static void
ugen_stop_io(struct usb_fifo *f)
{
/* stop transfers */
usbd_transfer_stop(f->xfer[0]);
usbd_transfer_stop(f->xfer[1]);
}
static void
uhid_stop_write(struct usb_fifo *fifo)
{
struct uhid_softc *sc = usb_fifo_softc(fifo);
usbd_transfer_stop(sc->sc_xfer[UHID_CTRL_DT_WR]);
usbd_transfer_stop(sc->sc_xfer[UHID_INTR_DT_WR]);
}
static void
ipheth_stop(struct usb_ether *ue)
{
struct ipheth_softc *sc = uether_getsc(ue);
/*
* Stop the USB transfers, if not already stopped:
*/
usbd_transfer_stop(sc->sc_xfer[IPHETH_BULK_TX]);
usbd_transfer_stop(sc->sc_xfer[IPHETH_BULK_RX]);
}
static void
uhso_ucom_stop_write(struct ucom_softc *ucom)
{
struct uhso_softc *sc = ucom->sc_parent;
if (UHSO_IFACE_USB_TYPE(sc->sc_type) & UHSO_IF_MUX) {
usbd_transfer_stop(
sc->sc_tty[ucom->sc_subunit].ht_xfer[UHSO_CTRL_WRITE]);
}
else if (UHSO_IFACE_USB_TYPE(sc->sc_type) & UHSO_IF_BULK) {
usbd_transfer_stop(sc->sc_xfer[UHSO_BULK_ENDPT_WRITE]);
}
}
static void
usie_uc_stop_write(struct ucom_softc *ucom)
{
struct usie_softc *sc = ucom->sc_parent;
usbd_transfer_stop(sc->sc_uc_xfer[ucom->sc_subunit][USIE_UC_TX]);
}
static void
usie_uc_cfg_close(struct ucom_softc *ucom)
{
struct usie_softc *sc = ucom->sc_parent;
usbd_transfer_stop(sc->sc_uc_xfer[ucom->sc_subunit][USIE_UC_STATUS]);
}
static void
usbd_irpcancel(device_object *dobj, irp *ip)
{
device_t dev = IRP_NDIS_DEV(ip);
struct ndis_softc *sc = device_get_softc(dev);
struct ndisusb_ep *ne = IRP_NDISUSB_EP(ip);
if (ne == NULL) {
ip->irp_cancel = TRUE;
IoReleaseCancelSpinLock(ip->irp_cancelirql);
return;
}
/*
* Make sure that the current USB transfer proxy is
* cancelled and then restarted.
*/
NDISUSB_LOCK(sc);
usbd_transfer_stop(ne->ne_xfer[0]);
usbd_transfer_start(ne->ne_xfer[0]);
NDISUSB_UNLOCK(sc);
ip->irp_cancel = TRUE;
IoReleaseCancelSpinLock(ip->irp_cancelirql);
}
static void
usbd_task(device_object *dobj, void *arg)
{
irp *ip;
list_entry *l;
struct ndis_softc *sc = arg;
struct ndisusb_ep *ne;
struct ndisusb_task *nt;
union usbd_urb *urb;
if (IsListEmpty(&sc->ndisusb_tasklist))
return;
KeAcquireSpinLockAtDpcLevel(&sc->ndisusb_tasklock);
l = sc->ndisusb_tasklist.nle_flink;
while (l != &sc->ndisusb_tasklist) {
nt = CONTAINING_RECORD(l, struct ndisusb_task, nt_tasklist);
ip = nt->nt_ctx;
urb = usbd_geturb(ip);
KeReleaseSpinLockFromDpcLevel(&sc->ndisusb_tasklock);
NDISUSB_LOCK(sc);
switch (nt->nt_type) {
case NDISUSB_TASK_TSTART:
ne = usbd_get_ndisep(ip, urb->uu_bulkintr.ubi_epdesc);
if (ne == NULL)
goto exit;
usbd_transfer_start(ne->ne_xfer[0]);
break;
case NDISUSB_TASK_IRPCANCEL:
ne = usbd_get_ndisep(ip,
(nt->nt_type == NDISUSB_TASK_IRPCANCEL) ?
urb->uu_bulkintr.ubi_epdesc :
urb->uu_pipe.upr_handle);
if (ne == NULL)
goto exit;
usbd_transfer_stop(ne->ne_xfer[0]);
usbd_transfer_start(ne->ne_xfer[0]);
break;
case NDISUSB_TASK_VENDOR:
ne = (urb->uu_vcreq.uvc_trans_flags &
USBD_TRANSFER_DIRECTION_IN) ?
&sc->ndisusb_dread_ep : &sc->ndisusb_dwrite_ep;
usbd_transfer_start(ne->ne_xfer[0]);
break;
default:
break;
}
exit:
NDISUSB_UNLOCK(sc);
KeAcquireSpinLockAtDpcLevel(&sc->ndisusb_tasklock);
l = l->nle_flink;
RemoveEntryList(&nt->nt_tasklist);
free(nt, M_USBDEV);
}
KeReleaseSpinLockFromDpcLevel(&sc->ndisusb_tasklock);
}
static void
uhso_ucom_stop_read(struct ucom_softc *ucom)
{
struct uhso_softc *sc = ucom->sc_parent;
if (UHSO_IFACE_USB_TYPE(sc->sc_type) & UHSO_IF_MUX) {
sc->sc_tty[ucom->sc_subunit].ht_open = 0;
usbd_transfer_stop(
sc->sc_tty[ucom->sc_subunit].ht_xfer[UHSO_CTRL_READ]);
}
else if (UHSO_IFACE_USB_TYPE(sc->sc_type) & UHSO_IF_BULK) {
sc->sc_tty[0].ht_open = 0;
usbd_transfer_start(sc->sc_xfer[UHSO_BULK_ENDPT_READ]);
if (sc->sc_xfer[UHSO_BULK_ENDPT_INTR] != NULL)
usbd_transfer_stop(sc->sc_xfer[UHSO_BULK_ENDPT_INTR]);
}
}
static void
cdce_stop(struct usb_ether *ue)
{
struct cdce_softc *sc = uether_getsc(ue);
struct ifnet *ifp = uether_getifp(ue);
CDCE_LOCK_ASSERT(sc, MA_OWNED);
ifp->if_drv_flags &= ~IFF_DRV_RUNNING;
/*
* stop all the transfers, if not already stopped:
*/
usbd_transfer_stop(sc->sc_xfer[CDCE_BULK_RX]);
usbd_transfer_stop(sc->sc_xfer[CDCE_BULK_TX]);
usbd_transfer_stop(sc->sc_xfer[CDCE_INTR_RX]);
usbd_transfer_stop(sc->sc_xfer[CDCE_INTR_TX]);
}
static void
usie_if_stop(struct usie_softc *sc)
{
usb_callout_drain(&sc->sc_if_sync_ch);
mtx_lock(&sc->sc_mtx);
/* usie_cns_req() clears IFF_* flags */
usie_cns_req(sc, USIE_CNS_ID_STOP, USIE_CNS_OB_LINK_UPDATE);
usbd_transfer_stop(sc->sc_if_xfer[USIE_IF_TX]);
usbd_transfer_stop(sc->sc_if_xfer[USIE_IF_RX]);
usbd_transfer_stop(sc->sc_if_xfer[USIE_IF_STATUS]);
/* shutdown device */
usie_if_cmd(sc, USIE_HIP_DOWN);
mtx_unlock(&sc->sc_mtx);
}
static void
ugen_close(struct usb_fifo *f, int fflags)
{
DPRINTFN(6, "flag=0x%x\n", fflags);
/* cleanup */
mtx_lock(f->priv_mtx);
usbd_transfer_stop(f->xfer[0]);
usbd_transfer_stop(f->xfer[1]);
mtx_unlock(f->priv_mtx);
usbd_transfer_unsetup(f->xfer, 2);
usb_fifo_free_buffer(f);
if (ugen_fs_uninit(f)) {
/* ignore any errors - we are closing */
DPRINTFN(6, "no FIFOs\n");
}
}
static int32_t
usbd_func_abort_pipe(irp *ip)
{
device_t dev = IRP_NDIS_DEV(ip);
struct ndis_softc *sc = device_get_softc(dev);
struct ndisusb_ep *ne;
union usbd_urb *urb;
urb = usbd_geturb(ip);
ne = usbd_get_ndisep(ip, urb->uu_pipe.upr_handle);
if (ne == NULL) {
device_printf(IRP_NDIS_DEV(ip), "get NULL endpoint info.\n");
return (USBD_STATUS_INVALID_PIPE_HANDLE);
}
NDISUSB_LOCK(sc);
usbd_transfer_stop(ne->ne_xfer[0]);
usbd_transfer_start(ne->ne_xfer[0]);
NDISUSB_UNLOCK(sc);
return (USBD_STATUS_SUCCESS);
}
static int
ugen_ioctl(struct usb_fifo *f, u_long cmd, void *addr, int fflags)
{
struct usb_config usb_config[1];
struct usb_device_request req;
union {
struct usb_fs_complete *pcomp;
struct usb_fs_start *pstart;
struct usb_fs_stop *pstop;
struct usb_fs_open *popen;
struct usb_fs_close *pclose;
struct usb_fs_clear_stall_sync *pstall;
void *addr;
} u;
struct usb_endpoint *ep;
struct usb_endpoint_descriptor *ed;
int error = 0;
uint8_t iface_index;
uint8_t isread;
uint8_t ep_index;
u.addr = addr;
DPRINTFN(6, "cmd=0x%08lx\n", cmd);
switch (cmd) {
case USB_FS_COMPLETE:
mtx_lock(f->priv_mtx);
error = ugen_fs_get_complete(f, &ep_index);
mtx_unlock(f->priv_mtx);
if (error) {
error = EBUSY;
break;
}
u.pcomp->ep_index = ep_index;
error = ugen_fs_copy_out(f, u.pcomp->ep_index);
break;
case USB_FS_START:
error = ugen_fs_copy_in(f, u.pstart->ep_index);
if (error) {
break;
}
mtx_lock(f->priv_mtx);
usbd_transfer_start(f->fs_xfer[u.pstart->ep_index]);
mtx_unlock(f->priv_mtx);
break;
case USB_FS_STOP:
if (u.pstop->ep_index >= f->fs_ep_max) {
error = EINVAL;
break;
}
mtx_lock(f->priv_mtx);
usbd_transfer_stop(f->fs_xfer[u.pstop->ep_index]);
mtx_unlock(f->priv_mtx);
break;
case USB_FS_OPEN:
if (u.popen->ep_index >= f->fs_ep_max) {
error = EINVAL;
break;
}
if (f->fs_xfer[u.popen->ep_index] != NULL) {
error = EBUSY;
break;
}
if (u.popen->max_bufsize > USB_FS_MAX_BUFSIZE) {
u.popen->max_bufsize = USB_FS_MAX_BUFSIZE;
}
if (u.popen->max_frames > USB_FS_MAX_FRAMES) {
u.popen->max_frames = USB_FS_MAX_FRAMES;
break;
}
if (u.popen->max_frames == 0) {
error = EINVAL;
break;
}
ep = usbd_get_ep_by_addr(f->udev, u.popen->ep_no);
if (ep == NULL) {
error = EINVAL;
break;
}
ed = ep->edesc;
if (ed == NULL) {
error = ENXIO;
break;
}
iface_index = ep->iface_index;
bzero(usb_config, sizeof(usb_config));
usb_config[0].type = ed->bmAttributes & UE_XFERTYPE;
usb_config[0].endpoint = ed->bEndpointAddress & UE_ADDR;
usb_config[0].direction = ed->bEndpointAddress & (UE_DIR_OUT | UE_DIR_IN);
usb_config[0].interval = USB_DEFAULT_INTERVAL;
usb_config[0].flags.proxy_buffer = 1;
usb_config[0].callback = &ugen_default_fs_callback;
usb_config[0].timeout = 0; /* no timeout */
usb_config[0].frames = u.popen->max_frames;
usb_config[0].bufsize = u.popen->max_bufsize;
usb_config[0].usb_mode = USB_MODE_DUAL; /* both modes */
if (usb_config[0].type == UE_CONTROL) {
if (f->udev->flags.usb_mode != USB_MODE_HOST) {
error = EINVAL;
break;
}
} else {
isread = ((usb_config[0].endpoint &
(UE_DIR_IN | UE_DIR_OUT)) == UE_DIR_IN);
if (f->udev->flags.usb_mode != USB_MODE_HOST) {
isread = !isread;
}
/* check permissions */
if (isread) {
if (!(fflags & FREAD)) {
error = EPERM;
break;
}
} else {
if (!(fflags & FWRITE)) {
error = EPERM;
break;
}
}
}
error = usbd_transfer_setup(f->udev, &iface_index,
f->fs_xfer + u.popen->ep_index, usb_config, 1,
f, f->priv_mtx);
if (error == 0) {
/* update maximums */
u.popen->max_packet_length =
f->fs_xfer[u.popen->ep_index]->max_frame_size;
u.popen->max_bufsize =
f->fs_xfer[u.popen->ep_index]->max_data_length;
f->fs_xfer[u.popen->ep_index]->priv_fifo =
((uint8_t *)0) + u.popen->ep_index;
} else {
error = ENOMEM;
}
break;
case USB_FS_CLOSE:
if (u.pclose->ep_index >= f->fs_ep_max) {
error = EINVAL;
break;
}
if (f->fs_xfer[u.pclose->ep_index] == NULL) {
error = EINVAL;
break;
}
usbd_transfer_unsetup(f->fs_xfer + u.pclose->ep_index, 1);
break;
case USB_FS_CLEAR_STALL_SYNC:
if (u.pstall->ep_index >= f->fs_ep_max) {
error = EINVAL;
break;
}
if (f->fs_xfer[u.pstall->ep_index] == NULL) {
error = EINVAL;
break;
}
if (f->udev->flags.usb_mode != USB_MODE_HOST) {
error = EINVAL;
break;
}
mtx_lock(f->priv_mtx);
error = usbd_transfer_pending(f->fs_xfer[u.pstall->ep_index]);
mtx_unlock(f->priv_mtx);
if (error) {
return (EBUSY);
}
ep = f->fs_xfer[u.pstall->ep_index]->endpoint;
/* setup a clear-stall packet */
req.bmRequestType = UT_WRITE_ENDPOINT;
req.bRequest = UR_CLEAR_FEATURE;
USETW(req.wValue, UF_ENDPOINT_HALT);
req.wIndex[0] = ep->edesc->bEndpointAddress;
req.wIndex[1] = 0;
USETW(req.wLength, 0);
error = usbd_do_request(f->udev, NULL, &req, NULL);
if (error == 0) {
usbd_clear_data_toggle(f->udev, ep);
} else {
error = ENXIO;
}
break;
default:
error = ENOIOCTL;
break;
}
DPRINTFN(6, "error=%d\n", error);
return (error);
}
/*------------------------------------------------------------------------*
* usbd_do_request_flags and usbd_do_request
*
* Description of arguments passed to these functions:
*
* "udev" - this is the "usb_device" structure pointer on which the
* request should be performed. It is possible to call this function
* in both Host Side mode and Device Side mode.
*
* "mtx" - if this argument is non-NULL the mutex pointed to by it
* will get dropped and picked up during the execution of this
* function, hence this function sometimes needs to sleep. If this
* argument is NULL it has no effect.
*
* "req" - this argument must always be non-NULL and points to an
* 8-byte structure holding the USB request to be done. The USB
* request structure has a bit telling the direction of the USB
* request, if it is a read or a write.
*
* "data" - if the "wLength" part of the structure pointed to by "req"
* is non-zero this argument must point to a valid kernel buffer which
* can hold at least "wLength" bytes. If "wLength" is zero "data" can
* be NULL.
*
* "flags" - here is a list of valid flags:
*
* o USB_SHORT_XFER_OK: allows the data transfer to be shorter than
* specified
*
* o USB_DELAY_STATUS_STAGE: allows the status stage to be performed
* at a later point in time. This is tunable by the "hw.usb.ss_delay"
* sysctl. This flag is mostly useful for debugging.
*
* o USB_USER_DATA_PTR: treat the "data" pointer like a userland
* pointer.
*
* "actlen" - if non-NULL the actual transfer length will be stored in
* the 16-bit unsigned integer pointed to by "actlen". This
* information is mostly useful when the "USB_SHORT_XFER_OK" flag is
* used.
*
* "timeout" - gives the timeout for the control transfer in
* milliseconds. A "timeout" value less than 50 milliseconds is
* treated like a 50 millisecond timeout. A "timeout" value greater
* than 30 seconds is treated like a 30 second timeout. This USB stack
* does not allow control requests without a timeout.
*
* NOTE: This function is thread safe. All calls to
* "usbd_do_request_flags" will be serialised by the use of an
* internal "sx_lock".
*
* Returns:
* 0: Success
* Else: Failure
*------------------------------------------------------------------------*/
usb_error_t
usbd_do_request_flags(struct usb_device *udev, struct mtx *mtx,
struct usb_device_request *req, void *data, uint16_t flags,
uint16_t *actlen, usb_timeout_t timeout)
{
usb_handle_req_t *hr_func;
struct usb_xfer *xfer;
const void *desc;
int err = 0;
usb_ticks_t start_ticks;
usb_ticks_t delta_ticks;
usb_ticks_t max_ticks;
uint16_t length;
uint16_t temp;
if (timeout < 50) {
/* timeout is too small */
timeout = 50;
}
if (timeout > 30000) {
/* timeout is too big */
timeout = 30000;
}
length = UGETW(req->wLength);
DPRINTFN(5, "udev=%p bmRequestType=0x%02x bRequest=0x%02x "
"wValue=0x%02x%02x wIndex=0x%02x%02x wLength=0x%02x%02x\n",
udev, req->bmRequestType, req->bRequest,
req->wValue[1], req->wValue[0],
req->wIndex[1], req->wIndex[0],
req->wLength[1], req->wLength[0]);
/* Check if the device is still alive */
if (udev->state < USB_STATE_POWERED) {
DPRINTF("usb device has gone\n");
return (USB_ERR_NOT_CONFIGURED);
}
/*
* Set "actlen" to a known value in case the caller does not
* check the return value:
*/
if (actlen)
*actlen = 0;
#if (USB_HAVE_USER_IO == 0)
if (flags & USB_USER_DATA_PTR)
return (USB_ERR_INVAL);
#endif
if (mtx) {
mtx_unlock(mtx);
if (mtx != &Giant) {
mtx_assert(mtx, MA_NOTOWNED);
}
}
/*
* Grab the default sx-lock so that serialisation
* is achieved when multiple threads are involved:
*/
sx_xlock(udev->default_sx);
hr_func = usbd_get_hr_func(udev);
if (hr_func != NULL) {
DPRINTF("Handle Request function is set\n");
desc = NULL;
temp = 0;
if (!(req->bmRequestType & UT_READ)) {
if (length != 0) {
DPRINTFN(1, "The handle request function "
"does not support writing data!\n");
err = USB_ERR_INVAL;
goto done;
}
}
/* The root HUB code needs the BUS lock locked */
USB_BUS_LOCK(udev->bus);
err = (hr_func) (udev, req, &desc, &temp);
USB_BUS_UNLOCK(udev->bus);
if (err)
goto done;
if (length > temp) {
if (!(flags & USB_SHORT_XFER_OK)) {
err = USB_ERR_SHORT_XFER;
goto done;
}
length = temp;
}
if (actlen)
*actlen = length;
if (length > 0) {
#if USB_HAVE_USER_IO
if (flags & USB_USER_DATA_PTR) {
if (copyout(desc, data, length)) {
err = USB_ERR_INVAL;
goto done;
}
} else
#endif
bcopy(desc, data, length);
}
goto done; /* success */
}
/*
* Setup a new USB transfer or use the existing one, if any:
*/
usbd_default_transfer_setup(udev);
xfer = udev->default_xfer[0];
if (xfer == NULL) {
/* most likely out of memory */
err = USB_ERR_NOMEM;
goto done;
}
USB_XFER_LOCK(xfer);
if (flags & USB_DELAY_STATUS_STAGE)
xfer->flags.manual_status = 1;
else
xfer->flags.manual_status = 0;
if (flags & USB_SHORT_XFER_OK)
xfer->flags.short_xfer_ok = 1;
else
xfer->flags.short_xfer_ok = 0;
xfer->timeout = timeout;
start_ticks = ticks;
max_ticks = USB_MS_TO_TICKS(timeout);
usbd_copy_in(xfer->frbuffers, 0, req, sizeof(*req));
usbd_xfer_set_frame_len(xfer, 0, sizeof(*req));
xfer->nframes = 2;
while (1) {
temp = length;
if (temp > xfer->max_data_length) {
temp = usbd_xfer_max_len(xfer);
}
usbd_xfer_set_frame_len(xfer, 1, temp);
if (temp > 0) {
if (!(req->bmRequestType & UT_READ)) {
#if USB_HAVE_USER_IO
if (flags & USB_USER_DATA_PTR) {
USB_XFER_UNLOCK(xfer);
err = usbd_copy_in_user(xfer->frbuffers + 1,
0, data, temp);
USB_XFER_LOCK(xfer);
if (err) {
err = USB_ERR_INVAL;
break;
}
} else
#endif
usbd_copy_in(xfer->frbuffers + 1,
0, data, temp);
}
xfer->nframes = 2;
} else {
if (xfer->frlengths[0] == 0) {
if (xfer->flags.manual_status) {
#if USB_DEBUG
int temp;
temp = usb_ss_delay;
if (temp > 5000) {
temp = 5000;
}
if (temp > 0) {
usb_pause_mtx(
xfer->xroot->xfer_mtx,
USB_MS_TO_TICKS(temp));
}
#endif
xfer->flags.manual_status = 0;
} else {
break;
}
}
xfer->nframes = 1;
}
usbd_transfer_start(xfer);
while (usbd_transfer_pending(xfer)) {
cv_wait(udev->default_cv,
xfer->xroot->xfer_mtx);
}
err = xfer->error;
if (err) {
break;
}
/* subtract length of SETUP packet, if any */
if (xfer->aframes > 0) {
xfer->actlen -= xfer->frlengths[0];
} else {
xfer->actlen = 0;
}
/* check for short packet */
if (temp > xfer->actlen) {
temp = xfer->actlen;
length = temp;
}
if (temp > 0) {
if (req->bmRequestType & UT_READ) {
#if USB_HAVE_USER_IO
if (flags & USB_USER_DATA_PTR) {
USB_XFER_UNLOCK(xfer);
err = usbd_copy_out_user(xfer->frbuffers + 1,
0, data, temp);
USB_XFER_LOCK(xfer);
if (err) {
err = USB_ERR_INVAL;
break;
}
} else
#endif
usbd_copy_out(xfer->frbuffers + 1,
0, data, temp);
}
}
/*
* Clear "frlengths[0]" so that we don't send the setup
* packet again:
*/
usbd_xfer_set_frame_len(xfer, 0, 0);
/* update length and data pointer */
length -= temp;
data = USB_ADD_BYTES(data, temp);
if (actlen) {
(*actlen) += temp;
}
/* check for timeout */
delta_ticks = ticks - start_ticks;
if (delta_ticks > max_ticks) {
if (!err) {
err = USB_ERR_TIMEOUT;
}
}
if (err) {
break;
}
}
if (err) {
/*
* Make sure that the control endpoint is no longer
* blocked in case of a non-transfer related error:
*/
usbd_transfer_stop(xfer);
}
USB_XFER_UNLOCK(xfer);
done:
sx_xunlock(udev->default_sx);
if (mtx) {
mtx_lock(mtx);
}
return ((usb_error_t)err);
}