report_desc(struct uhidev_softc *sc, void **desc, int *size)
{
*desc = sc->sc_repdesc;
*size = sc->sc_repdesc_size;
}
int
uhidev_open(struct uhidev *scd)
{
struct uhidev_softc *sc = scd->sc_parent;
usbd_status err;
int error;
DPRINTF(("uhidev_open: open pipe, state=%d refcnt=%d\n",
scd->sc_state, sc->sc_refcnt));
if (scd->sc_state & UHIDEV_OPEN)
return (EBUSY);
scd->sc_state |= UHIDEV_OPEN;
if (sc->sc_refcnt++)
return (0);
if (sc->sc_isize == 0)
return (0);
sc->sc_ibuf = malloc(sc->sc_isize, M_USBDEV, M_WAITOK);
/* Set up input interrupt pipe. */
DPRINTF(("uhidev_open: isize=%d, ep=0x%02x\n", sc->sc_isize,
sc->sc_iep_addr));
err = usbd_open_pipe_intr(sc->sc_iface, sc->sc_iep_addr,
USBD_SHORT_XFER_OK, &sc->sc_ipipe, sc, sc->sc_ibuf,
sc->sc_isize, uhidev_intr, USBD_DEFAULT_INTERVAL);
if (err != USBD_NORMAL_COMPLETION) {
DPRINTF(("uhidopen: usbd_open_pipe_intr failed, "
"error=%d\n", err));
error = EIO;
goto out1;
}
DPRINTF(("uhidev_open: sc->sc_ipipe=%p\n", sc->sc_ipipe));
sc->sc_ixfer = usbd_alloc_xfer(sc->sc_udev);
if (sc->sc_ixfer == NULL) {
DPRINTF(("uhidev_open: couldn't allocate an xfer\n"));
error = ENOMEM;
goto out1; // xxxx
}
/*
* Set up output interrupt pipe if an output interrupt endpoint
* exists.
*/
if (sc->sc_oep_addr != -1) {
DPRINTF(("uhidev_open: oep=0x%02x\n", sc->sc_oep_addr));
err = usbd_open_pipe(sc->sc_iface, sc->sc_oep_addr,
0, &sc->sc_opipe);
if (err != USBD_NORMAL_COMPLETION) {
DPRINTF(("uhidev_open: usbd_open_pipe failed, "
"error=%d\n", err));
error = EIO;
goto out2;
}
DPRINTF(("uhidev_open: sc->sc_opipe=%p\n", sc->sc_opipe));
sc->sc_oxfer = usbd_alloc_xfer(sc->sc_udev);
if (sc->sc_oxfer == NULL) {
DPRINTF(("uhidev_open: couldn't allocate an xfer\n"));
error = ENOMEM;
goto out3;
}
sc->sc_owxfer = usbd_alloc_xfer(sc->sc_udev);
if (sc->sc_owxfer == NULL) {
DPRINTF(("uhidev_open: couldn't allocate owxfer\n"));
error = ENOMEM;
goto out3;
}
}
return (0);
out3:
/* Abort output pipe */
usbd_close_pipe(sc->sc_opipe);
out2:
/* Abort input pipe */
usbd_close_pipe(sc->sc_ipipe);
out1:
DPRINTF(("uhidev_open: failed in someway"));
free(sc->sc_ibuf, M_USBDEV, 0);
scd->sc_state &= ~UHIDEV_OPEN;
sc->sc_refcnt = 0;
sc->sc_ipipe = NULL;
sc->sc_opipe = NULL;
if (sc->sc_oxfer != NULL) {
usbd_free_xfer(sc->sc_oxfer);
sc->sc_oxfer = NULL;
}
if (sc->sc_owxfer != NULL) {
usbd_free_xfer(sc->sc_owxfer);
sc->sc_owxfer = NULL;
}
if (sc->sc_ixfer != NULL) {
usbd_free_xfer(sc->sc_ixfer);
sc->sc_ixfer = NULL;
}
return (error);
}
void
uhidev_close(struct uhidev *scd)
{
struct uhidev_softc *sc = scd->sc_parent;
if (!(scd->sc_state & UHIDEV_OPEN))
return;
scd->sc_state &= ~UHIDEV_OPEN;
if (--sc->sc_refcnt)
return;
DPRINTF(("uhidev_close: close pipe\n"));
if (sc->sc_oxfer != NULL) {
usbd_free_xfer(sc->sc_oxfer);
sc->sc_oxfer = NULL;
}
if (sc->sc_owxfer != NULL) {
usbd_free_xfer(sc->sc_owxfer);
sc->sc_owxfer = NULL;
}
if (sc->sc_ixfer != NULL) {
usbd_free_xfer(sc->sc_ixfer);
sc->sc_ixfer = NULL;
}
/* Disable interrupts. */
if (sc->sc_opipe != NULL) {
usbd_abort_pipe(sc->sc_opipe);
usbd_close_pipe(sc->sc_opipe);
sc->sc_opipe = NULL;
}
if (sc->sc_ipipe != NULL) {
usbd_abort_pipe(sc->sc_ipipe);
usbd_close_pipe(sc->sc_ipipe);
sc->sc_ipipe = NULL;
}
if (sc->sc_ibuf != NULL) {
free(sc->sc_ibuf, M_USBDEV, 0);
sc->sc_ibuf = NULL;
}
}
int
uhidev_set_report(struct uhidev_softc *sc, int type, int id, void *data,
int len)
{
usb_device_request_t req;
char *buf = data;
int actlen = len;
/* Prepend the reportID. */
if (id > 0) {
len++;
buf = malloc(len, M_TEMP, M_WAITOK);
buf[0] = id;
memcpy(buf + 1, data, len - 1);
}
req.bmRequestType = UT_WRITE_CLASS_INTERFACE;
req.bRequest = UR_SET_REPORT;
USETW2(req.wValue, type, id);
USETW(req.wIndex, sc->sc_ifaceno);
USETW(req.wLength, len);
if (usbd_do_request(sc->sc_udev, &req, buf))
actlen = -1;
if (id > 0)
free(buf, M_TEMP, len);
return (actlen);
}
int
uhidev_set_report_async(struct uhidev_softc *sc, int type, int id, void *data,
int len)
{
struct usbd_xfer *xfer;
usb_device_request_t req;
int actlen = len;
char *buf;
xfer = usbd_alloc_xfer(sc->sc_udev);
if (xfer == NULL)
return (-1);
if (id > 0)
len++;
buf = usbd_alloc_buffer(xfer, len);
if (buf == NULL) {
usbd_free_xfer(xfer);
return (-1);
}
/* Prepend the reportID. */
if (id > 0) {
buf[0] = id;
memcpy(buf + 1, data, len - 1);
} else {
memcpy(buf, data, len);
}
req.bmRequestType = UT_WRITE_CLASS_INTERFACE;
req.bRequest = UR_SET_REPORT;
USETW2(req.wValue, type, id);
USETW(req.wIndex, sc->sc_ifaceno);
USETW(req.wLength, len);
if (usbd_request_async(xfer, &req, NULL, NULL))
actlen = -1;
return (actlen);
}
int
uhidev_get_report(struct uhidev_softc *sc, int type, int id, void *data,
int len)
{
usb_device_request_t req;
char *buf = data;
usbd_status err;
int actlen;
if (id > 0) {
len++;
buf = malloc(len, M_TEMP, M_WAITOK|M_ZERO);
}
req.bmRequestType = UT_READ_CLASS_INTERFACE;
req.bRequest = UR_GET_REPORT;
USETW2(req.wValue, type, id);
USETW(req.wIndex, sc->sc_ifaceno);
USETW(req.wLength, len);
err = usbd_do_request_flags(sc->sc_udev, &req, buf, 0, &actlen,
USBD_DEFAULT_TIMEOUT);
if (err != USBD_NORMAL_COMPLETION && err != USBD_SHORT_XFER)
actlen = -1;
/* Skip the reportID. */
if (id > 0) {
memcpy(data, buf + 1, len - 1);
free(buf, M_TEMP, len);
}
return (actlen);
}
void
uhidev_get_report_async_cb(struct usbd_xfer *xfer, void *priv, usbd_status err)
{
struct uhidev_async_info *info = priv;
char *buf;
int len = -1;
if (err == USBD_NORMAL_COMPLETION || err == USBD_SHORT_XFER) {
len = xfer->actlen;
buf = KERNADDR(&xfer->dmabuf, 0);
if (info->id > 0) {
len--;
memcpy(info->data, buf + 1, len);
} else {
memcpy(info->data, buf, len);
}
}
info->callback(info->priv, info->id, info->data, len);
free(info, M_TEMP, sizeof(*info));
usbd_free_xfer(xfer);
}
int
uhidev_get_report_async(struct uhidev_softc *sc, int type, int id, void *data,
int len, void *priv, void (*callback)(void *, int, void *, int))
{
struct usbd_xfer *xfer;
usb_device_request_t req;
struct uhidev_async_info *info;
int actlen = len;
char *buf;
xfer = usbd_alloc_xfer(sc->sc_udev);
if (xfer == NULL)
return (-1);
if (id > 0)
len++;
buf = usbd_alloc_buffer(xfer, len);
if (buf == NULL) {
usbd_free_xfer(xfer);
return (-1);
}
info = malloc(sizeof(*info), M_TEMP, M_NOWAIT);
if (info == NULL) {
usbd_free_xfer(xfer);
return (-1);
}
info->callback = callback;
info->priv = priv;
info->data = data;
info->id = id;
req.bmRequestType = UT_READ_CLASS_INTERFACE;
req.bRequest = UR_GET_REPORT;
USETW2(req.wValue, type, id);
USETW(req.wIndex, sc->sc_ifaceno);
USETW(req.wLength, len);
if (usbd_request_async(xfer, &req, info, uhidev_get_report_async_cb)) {
free(info, M_TEMP, sizeof(*info));
actlen = -1;
}
return (actlen);
}
usbd_status
uhidev_write(struct uhidev_softc *sc, void *data, int len)
{
usbd_status error;
DPRINTF(("uhidev_write: data=%p, len=%d\n", data, len));
if (sc->sc_opipe == NULL)
return USBD_INVAL;
#ifdef UHIDEV_DEBUG
if (uhidevdebug > 50) {
u_int32_t i;
u_int8_t *d = data;
DPRINTF(("uhidev_write: data ="));
for (i = 0; i < len; i++)
DPRINTF((" %02x", d[i]));
DPRINTF(("\n"));
}
#endif
usbd_setup_xfer(sc->sc_owxfer, sc->sc_opipe, 0, data, len,
USBD_SYNCHRONOUS | USBD_CATCH, 0, NULL);
error = usbd_transfer(sc->sc_owxfer);
if (error)
usbd_clear_endpoint_stall(sc->sc_opipe);
return (error);
}
int
uhidev_ioctl(struct uhidev *sc, u_long cmd, caddr_t addr, int flag,
struct proc *p)
{
struct usb_ctl_report_desc *rd;
struct usb_ctl_report *re;
int size;
void *desc;
switch (cmd) {
case USB_GET_REPORT_DESC:
uhidev_get_report_desc(sc->sc_parent, &desc, &size);
rd = (struct usb_ctl_report_desc *)addr;
size = min(size, sizeof rd->ucrd_data);
rd->ucrd_size = size;
memcpy(rd->ucrd_data, desc, size);
break;
case USB_GET_REPORT:
re = (struct usb_ctl_report *)addr;
switch (re->ucr_report) {
case UHID_INPUT_REPORT:
size = sc->sc_isize;
break;
case UHID_OUTPUT_REPORT:
size = sc->sc_osize;
break;
case UHID_FEATURE_REPORT:
size = sc->sc_fsize;
break;
default:
return EINVAL;
}
if (uhidev_get_report(sc->sc_parent, re->ucr_report,
sc->sc_report_id, re->ucr_data, size) != size)
return EIO;
break;
case USB_SET_REPORT:
re = (struct usb_ctl_report *)addr;
switch (re->ucr_report) {
case UHID_INPUT_REPORT:
size = sc->sc_isize;
break;
case UHID_OUTPUT_REPORT:
size = sc->sc_osize;
break;
case UHID_FEATURE_REPORT:
size = sc->sc_fsize;
break;
default:
return EINVAL;
}
if (uhidev_set_report(sc->sc_parent, re->ucr_report,
sc->sc_report_id, re->ucr_data, size) != size)
return EIO;
break;
case USB_GET_REPORT_ID:
*(int *)addr = sc->sc_report_id;
break;
default:
return -1;
}
return 0;
}
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