freebsd-skq/sys/dev/usb/urio.c

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/*
* Copyright (c) 2000 Iwasa Kazmi <kzmi@ca2.so-net.ne.jp>
* All rights reserved.
*
* 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 AUTHOR 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 AUTHOR 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.
*
* This code is based on ugen.c and ulpt.c developed by Lennart Augustsson.
* This code includes software developed by the NetBSD Foundation, Inc. and
* its contributors.
*/
/* $FreeBSD$ */
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/malloc.h>
#if defined(__NetBSD__)
#include <sys/device.h>
#include <sys/ioctl.h>
#elif defined(__FreeBSD__)
#include <sys/module.h>
#include <sys/bus.h>
#include <sys/ioccom.h>
#include <sys/conf.h>
#include <sys/fcntl.h>
#include <sys/filio.h>
#endif
#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/usbdi.h>
#include <dev/usb/usbdi_util.h>
#include <dev/usb/usbdevs.h>
#include <dev/usb/rio_usb.h>
#ifdef URIO_DEBUG
#define DPRINTF(x) if (uriodebug) logprintf x
#define DPRINTFN(n,x) if (uriodebug>(n)) logprintf x
int uriodebug = 100;
#else
#define DPRINTF(x)
#define DPRINTFN(n,x)
#endif
#if defined(__NetBSD__)
int urioopen __P((dev_t, int, int, struct proc *));
int urioclose __P((dev_t, int, int, struct proc *p));
int urioread __P((dev_t, struct uio *uio, int));
int uriowrite __P((dev_t, struct uio *uio, int));
int urioioctl __P((dev_t, u_long, caddr_t, int, struct proc *));
#elif defined(__FreeBSD__)
d_open_t urioopen;
d_close_t urioclose;
d_read_t urioread;
d_write_t uriowrite;
d_ioctl_t urioioctl;
#define URIO_CDEV_MAJOR 143
#define RIO_OUT 0
#define RIO_IN 1
#define RIO_NODIR 2
#if (__FreeBSD__ >= 4)
Static struct cdevsw urio_cdevsw = {
urioopen, urioclose, urioread, uriowrite,
urioioctl, nopoll, nommap, nostrategy,
"urio", URIO_CDEV_MAJOR,nodump, nopsize,
0, -1
};
#define RIO_UE_GET_DIR(p) ((UE_GET_DIR(p) == UE_DIR_IN) ? RIO_IN :\
((UE_GET_DIR(p) == UE_DIR_OUT) ? RIO_OUT :\
RIO_NODIR))
#else
Static struct cdevsw urio_cdevsw = {
urioopen, urioclose, urioread, uriowrite,
urioioctl, nostop, nullreset, nodevtotty,
seltrue, nommap, nostrat,
"urio", NULL, -1
};
#define USBBASEDEVICE bdevice
#define RIO_UE_GET_DIR(p) UE_GET_IN(p)
#endif
#endif /*defined(__FreeBSD__)*/
#define URIO_BBSIZE 1024
struct urio_softc {
USBBASEDEVICE sc_dev;
usbd_device_handle sc_udev;
usbd_interface_handle sc_iface;
int sc_opened;
usbd_pipe_handle sc_pipeh;
int sc_dir;
int sc_epaddr[2];
};
#define URIOUNIT(n) (minor(n))
#define RIO_RW_TIMEOUT 4000 /* ms */
USB_DECLARE_DRIVER(urio);
USB_MATCH(urio)
{
USB_MATCH_START(urio, uaa);
usb_device_descriptor_t *dd;
DPRINTFN(10,("urio_match\n"));
if (!uaa->iface)
return UMATCH_NONE;
dd = usbd_get_device_descriptor(uaa->device);
if (dd &&
UGETW(dd->idVendor) == USB_VENDOR_DIAMOND &&
UGETW(dd->idProduct) == USB_PRODUCT_DIAMOND_RIO500USB)
return UMATCH_VENDOR_PRODUCT;
else
return UMATCH_NONE;
}
USB_ATTACH(urio)
{
USB_ATTACH_START(urio, sc, uaa);
char devinfo[1024];
usb_endpoint_descriptor_t *edesc;
u_int8_t epcount;
usbd_status r;
char * ermsg = "<none>";
int i;
DPRINTFN(10,("urio_attach: sc=%p\n", sc));
usbd_devinfo(uaa->device, 0, devinfo);
USB_ATTACH_SETUP;
printf("%s: %s\n", USBDEVNAME(sc->sc_dev), devinfo);
sc->sc_udev = uaa->device;
if ((!uaa->device) || (!uaa->iface)) {
ermsg = "device or iface";
goto nobulk;
}
sc->sc_iface = uaa->iface;
sc->sc_opened = 0;
r = usbd_endpoint_count(uaa->iface, &epcount);
if (r != USBD_NORMAL_COMPLETION) {
ermsg = "endpoints";
goto nobulk;
}
sc->sc_epaddr[RIO_OUT] = 0xff;
sc->sc_epaddr[RIO_IN] = 0x00;
for (i = 0; i < epcount; i++) {
edesc = usbd_interface2endpoint_descriptor(uaa->iface, i);
if (!edesc) {
ermsg = "interface endpoint";
goto nobulk;
}
sc->sc_epaddr[RIO_UE_GET_DIR(edesc->bEndpointAddress)]
= edesc->bEndpointAddress;
}
if ( sc->sc_epaddr[RIO_OUT] == 0xff ||
sc->sc_epaddr[RIO_IN] == 0x00) {
ermsg = "Rio I&O";
goto nobulk;
}
#if (__FreeBSD__ >= 4)
/* XXX no error trapping, no storing of dev_t */
(void) make_dev(&urio_cdevsw, device_get_unit(self),
UID_ROOT, GID_OPERATOR,
0644, "urio%d", device_get_unit(self));
#endif
DPRINTFN(10, ("urio_attach: %p\n", sc->sc_udev));
USB_ATTACH_SUCCESS_RETURN;
nobulk:
printf("%s: could not find %s\n", USBDEVNAME(sc->sc_dev),ermsg);
USB_ATTACH_ERROR_RETURN;
}
int
urioopen(dev, flag, mode, p)
dev_t dev;
int flag;
int mode;
struct proc *p;
{
#if (__FreeBSD__ >= 4)
struct urio_softc * sc;
#endif
int unit = URIOUNIT(dev);
USB_GET_SC_OPEN(urio, unit, sc);
DPRINTFN(5, ("urioopen: flag=%d, mode=%d, unit=%d\n",
flag, mode, unit));
if (sc->sc_opened)
return EBUSY;
if ((flag & (FWRITE|FREAD)) != (FWRITE|FREAD))
return EACCES;
sc->sc_opened = 1;
sc->sc_pipeh = 0;
sc->sc_dir = RIO_NODIR;
return 0;
}
int
urioclose(dev, flag, mode, p)
dev_t dev;
int flag;
int mode;
struct proc *p;
{
#if (__FreeBSD__ >= 4)
struct urio_softc * sc;
#endif
int unit = URIOUNIT(dev);
USB_GET_SC(urio, unit, sc);
DPRINTFN(5, ("urioclose: flag=%d, mode=%d, unit=%d\n", flag, mode, unit));
if (sc->sc_pipeh) {
/*usbd_abort_pipe(sc->sc_pipeh);*/
usbd_close_pipe(sc->sc_pipeh);
}
sc->sc_opened = 0;
return 0;
}
int
urioread(dev, uio, flag)
dev_t dev;
struct uio *uio;
int flag;
{
#if (__FreeBSD__ >= 4)
struct urio_softc * sc;
usbd_xfer_handle reqh;
#else
usbd_request_handle reqh;
usbd_private_handle r_priv;
void *r_buff;
usbd_status r_status;
#endif
int unit = URIOUNIT(dev);
usbd_status r;
char buf[URIO_BBSIZE];
u_int32_t n, tn;
int error = 0;
USB_GET_SC(urio, unit, sc);
DPRINTFN(5, ("urioread: %d\n", unit));
if (!sc->sc_opened)
return EIO;
if (sc->sc_dir != RIO_IN) {
if (sc->sc_pipeh) {
/*usbd_abort_pipe(sc->sc_pipeh);*/
usbd_close_pipe(sc->sc_pipeh);
}
sc->sc_pipeh = 0;
sc->sc_dir = RIO_NODIR;
r = usbd_open_pipe(sc->sc_iface,
sc->sc_epaddr[RIO_IN], 0,
&sc->sc_pipeh);
if (r != USBD_NORMAL_COMPLETION)
return EIO;
sc->sc_dir = RIO_IN;
}
#if (__FreeBSD__ >= 4)
reqh = usbd_alloc_xfer(sc->sc_udev);
#else
reqh = usbd_alloc_request();
#endif
if (reqh == 0)
return ENOMEM;
while ((n = min(URIO_BBSIZE, uio->uio_resid)) != 0) {
DPRINTFN(1, ("urioread: start transfer %d bytes\n", n));
tn = n;
#if (__FreeBSD__ >= 4)
usbd_setup_xfer(reqh, sc->sc_pipeh, 0, buf, tn,
0, RIO_RW_TIMEOUT, 0);
#else
r = usbd_setup_request(reqh, sc->sc_pipeh, 0, buf, tn,
0, RIO_RW_TIMEOUT, 0);
if (r != USBD_NORMAL_COMPLETION) {
error = EIO;
break;
}
#endif
r = usbd_sync_transfer(reqh);
if (r != USBD_NORMAL_COMPLETION) {
DPRINTFN(1, ("urioread: error=%d\n", r));
usbd_clear_endpoint_stall(sc->sc_pipeh);
tn = 0;
error = EIO;
break;
}
#if (__FreeBSD__ >= 4)
usbd_get_xfer_status(reqh, 0, 0, &tn, 0);
#else
usbd_get_request_status(reqh, &r_priv, &r_buff, &tn, &r_status);
#endif
DPRINTFN(1, ("urioread: got %d bytes\n", tn));
error = uiomove(buf, tn, uio);
if (error || tn < n)
break;
}
#if (__FreeBSD__ >= 4)
usbd_free_xfer(reqh);
#else
usbd_free_request(reqh);
#endif
return error;
}
int
uriowrite(dev, uio, flag)
dev_t dev;
struct uio *uio;
int flag;
{
#if (__FreeBSD__ >= 4)
struct urio_softc * sc;
usbd_xfer_handle reqh;
#else
usbd_request_handle reqh;
#endif
int unit = URIOUNIT(dev);
usbd_status r;
char buf[URIO_BBSIZE];
u_int32_t n;
int error = 0;
USB_GET_SC(urio, unit, sc);
DPRINTFN(5, ("uriowrite: %d\n", unit));
if (!sc->sc_opened)
return EIO;
if (sc->sc_dir != RIO_OUT) {
if (sc->sc_pipeh) {
/*usbd_abort_pipe(sc->sc_pipeh);*/
usbd_close_pipe(sc->sc_pipeh);
}
sc->sc_pipeh = 0;
sc->sc_dir = RIO_NODIR;
r = usbd_open_pipe(sc->sc_iface,
sc->sc_epaddr[RIO_OUT], 0,
&sc->sc_pipeh);
if (r != USBD_NORMAL_COMPLETION)
return EIO;
sc->sc_dir = RIO_OUT;
}
#if (__FreeBSD__ >= 4)
reqh = usbd_alloc_xfer(sc->sc_udev);
#else
reqh = usbd_alloc_request();
#endif
if (reqh == 0)
return EIO;
while ((n = min(URIO_BBSIZE, uio->uio_resid)) != 0) {
error = uiomove(buf, n, uio);
if (error)
break;
DPRINTFN(1, ("uriowrite: transfer %d bytes\n", n));
#if (__FreeBSD__ >= 4)
usbd_setup_xfer(reqh, sc->sc_pipeh, 0, buf, n,
0, RIO_RW_TIMEOUT, 0);
#else
r = usbd_setup_request(reqh, sc->sc_pipeh, 0, buf, n,
0, RIO_RW_TIMEOUT, 0);
if (r != USBD_NORMAL_COMPLETION) {
error = EIO;
break;
}
#endif
r = usbd_sync_transfer(reqh);
if (r != USBD_NORMAL_COMPLETION) {
DPRINTFN(1, ("uriowrite: error=%d\n", r));
usbd_clear_endpoint_stall(sc->sc_pipeh);
error = EIO;
break;
}
#if (__FreeBSD__ >= 4)
usbd_get_xfer_status(reqh, 0, 0, 0, 0);
#endif
}
#if (__FreeBSD__ >= 4)
usbd_free_xfer(reqh);
#else
usbd_free_request(reqh);
#endif
return error;
}
int
urioioctl(dev, cmd, addr, flag, p)
dev_t dev;
u_long cmd;
caddr_t addr;
int flag;
struct proc *p;
{
#if (__FreeBSD__ >= 4)
struct urio_softc * sc;
#endif
int unit = URIOUNIT(dev);
struct RioCommand *rio_cmd;
int requesttype, len;
struct iovec iov;
struct uio uio;
usb_device_request_t req;
int req_flags = 0, req_actlen = 0;
void *ptr = 0;
int error = 0;
usbd_status r;
USB_GET_SC(urio, unit, sc);
switch (cmd) {
case RIO_RECV_COMMAND:
if (!(flag & FWRITE))
return EPERM;
rio_cmd = (struct RioCommand *)addr;
if (rio_cmd == NULL)
return EINVAL;
len = rio_cmd->length;
requesttype = rio_cmd->requesttype | UT_READ_VENDOR_DEVICE;
DPRINTFN(1,("sending command:reqtype=%0x req=%0x value=%0x index=%0x len=%0x\n",
requesttype, rio_cmd->request, rio_cmd->value, rio_cmd->index, len));
break;
case RIO_SEND_COMMAND:
if (!(flag & FWRITE))
return EPERM;
rio_cmd = (struct RioCommand *)addr;
if (rio_cmd == NULL)
return EINVAL;
len = rio_cmd->length;
requesttype = rio_cmd->requesttype | UT_WRITE_VENDOR_DEVICE;
DPRINTFN(1,("sending command:reqtype=%0x req=%0x value=%0x index=%0x len=%0x\n",
requesttype, rio_cmd->request, rio_cmd->value, rio_cmd->index, len));
break;
default:
return EINVAL;
break;
}
/* Send rio control message */
req.bmRequestType = requesttype;
req.bRequest = rio_cmd->request;
USETW(req.wValue, rio_cmd->value);
USETW(req.wIndex, rio_cmd->index);
USETW(req.wLength, len);
if (len < 0 || len > 32767)
return EINVAL;
if (len != 0) {
iov.iov_base = (caddr_t)rio_cmd->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;
}
}
r = usbd_do_request_flags(sc->sc_udev, &req,
ptr, req_flags, &req_actlen);
if (r == USBD_NORMAL_COMPLETION) {
error = 0;
if (len != 0) {
if (uio.uio_rw == UIO_READ) {
error = uiomove(ptr, len, &uio);
}
}
} else {
error = EIO;
}
ret:
if (ptr)
free(ptr, M_TEMP);
return error;
}
#if defined(__FreeBSD__)
Static int
urio_detach(device_t self)
{
DPRINTF(("%s: disconnected\n", USBDEVNAME(self)));
device_set_desc(self, NULL);
return 0;
}
#if (__FreeBSD__ >= 4)
DRIVER_MODULE(urio, uhub, urio_driver, urio_devclass, usbd_driver_load, 0);
#else
CDEV_DRIVER_MODULE(urio, uhub, urio_driver, urio_devclass,
URIO_CDEV_MAJOR, urio_cdevsw, usbd_driver_load, 0);
#endif
#endif