File: [local] / sys / dev / usb / urio.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: urio.c,v 1.32 2007/06/14 10:11:16 mbalmer Exp $ */
/* $NetBSD: urio.c,v 1.15 2002/10/23 09:14:02 jdolecek Exp $ */
/*
* Copyright (c) 2000 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.
*/
/*
* The inspiration and information for this driver comes from the
* FreeBSD driver written by Iwasa Kazmi.
*/
#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/conf.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/usbdi.h>
#include <dev/usb/usbdi_util.h>
#include <dev/usb/usbdevs.h>
#include <dev/usb/urio.h>
#ifdef URIO_DEBUG
#define DPRINTF(x) do { if (uriodebug) printf x; } while (0)
#define DPRINTFN(n,x) do { if (uriodebug>(n)) printf x; } while (0)
int uriodebug = 0;
#else
#define DPRINTF(x)
#define DPRINTFN(n,x)
#endif
#define URIO_CONFIG_NO 1
#define URIO_IFACE_IDX 0
#define URIO_BSIZE 4096
struct urio_softc {
struct device sc_dev;
usbd_device_handle sc_udev;
usbd_interface_handle sc_iface;
int sc_in_addr;
usbd_pipe_handle sc_in_pipe;
int sc_out_addr;
usbd_pipe_handle sc_out_pipe;
int sc_refcnt;
char sc_dying;
};
#define URIOUNIT(n) (minor(n))
#define URIO_RW_TIMEOUT 4000 /* ms */
static const struct usb_devno urio_devs[] = {
{ USB_VENDOR_DIAMOND, USB_PRODUCT_DIAMOND_RIO500USB},
{ USB_VENDOR_DIAMOND2, USB_PRODUCT_DIAMOND2_RIO600USB},
{ USB_VENDOR_DIAMOND2, USB_PRODUCT_DIAMOND2_RIO800USB},
{ USB_VENDOR_DIAMOND2, USB_PRODUCT_DIAMOND2_PSAPLAY120},
};
#define urio_lookup(v, p) usb_lookup(urio_devs, v, p)
int urio_match(struct device *, void *, void *);
void urio_attach(struct device *, struct device *, void *);
int urio_detach(struct device *, int);
int urio_activate(struct device *, enum devact);
struct cfdriver urio_cd = {
NULL, "urio", DV_DULL
};
const struct cfattach urio_ca = {
sizeof(struct urio_softc),
urio_match,
urio_attach,
urio_detach,
urio_activate,
};
int
urio_match(struct device *parent, void *match, void *aux)
{
struct usb_attach_arg *uaa = aux;
DPRINTFN(50,("urio_match\n"));
if (uaa->iface != NULL)
return (UMATCH_NONE);
return (urio_lookup(uaa->vendor, uaa->product) != NULL ?
UMATCH_VENDOR_PRODUCT : UMATCH_NONE);
}
void
urio_attach(struct device *parent, struct device *self, void *aux)
{
struct urio_softc *sc = (struct urio_softc *)self;
struct usb_attach_arg *uaa = aux;
usbd_device_handle dev = uaa->device;
usbd_interface_handle iface;
char *devinfop;
usbd_status err;
usb_endpoint_descriptor_t *ed;
u_int8_t epcount;
int i;
DPRINTFN(10,("urio_attach: sc=%p\n", sc));
devinfop = usbd_devinfo_alloc(dev, 0);
printf("\n%s: %s\n", sc->sc_dev.dv_xname, devinfop);
usbd_devinfo_free(devinfop);
err = usbd_set_config_no(dev, URIO_CONFIG_NO, 1);
if (err) {
printf("%s: setting config no failed\n",
sc->sc_dev.dv_xname);
return;
}
err = usbd_device2interface_handle(dev, URIO_IFACE_IDX, &iface);
if (err) {
printf("%s: getting interface handle failed\n",
sc->sc_dev.dv_xname);
return;
}
sc->sc_udev = dev;
sc->sc_iface = iface;
epcount = 0;
(void)usbd_endpoint_count(iface, &epcount);
sc->sc_in_addr = -1;
sc->sc_out_addr = -1;
for (i = 0; i < epcount; i++) {
ed = usbd_interface2endpoint_descriptor(iface, i);
if (ed == NULL) {
printf("%s: couldn't get ep %d\n",
sc->sc_dev.dv_xname, i);
return;
}
if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN &&
UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) {
sc->sc_in_addr = ed->bEndpointAddress;
} else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT &&
UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) {
sc->sc_out_addr = ed->bEndpointAddress;
}
}
if (sc->sc_in_addr == -1 || sc->sc_out_addr == -1) {
printf("%s: missing endpoint\n", sc->sc_dev.dv_xname);
return;
}
DPRINTFN(10, ("urio_attach: %p\n", sc->sc_udev));
usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->sc_udev,
&sc->sc_dev);
}
int
urio_detach(struct device *self, int flags)
{
struct urio_softc *sc = (struct urio_softc *)self;
int s;
int maj, mn;
DPRINTF(("urio_detach: sc=%p flags=%d\n", sc, flags));
sc->sc_dying = 1;
/* Abort all pipes. Causes processes waiting for transfer to wake. */
if (sc->sc_in_pipe != NULL) {
usbd_abort_pipe(sc->sc_in_pipe);
usbd_close_pipe(sc->sc_in_pipe);
sc->sc_in_pipe = NULL;
}
if (sc->sc_out_pipe != NULL) {
usbd_abort_pipe(sc->sc_out_pipe);
usbd_close_pipe(sc->sc_out_pipe);
sc->sc_out_pipe = NULL;
}
s = splusb();
if (--sc->sc_refcnt >= 0) {
/* Wait for processes to go away. */
usb_detach_wait(&sc->sc_dev);
}
splx(s);
/* locate the major number */
for (maj = 0; maj < nchrdev; maj++)
if (cdevsw[maj].d_open == urioopen)
break;
/* Nuke the vnodes for any open instances (calls close). */
mn = self->dv_unit;
vdevgone(maj, mn, mn, VCHR);
usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->sc_udev,
&sc->sc_dev);
return (0);
}
int
urio_activate(struct device *self, enum devact act)
{
struct urio_softc *sc = (struct urio_softc *)self;
switch (act) {
case DVACT_ACTIVATE:
break;
case DVACT_DEACTIVATE:
sc->sc_dying = 1;
break;
}
return (0);
}
int
urioopen(dev_t dev, int flag, int mode, struct proc *p)
{
struct urio_softc *sc;
usbd_status err;
if (URIOUNIT(dev) >= urio_cd.cd_ndevs)
return (ENXIO);
sc = urio_cd.cd_devs[URIOUNIT(dev)];
if (sc == NULL)
return (ENXIO);
DPRINTFN(5, ("urioopen: flag=%d, mode=%d, unit=%d\n",
flag, mode, URIOUNIT(dev)));
if (sc->sc_dying)
return (EIO);
if (sc->sc_in_pipe != NULL)
return (EBUSY);
if ((flag & (FWRITE|FREAD)) != (FWRITE|FREAD))
return (EACCES);
err = usbd_open_pipe(sc->sc_iface, sc->sc_in_addr, 0, &sc->sc_in_pipe);
if (err)
return (EIO);
err = usbd_open_pipe(sc->sc_iface, sc->sc_out_addr,0,&sc->sc_out_pipe);
if (err) {
usbd_close_pipe(sc->sc_in_pipe);
sc->sc_in_pipe = NULL;
return (EIO);
}
return (0);
}
int
urioclose(dev_t dev, int flag, int mode, struct proc *p)
{
struct urio_softc *sc;
sc = urio_cd.cd_devs[URIOUNIT(dev)];
DPRINTFN(5, ("urioclose: flag=%d, mode=%d, unit=%d\n",
flag, mode, URIOUNIT(dev)));
if (sc->sc_in_pipe != NULL) {
usbd_abort_pipe(sc->sc_in_pipe);
usbd_close_pipe(sc->sc_in_pipe);
sc->sc_in_pipe = NULL;
}
if (sc->sc_out_pipe != NULL) {
usbd_abort_pipe(sc->sc_out_pipe);
usbd_close_pipe(sc->sc_out_pipe);
sc->sc_out_pipe = NULL;
}
return (0);
}
int
urioread(dev_t dev, struct uio *uio, int flag)
{
struct urio_softc *sc;
usbd_xfer_handle xfer;
usbd_status err;
void *bufp;
u_int32_t n, tn;
int error = 0;
sc = urio_cd.cd_devs[URIOUNIT(dev)];
DPRINTFN(5, ("urioread: %d\n", URIOUNIT(dev)));
if (sc->sc_dying)
return (EIO);
xfer = usbd_alloc_xfer(sc->sc_udev);
if (xfer == NULL)
return (ENOMEM);
bufp = usbd_alloc_buffer(xfer, URIO_BSIZE);
if (bufp == NULL) {
usbd_free_xfer(xfer);
return (ENOMEM);
}
sc->sc_refcnt++;
while ((n = min(URIO_BSIZE, uio->uio_resid)) != 0) {
DPRINTFN(1, ("urioread: start transfer %d bytes\n", n));
tn = n;
err = usbd_bulk_transfer(xfer, sc->sc_in_pipe, USBD_NO_COPY,
URIO_RW_TIMEOUT, bufp, &tn, "uriors");
if (err) {
if (err == USBD_INTERRUPTED)
error = EINTR;
else if (err == USBD_TIMEOUT)
error = ETIMEDOUT;
else
error = EIO;
break;
}
DPRINTFN(1, ("urioread: got %d bytes\n", tn));
error = uiomove(bufp, tn, uio);
if (error || tn < n)
break;
}
usbd_free_xfer(xfer);
if (--sc->sc_refcnt < 0)
usb_detach_wakeup(&sc->sc_dev);
return (error);
}
int
uriowrite(dev_t dev, struct uio *uio, int flag)
{
struct urio_softc *sc;
usbd_xfer_handle xfer;
usbd_status err;
void *bufp;
u_int32_t n;
int error = 0;
sc = urio_cd.cd_devs[URIOUNIT(dev)];
DPRINTFN(5, ("uriowrite: unit=%d, len=%ld\n", URIOUNIT(dev),
(long)uio->uio_resid));
if (sc->sc_dying)
return (EIO);
xfer = usbd_alloc_xfer(sc->sc_udev);
if (xfer == NULL)
return (ENOMEM);
bufp = usbd_alloc_buffer(xfer, URIO_BSIZE);
if (bufp == NULL) {
usbd_free_xfer(xfer);
return (ENOMEM);
}
sc->sc_refcnt++;
while ((n = min(URIO_BSIZE, uio->uio_resid)) != 0) {
error = uiomove(bufp, n, uio);
if (error)
break;
DPRINTFN(1, ("uriowrite: transfer %d bytes\n", n));
err = usbd_bulk_transfer(xfer, sc->sc_out_pipe, USBD_NO_COPY,
URIO_RW_TIMEOUT, bufp, &n, "uriowr");
DPRINTFN(2, ("uriowrite: err=%d\n", err));
if (err) {
if (err == USBD_INTERRUPTED)
error = EINTR;
else if (err == USBD_TIMEOUT)
error = ETIMEDOUT;
else
error = EIO;
break;
}
}
usbd_free_xfer(xfer);
if (--sc->sc_refcnt < 0)
usb_detach_wakeup(&sc->sc_dev);
DPRINTFN(5, ("uriowrite: done unit=%d, error=%d\n", URIOUNIT(dev),
error));
return (error);
}
int
urioioctl(dev_t dev, u_long cmd, caddr_t addr, int flag, struct proc *p)
{
struct urio_softc * sc;
int unit = URIOUNIT(dev);
struct urio_command *rcmd;
int requesttype, len;
struct iovec iov;
struct uio uio;
usb_device_request_t req;
usbd_status err;
int req_flags = 0;
u_int32_t req_actlen = 0;
void *ptr = NULL;
int error = 0;
sc = urio_cd.cd_devs[unit];
if (sc->sc_dying)
return (EIO);
rcmd = (struct urio_command *)addr;
switch (cmd) {
case URIO_RECV_COMMAND:
requesttype = rcmd->requesttype | UT_READ_VENDOR_DEVICE;
break;
case URIO_SEND_COMMAND:
requesttype = rcmd->requesttype | UT_WRITE_VENDOR_DEVICE;
break;
default:
return (EINVAL);
break;
}
if (!(flag & FWRITE))
return (EPERM);
len = rcmd->length;
DPRINTFN(1,("urio_ioctl: cmd=0x%08lx reqtype=0x%0x req=0x%0x "
"value=0x%0x index=0x%0x len=0x%0x\n",
cmd, requesttype, rcmd->request, rcmd->value,
rcmd->index, len));
/* Send rio control message */
req.bmRequestType = requesttype;
req.bRequest = rcmd->request;
USETW(req.wValue, rcmd->value);
USETW(req.wIndex, rcmd->index);
USETW(req.wLength, len);
if (len < 0 || len > 32767)
return (EINVAL);
if (len != 0) {
iov.iov_base = (caddr_t)rcmd->buffer;
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 = req.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;
}
}
sc->sc_refcnt++;
err = usbd_do_request_flags(sc->sc_udev, &req, ptr, req_flags,
&req_actlen, USBD_DEFAULT_TIMEOUT);
if (--sc->sc_refcnt < 0)
usb_detach_wakeup(&sc->sc_dev);
if (err) {
error = EIO;
} else {
if (len != 0 && uio.uio_rw == UIO_READ)
error = uiomove(ptr, len, &uio);
}
ret:
if (ptr != NULL)
free(ptr, M_TEMP);
return (error);
}
int
uriopoll(dev_t dev, int events, struct proc *p)
{
return (0);
}