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NetBSD/sys/dev/usb/ugen.c

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/* $NetBSD: ugen.c,v 1.1 1998/12/08 15:39:00 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 (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.
*/
#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/device.h>
#include <sys/poll.h>
#include <dev/usb/usb.h>
#include <dev/usb/usbdi.h>
#include <dev/usb/usbdi_util.h>
#ifdef USB_DEBUG
#define DPRINTF(x) if (ugendebug) printf x
#define DPRINTFN(n,x) if (ugendebug>(n)) printf x
int ugendebug = 10;
#else
#define DPRINTF(x)
#define DPRINTFN(n,x)
#endif
struct ugen_endpoint {
struct ugen_softc *sc;
usb_endpoint_descriptor_t *edesc;
usbd_interface_handle iface;
int state;
#define UGEN_OPEN 0x01 /* device is open */
#define UGEN_ASLP 0x02 /* waiting for data */
usbd_pipe_handle pipeh;
struct clist q;
struct selinfo rsel;
void *ibuf;
};
#define UGEN_CHUNK 128 /* chunk size for read */
#define UGEN_IBSIZE 1020 /* buffer size */
#define UGEN_BBSIZE 1024
struct ugen_softc {
struct device sc_dev; /* base device */
struct usbd_device *sc_udev;
struct ugen_endpoint sc_endpoints[USB_MAX_ENDPOINTS][2];
#define OUT 0 /* index order is important, from UE_OUT */
#define IN 1 /* from UE_IN */
int sc_disconnected; /* device is gone */
};
int ugen_match __P((struct device *, struct cfdata *, void *));
void ugen_attach __P((struct device *, struct device *, void *));
int ugenopen __P((dev_t, int, int, struct proc *));
int ugenclose __P((dev_t, int, int, struct proc *p));
int ugenread __P((dev_t, struct uio *uio, int));
int ugenwrite __P((dev_t, struct uio *uio, int));
int ugenioctl __P((dev_t, u_long, caddr_t, int, struct proc *));
int ugenpoll __P((dev_t, int, struct proc *));
void ugenintr __P((usbd_request_handle reqh, usbd_private_handle addr, usbd_status status));
void ugen_disco __P((void *));
int ugen_set_config __P((struct ugen_softc *sc, int configno));
usb_config_descriptor_t *ugen_get_cdesc __P((struct ugen_softc *sc, int index, int *lenp));
usbd_status ugen_set_interface __P((struct ugen_softc *, int, int));
int ugen_get_alt_index __P((struct ugen_softc *sc, usb_config_descriptor_t *cdesc, int ifaceidx));
#define UGENUNIT(n) (((n) >> 4) & 0xf)
#define UGENENDPOINT(n) ((n) & 0xf)
extern struct cfdriver ugen_cd;
struct cfattach ugen_ca = {
sizeof(struct ugen_softc), ugen_match, ugen_attach
};
int
ugen_match(parent, match, aux)
struct device *parent;
struct cfdata *match;
void *aux;
{
struct usb_attach_arg *uaa = (struct usb_attach_arg *)aux;
if (uaa->usegeneric)
return (UMATCH_GENERIC);
else
return (UMATCH_NONE);
}
void
ugen_attach(parent, self, aux)
struct device *parent;
struct device *self;
void *aux;
{
struct ugen_softc *sc = (struct ugen_softc *)self;
struct usb_attach_arg *uaa = (struct usb_attach_arg *)aux;
char devinfo[1024];
usbd_status r;
usbd_devinfo(uaa->device, 0, devinfo);
printf(": %s\n", devinfo);
sc->sc_udev = uaa->device;
r = ugen_set_config(sc, 1);
if (r != USBD_NORMAL_COMPLETION) {
printf("%s: setting configuration 0 failed\n",
sc->sc_dev.dv_xname);
sc->sc_disconnected = 1;
return;
}
}
int
ugen_set_config(sc, configno)
struct ugen_softc *sc;
int configno;
{
usbd_device_handle dev = sc->sc_udev;
usbd_interface_handle iface;
usb_endpoint_descriptor_t *ed;
struct ugen_endpoint *sce;
u_int8_t niface, nendpt;
int ifaceno, endptno, endpt;
usbd_status r;
DPRINTFN(1,("ugen_set_config: %s to configno %d, sc=%p\n",
sc->sc_dev.dv_xname, configno, sc));
r = usbd_set_config_no(dev, configno, 0);
if (r != USBD_NORMAL_COMPLETION)
return (r);
r = usbd_interface_count(dev, &niface);
if (r != USBD_NORMAL_COMPLETION)
return (r);
memset(sc->sc_endpoints, 0, sizeof sc->sc_endpoints);
for (ifaceno = 0; ifaceno < niface; ifaceno++) {
DPRINTFN(1,("ugen_set_config: ifaceno %d\n", ifaceno));
r = usbd_device2interface_handle(dev, ifaceno, &iface);
if (r != USBD_NORMAL_COMPLETION)
return (r);
r = usbd_endpoint_count(iface, &nendpt);
if (r != USBD_NORMAL_COMPLETION)
return (r);
for (endptno = 0; endptno < nendpt; endptno++) {
ed = usbd_interface2endpoint_descriptor(iface,endptno);
endpt = ed->bEndpointAddress;
sce = &sc->sc_endpoints[UE_GET_ADDR(endpt)]
[UE_GET_IN(endpt)];
DPRINTFN(1,("ugen_set_config: endptno %d, endpt=0x%02x(%d,%d), sce=%p\n",
endptno, endpt, UE_GET_ADDR(endpt),
UE_GET_IN(endpt), sce));
sce->sc = sc;
sce->edesc = ed;
sce->iface = iface;
}
}
return (USBD_NORMAL_COMPLETION);
}
void
ugen_disco(p)
void *p;
{
struct ugen_softc *sc = p;
sc->sc_disconnected = 1;
}
int
ugenopen(dev, flag, mode, p)
dev_t dev;
int flag;
int mode;
struct proc *p;
{
int unit = UGENUNIT(dev);
int endpt = UGENENDPOINT(dev);
usb_endpoint_descriptor_t *edesc;
struct ugen_softc *sc;
struct ugen_endpoint *sce;
int dir, isize;
usbd_status r;
DPRINTFN(5, ("ugenopen: flag=%d, unit=%d endpt=%d\n",
flag, unit, endpt));
if (unit >= ugen_cd.cd_ndevs)
return (ENXIO);
sc = ugen_cd.cd_devs[unit];
if (!sc)
return (ENXIO);
if (sc->sc_disconnected)
return (EIO);
if (endpt == USB_CONTROL_ENDPOINT) {
/*if ((flag & (FWRITE|FREAD)) != (FWRITE|FREAD))
return (EACCES);*/
sce = &sc->sc_endpoints[USB_CONTROL_ENDPOINT][OUT];
if (sce->state & UGEN_OPEN)
return (EBUSY);
} else {
switch (flag & (FWRITE|FREAD)) {
case FWRITE:
dir = OUT;
break;
case FREAD:
dir = IN;
break;
default:
return (EACCES);
}
sce = &sc->sc_endpoints[endpt][dir];
DPRINTFN(5, ("ugenopen: sc=%p, endpt=%d, dir=%d, sce=%p\n", sc, endpt, dir, sce));
if (sce->state & UGEN_OPEN)
return (EBUSY);
edesc = sce->edesc;
if (!edesc)
return (ENXIO);
switch (edesc->bmAttributes & UE_XFERTYPE) {
case UE_INTERRUPT:
isize = UGETW(edesc->wMaxPacketSize);
if (isize == 0) /* shouldn't happen */
return (EINVAL);
sce->ibuf = malloc(isize, M_USB, M_NOWAIT);
DPRINTFN(5, ("ugenopen: intr endpt=%d,isize=%d\n",
endpt, isize));
if (clalloc(&sce->q, UGEN_IBSIZE, 0) == -1)
return (ENOMEM);
r = usbd_open_pipe_intr(sce->iface,
edesc->bEndpointAddress,
USBD_SHORT_XFER_OK, &sce->pipeh, sce,
sce->ibuf, isize, ugenintr);
if (r != USBD_NORMAL_COMPLETION) {
free(sce->ibuf, M_USB);
clfree(&sce->q);
return (EIO);
}
usbd_set_disco(sce->pipeh, ugen_disco, sc);
DPRINTFN(5, ("ugenopen: interrupt open done\n"));
break;
case UE_BULK:
r = usbd_open_pipe(sce->iface,
edesc->bEndpointAddress, 0,
&sce->pipeh);
if (r != USBD_NORMAL_COMPLETION)
return (EIO);
break;
case UE_CONTROL:
case UE_ISOCHRONOUS:
return (EINVAL);
}
}
sce->state |= UGEN_OPEN;
return (0);
}
int
ugenclose(dev, flag, mode, p)
dev_t dev;
int flag;
int mode;
struct proc *p;
{
struct ugen_softc *sc = ugen_cd.cd_devs[UGENUNIT(dev)];
int endpt = UGENENDPOINT(dev);
struct ugen_endpoint *sce;
int dir;
DPRINTFN(5, ("ugenclose\n"));
if (sc->sc_disconnected)
return (EIO);
if (endpt == USB_CONTROL_ENDPOINT) {
sc->sc_endpoints[endpt][OUT].state &= ~UGEN_OPEN;
return (0);
}
dir = flag & FWRITE ? OUT : IN;
sce = &sc->sc_endpoints[endpt][dir];
sce->state &= ~UGEN_OPEN;
usbd_abort_pipe(sce->pipeh);
usbd_close_pipe(sce->pipeh);
if (sce->ibuf) {
free(sce->ibuf, M_USB);
sce->ibuf = 0;
}
return (0);
}
int
ugenread(dev, uio, flag)
dev_t dev;
struct uio *uio;
int flag;
{
struct ugen_softc *sc = ugen_cd.cd_devs[UGENUNIT(dev)];
int endpt = UGENENDPOINT(dev);
struct ugen_endpoint *sce = &sc->sc_endpoints[endpt][IN];
size_t n;
char buf[UGEN_BBSIZE];
usbd_request_handle reqh;
usbd_status r;
int s;
int error = 0;
u_char buffer[UGEN_CHUNK];
DPRINTFN(5, ("ugenread: %d:%d\n", UGENUNIT(dev), UGENENDPOINT(dev)));
if (sc->sc_disconnected)
return (EIO);
#ifdef DIAGNOSTIC
if (!sce->edesc) {
printf("ugenread: no edesc\n");
return (EIO);
}
#endif
switch (sce->edesc->bmAttributes & UE_XFERTYPE) {
case UE_INTERRUPT:
/* Block until activity occured. */
s = spltty();
while (sce->q.c_cc == 0) {
if (flag & IO_NDELAY) {
splx(s);
return EWOULDBLOCK;
}
sce->state |= UGEN_ASLP;
DPRINTFN(5, ("ugenread: sleep on %p\n", sc));
error = tsleep((caddr_t)sce, PZERO | PCATCH,
"ugenrea", 0);
DPRINTFN(5, ("ugenread: woke, error=%d\n", error));
if (error) {
sce->state &= ~UGEN_ASLP;
splx(s);
return (error);
}
}
splx(s);
/* Transfer as many chunks as possible. */
while (sce->q.c_cc > 0 && uio->uio_resid > 0) {
n = min(sce->q.c_cc, uio->uio_resid);
if (n > sizeof(buffer))
n = sizeof(buffer);
/* Remove a small chunk from the input queue. */
q_to_b(&sce->q, buffer, n);
DPRINTFN(5, ("ugenread: got %d chars\n", n));
/* Copy the data to the user process. */
error = uiomove(buffer, n, uio);
if (error)
break;
}
break;
case UE_BULK:
reqh = usbd_alloc_request();
if (reqh == 0)
return (ENOMEM);
while ((n = min(UGEN_BBSIZE, uio->uio_resid)) != 0) {
/* XXX use callback to enable interrupt? */
r = usbd_setup_request(reqh, sce->pipeh, 0, buf, n,
0, USBD_NO_TIMEOUT, 0);
if (r != USBD_NORMAL_COMPLETION) {
error = EIO;
break;
}
DPRINTFN(1, ("ugenread: transfer %d bytes\n", n));
r = usbd_sync_transfer(reqh);
if (r != USBD_NORMAL_COMPLETION) {
DPRINTF(("ugenread: error=%d\n", r));
usbd_clear_endpoint_stall(sce->pipeh);
error = EIO;
break;
}
error = uiomove(buf, n, uio);
if (error)
break;
}
usbd_free_request(reqh);
break;
default:
return (ENXIO);
}
return (error);
}
int
ugenwrite(dev, uio, flag)
dev_t dev;
struct uio *uio;
int flag;
{
struct ugen_softc *sc = ugen_cd.cd_devs[UGENUNIT(dev)];
int endpt = UGENENDPOINT(dev);
struct ugen_endpoint *sce = &sc->sc_endpoints[endpt][IN];
size_t n;
int error = 0;
char buf[UGEN_BBSIZE];
usbd_request_handle reqh;
usbd_status r;
if (sc->sc_disconnected)
return (EIO);
#ifdef DIAGNOSTIC
if (!sce->edesc) {
printf("ugenwrite: no edesc\n");
return (EIO);
}
#endif
DPRINTF(("ugenwrite\n"));
switch (sce->edesc->bmAttributes & UE_XFERTYPE) {
case UE_BULK:
reqh = usbd_alloc_request();
if (reqh == 0)
return (EIO);
while ((n = min(UGEN_BBSIZE, uio->uio_resid)) != 0) {
error = uiomove(buf, n, uio);
if (error)
break;
/* XXX use callback to enable interrupt? */
r = usbd_setup_request(reqh, sce->pipeh, 0, buf, n,
0, USBD_NO_TIMEOUT, 0);
if (r != USBD_NORMAL_COMPLETION) {
error = EIO;
break;
}
DPRINTFN(1, ("ugenwrite: transfer %d bytes\n", n));
r = usbd_sync_transfer(reqh);
if (r != USBD_NORMAL_COMPLETION) {
DPRINTF(("ugenwrite: error=%d\n", r));
usbd_clear_endpoint_stall(sce->pipeh);
error = EIO;
break;
}
}
usbd_free_request(reqh);
break;
default:
return (ENXIO);
}
return (error);
}
void
ugenintr(reqh, addr, status)
usbd_request_handle reqh;
usbd_private_handle addr;
usbd_status status;
{
struct ugen_endpoint *sce = addr;
/*struct ugen_softc *sc = sce->sc;*/
u_char *ibuf;
int isize;
if (status == USBD_CANCELLED)
return;
if (status != USBD_NORMAL_COMPLETION) {
DPRINTF(("ugenintr: status=%d\n", status));
usbd_clear_endpoint_stall_async(sce->pipeh);
return;
}
ibuf = sce->ibuf;
isize = UGETW(sce->edesc->wMaxPacketSize);
/*DPRINTFN(5, ("ugenintr: addr=%d endpt=%d\n",
addr, endpt, isize));
DPRINTFN(5, (" data = %02x %02x %02x\n",
ibuf[0], ibuf[1], ibuf[2]));*/
(void)b_to_q(ibuf, isize, &sce->q);
if (sce->state & UGEN_ASLP) {
sce->state &= ~UGEN_ASLP;
DPRINTFN(5, ("ugen_intr: waking %p\n", sce));
wakeup((caddr_t)sce);
}
selwakeup(&sce->rsel);
}
usbd_status
ugen_set_interface(sc, ifaceidx, altno)
struct ugen_softc *sc;
int ifaceidx, altno;
{
usbd_interface_handle iface;
usb_endpoint_descriptor_t *ed;
usbd_status r;
struct ugen_endpoint *sce;
u_int8_t niface, nendpt, endptno, endpt;
DPRINTFN(15, ("ugen_set_interface %d %d\n", ifaceidx, altno));
r = usbd_interface_count(sc->sc_udev, &niface);
if (r != USBD_NORMAL_COMPLETION)
return (r);
if (ifaceidx < 0 || ifaceidx >= niface)
return (USBD_INVAL);
r = usbd_device2interface_handle(sc->sc_udev, ifaceidx, &iface);
if (r != USBD_NORMAL_COMPLETION)
return (r);
r = usbd_endpoint_count(iface, &nendpt);
if (r != USBD_NORMAL_COMPLETION)
return (r);
for (endptno = 0; endptno < nendpt; endptno++) {
ed = usbd_interface2endpoint_descriptor(iface,endptno);
endpt = ed->bEndpointAddress;
sce = &sc->sc_endpoints[UE_GET_ADDR(endpt)][UE_GET_IN(endpt)];
sce->sc = 0;
sce->edesc = 0;
sce->iface = 0;
}
/* change setting */
r = usbd_set_interface(iface, altno);
if (r != USBD_NORMAL_COMPLETION)
return (r);
r = usbd_endpoint_count(iface, &nendpt);
if (r != USBD_NORMAL_COMPLETION)
return (r);
for (endptno = 0; endptno < nendpt; endptno++) {
ed = usbd_interface2endpoint_descriptor(iface,endptno);
endpt = ed->bEndpointAddress;
sce = &sc->sc_endpoints[UE_GET_ADDR(endpt)][UE_GET_IN(endpt)];
sce->sc = sc;
sce->edesc = ed;
sce->iface = iface;
}
return (0);
}
/* Retrieve a complete descriptor for a certain device and index. */
usb_config_descriptor_t *
ugen_get_cdesc(sc, index, lenp)
struct ugen_softc *sc;
int index;
int *lenp;
{
usb_config_descriptor_t *cdesc, *tdesc, cdescr;
int len;
usbd_status r;
if (index == USB_CURRENT_CONFIG_INDEX) {
tdesc = usbd_get_config_descriptor(sc->sc_udev);
len = UGETW(tdesc->wTotalLength);
if (lenp)
*lenp = len;
cdesc = malloc(len, M_TEMP, M_WAITOK);
memcpy(cdesc, tdesc, len);
DPRINTFN(5,("ugen_get_cdesc: current, len=%d\n", len));
} else {
r = usbd_get_config_desc(sc->sc_udev, index, &cdescr);
if (r != USBD_NORMAL_COMPLETION)
return (0);
len = UGETW(cdescr.wTotalLength);
DPRINTFN(5,("ugen_get_cdesc: index=%d, len=%d\n", index, len));
if (lenp)
*lenp = len;
cdesc = malloc(len, M_TEMP, M_WAITOK);
r = usbd_get_config_desc_full(sc->sc_udev, index, cdesc, len);
if (r != USBD_NORMAL_COMPLETION) {
free(cdesc, M_TEMP);
return (0);
}
}
return (cdesc);
}
int
ugen_get_alt_index(sc, cdesc, ifaceidx)
struct ugen_softc *sc;
usb_config_descriptor_t *cdesc;
int ifaceidx;
{
u_int8_t alt;
usbd_interface_handle iface;
usb_interface_descriptor_t *idesc;
int altidx, nalt;
usbd_status r;
cdesc = usbd_get_config_descriptor(sc->sc_udev);
r = usbd_device2interface_handle(sc->sc_udev, ifaceidx, &iface);
if (r != USBD_NORMAL_COMPLETION)
return (-1);
r = usbd_get_interface(iface, &alt);
if (r != USBD_NORMAL_COMPLETION)
return (-1);
nalt = usbd_get_no_alt(iface);
for (altidx = 0; altidx < nalt; altidx++) {
idesc = usbd_find_idesc(cdesc, ifaceidx, altidx);
if (!idesc) {
DPRINTF(("ugen_get_alt_index: ifaceidx=%d altidx=%d failed\n", ifaceidx, altidx));
return (-1);
}
DPRINTF(("ugen_get_alt_index: ifaceidx=%d altidx=%d alt=%d(%d)\n", ifaceidx, altidx, idesc->bAlternateSetting, alt));
if (idesc->bAlternateSetting == alt)
return (altidx);
}
return (-1);
}
int
ugenioctl(dev, cmd, addr, flag, p)
dev_t dev;
u_long cmd;
caddr_t addr;
int flag;
struct proc *p;
{
struct ugen_softc *sc = ugen_cd.cd_devs[UGENUNIT(dev)];
int endpt = UGENENDPOINT(dev);
usbd_status r;
usbd_interface_handle iface;
struct usb_config_desc *cd;
usb_config_descriptor_t *cdesc;
struct usb_interface_desc *id;
usb_interface_descriptor_t *idesc;
struct usb_endpoint_desc *ed;
usb_endpoint_descriptor_t *edesc;
struct usb_alt_interface *ai;
u_int8_t conf, alt;
DPRINTFN(5, ("ugenioctl: cmd=%08lx\n", cmd));
if (sc->sc_disconnected)
return (EIO);
if (endpt != USB_CONTROL_ENDPOINT)
return (EINVAL);
switch (cmd) {
case USB_GET_CONFIG:
r = usbd_get_config(sc->sc_udev, &conf);
if (r != USBD_NORMAL_COMPLETION)
return (EIO);
*(int *)addr = conf;
break;
case USB_SET_CONFIG:
r = usbd_set_config_no(sc->sc_udev, *(int *)addr, 0);
if (r != USBD_NORMAL_COMPLETION)
return (EIO);
break;
case USB_GET_ALTINTERFACE:
ai = (struct usb_alt_interface *)addr;
r = usbd_device2interface_handle(sc->sc_udev,
ai->interface_index, &iface);
if (r != USBD_NORMAL_COMPLETION)
return (EINVAL);
idesc = usbd_get_interface_descriptor(iface);
ai->alt_no = idesc->bAlternateSetting;
break;
case USB_SET_ALTINTERFACE:
ai = (struct usb_alt_interface *)addr;
r = usbd_device2interface_handle(sc->sc_udev,
ai->interface_index, &iface);
if (r != USBD_NORMAL_COMPLETION)
return (EINVAL);
r = ugen_set_interface(sc, ai->interface_index, ai->alt_no);
if (r != USBD_NORMAL_COMPLETION)
return (EINVAL);
break;
case USB_GET_NO_ALT:
ai = (struct usb_alt_interface *)addr;
r = usbd_device2interface_handle(sc->sc_udev,
ai->interface_index, &iface);
if (r != USBD_NORMAL_COMPLETION)
return (EINVAL);
ai->alt_no = usbd_get_no_alt(iface);
break;
case USB_GET_DEVICE_DESC:
*(usb_device_descriptor_t *)addr =
*usbd_get_device_descriptor(sc->sc_udev);
break;
case USB_GET_CONFIG_DESC:
cd = (struct usb_config_desc *)addr;
cdesc = ugen_get_cdesc(sc, cd->config_index, 0);
if (!cdesc)
return (EINVAL);
cd->desc = *cdesc;
free(cdesc, M_TEMP);
break;
case USB_GET_INTERFACE_DESC:
id = (struct usb_interface_desc *)addr;
cdesc = ugen_get_cdesc(sc, id->config_index, 0);
if (!cdesc)
return (EINVAL);
if (id->config_index == USB_CURRENT_CONFIG_INDEX &&
id->alt_index == USB_CURRENT_ALT_INDEX)
alt = ugen_get_alt_index(sc, cdesc, id->interface_index);
else
alt = id->alt_index;
idesc = usbd_find_idesc(cdesc, id->interface_index, alt);
if (!idesc) {
free(cdesc, M_TEMP);
return (EINVAL);
}
id->desc = *idesc;
free(cdesc, M_TEMP);
break;
case USB_GET_ENDPOINT_DESC:
ed = (struct usb_endpoint_desc *)addr;
cdesc = ugen_get_cdesc(sc, ed->config_index, 0);
if (!cdesc)
return (EINVAL);
if (ed->config_index == USB_CURRENT_CONFIG_INDEX &&
ed->alt_index == USB_CURRENT_ALT_INDEX)
alt = ugen_get_alt_index(sc, cdesc, ed->interface_index);
else
alt = ed->alt_index;
edesc = usbd_find_edesc(cdesc, ed->interface_index,
alt, ed->endpoint_index);
if (!edesc) {
free(cdesc, M_TEMP);
return (EINVAL);
}
ed->desc = *edesc;
free(cdesc, M_TEMP);
break;
case USB_GET_FULL_DESC:
{
int len;
struct iovec iov;
struct uio uio;
struct usb_full_desc *fd = (struct usb_full_desc *)addr;
int error;
cdesc = ugen_get_cdesc(sc, fd->config_index, &len);
if (len > fd->size)
len = fd->size;
iov.iov_base = (caddr_t)fd->data;
iov.iov_len = len;
uio.uio_iov = &iov;
uio.uio_iovcnt = 1;
uio.uio_resid = len;
uio.uio_offset = 0;
uio.uio_segflg = UIO_USERSPACE;
uio.uio_rw = UIO_READ;
uio.uio_procp = p;
error = uiomove(cdesc, len, &uio);
free(cdesc, M_TEMP);
return (error);
}
case USB_DO_REQUEST:
{
struct usb_ctl_request *ur = (void *)addr;
int len = UGETW(ur->request.wLength);
struct iovec iov;
struct uio uio;
void *ptr = 0;
usbd_status r;
int error = 0;
/* Avoid requests that would damage the bus integrity. */
if ((ur->request.bmRequestType == UT_WRITE_DEVICE &&
ur->request.bRequest == UR_SET_ADDRESS) ||
(ur->request.bmRequestType == UT_WRITE_DEVICE &&
ur->request.bRequest == UR_SET_CONFIG) ||
(ur->request.bmRequestType == UT_WRITE_INTERFACE &&
ur->request.bRequest == UR_SET_INTERFACE))
return (EINVAL);
if (len < 0 || len > 32767)
return (EINVAL);
if (len != 0) {
iov.iov_base = (caddr_t)ur->data;
iov.iov_len = len;
uio.uio_iov = &iov;
uio.uio_iovcnt = 1;
uio.uio_resid = len;
uio.uio_offset = 0;
uio.uio_segflg = UIO_USERSPACE;
uio.uio_rw =
ur->request.bmRequestType & UT_READ ?
UIO_READ : UIO_WRITE;
uio.uio_procp = p;
ptr = malloc(len, M_TEMP, M_WAITOK);
if (uio.uio_rw == UIO_WRITE) {
error = uiomove(ptr, len, &uio);
if (error)
goto ret;
}
}
r = usbd_do_request(sc->sc_udev, &ur->request, ptr);
if (r) {
error = EIO;
goto ret;
}
if (len != 0) {
if (uio.uio_rw == UIO_READ) {
error = uiomove(ptr, len, &uio);
if (error)
goto ret;
}
}
ret:
if (ptr)
free(ptr, M_TEMP);
return (error);
}
default:
return (EINVAL);
}
return (0);
}
int
ugenpoll(dev, events, p)
dev_t dev;
int events;
struct proc *p;
{
struct ugen_softc *sc = ugen_cd.cd_devs[UGENUNIT(dev)];
/* XXX */
struct ugen_endpoint *sce = &sc->sc_endpoints[UGENENDPOINT(dev)][IN];
int revents = 0;
int s;
if (sc->sc_disconnected)
return (EIO);
s = spltty();
switch (0 /*XXXsce->sc_pipekind*/) {
case UE_INTERRUPT:
if (events & (POLLIN | POLLRDNORM)) {
if (sce->q.c_cc > 0)
revents |= events & (POLLIN | POLLRDNORM);
else
selrecord(p, &sce->rsel);
}
break;
}
splx(s);
return (revents);
}
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