static void
g_modem_timeout_reset(struct g_modem_softc *sc)
{
int i = g_modem_pattern_interval;
sc->sc_tx_interval = i;
if (i <= 0)
i = 1;
else if (i > 1023)
i = 1023;
i = USB_MS_TO_TICKS(i);
usb_callout_reset(&sc->sc_callout, i, &g_modem_timeout, sc);
}
static int
usie_do_request(struct usie_softc *sc, struct usb_device_request *req,
void *data)
{
int err = 0;
int ntries;
mtx_assert(&sc->sc_mtx, MA_OWNED);
for (ntries = 0; ntries != 10; ntries++) {
err = usbd_do_request(sc->sc_udev,
&sc->sc_mtx, req, data);
if (err == 0)
break;
DPRINTF("Control request failed: %s %d/10\n",
usbd_errstr(err), ntries);
usb_pause_mtx(&sc->sc_mtx, USB_MS_TO_TICKS(10));
}
return (err);
}
/*------------------------------------------------------------------------*
* usbd_req_reset_port
*
* This function will instruct an USB HUB to perform a reset sequence
* on the specified port number.
*
* Returns:
* 0: Success. The USB device should now be at address zero.
* Else: Failure. No USB device is present and the USB port should be
* disabled.
*------------------------------------------------------------------------*/
usb_error_t
usbd_req_reset_port(struct usb_device *udev, struct mtx *mtx, uint8_t port)
{
struct usb_port_status ps;
usb_error_t err;
uint16_t n;
#if USB_DEBUG
uint16_t pr_poll_delay;
uint16_t pr_recovery_delay;
#endif
err = usbd_req_set_port_feature(udev, mtx, port, UHF_PORT_RESET);
if (err) {
goto done;
}
#if USB_DEBUG
/* range check input parameters */
pr_poll_delay = usb_pr_poll_delay;
if (pr_poll_delay < 1) {
pr_poll_delay = 1;
} else if (pr_poll_delay > 1000) {
pr_poll_delay = 1000;
}
pr_recovery_delay = usb_pr_recovery_delay;
if (pr_recovery_delay > 1000) {
pr_recovery_delay = 1000;
}
#endif
n = 0;
while (1) {
#if USB_DEBUG
/* wait for the device to recover from reset */
usb_pause_mtx(mtx, USB_MS_TO_TICKS(pr_poll_delay));
n += pr_poll_delay;
#else
/* wait for the device to recover from reset */
usb_pause_mtx(mtx, USB_MS_TO_TICKS(USB_PORT_RESET_DELAY));
n += USB_PORT_RESET_DELAY;
#endif
err = usbd_req_get_port_status(udev, mtx, &ps, port);
if (err) {
goto done;
}
/* if the device disappeared, just give up */
if (!(UGETW(ps.wPortStatus) & UPS_CURRENT_CONNECT_STATUS)) {
goto done;
}
/* check if reset is complete */
if (UGETW(ps.wPortChange) & UPS_C_PORT_RESET) {
break;
}
/* check for timeout */
if (n > 1000) {
n = 0;
break;
}
}
/* clear port reset first */
err = usbd_req_clear_port_feature(
udev, mtx, port, UHF_C_PORT_RESET);
if (err) {
goto done;
}
/* check for timeout */
if (n == 0) {
err = USB_ERR_TIMEOUT;
goto done;
}
#if USB_DEBUG
/* wait for the device to recover from reset */
usb_pause_mtx(mtx, USB_MS_TO_TICKS(pr_recovery_delay));
#else
/* wait for the device to recover from reset */
usb_pause_mtx(mtx, USB_MS_TO_TICKS(USB_PORT_RESET_RECOVERY));
#endif
done:
DPRINTFN(2, "port %d reset returning error=%s\n",
port, usbd_errstr(err));
return (err);
}
static void
usie_if_status_cb(void *arg, int pending)
{
struct usie_softc *sc = arg;
struct ifnet *ifp = sc->sc_ifp;
struct usb_device_request req;
struct usie_hip *hip;
struct usie_lsi *lsi;
uint16_t actlen;
uint8_t ntries;
uint8_t pad;
mtx_lock(&sc->sc_mtx);
req.bmRequestType = UT_READ_CLASS_INTERFACE;
req.bRequest = UCDC_GET_ENCAPSULATED_RESPONSE;
USETW(req.wValue, 0);
USETW(req.wIndex, sc->sc_if_ifnum);
USETW(req.wLength, sizeof(sc->sc_status_temp));
for (ntries = 0; ntries != 10; ntries++) {
int err;
err = usbd_do_request_flags(sc->sc_udev,
&sc->sc_mtx, &req, sc->sc_status_temp, USB_SHORT_XFER_OK,
&actlen, USB_DEFAULT_TIMEOUT);
if (err == 0)
break;
DPRINTF("Control request failed: %s %d/10\n",
usbd_errstr(err), ntries);
usb_pause_mtx(&sc->sc_mtx, USB_MS_TO_TICKS(10));
}
if (ntries == 10) {
mtx_unlock(&sc->sc_mtx);
DPRINTF("Timeout\n");
return;
}
hip = (struct usie_hip *)sc->sc_status_temp;
pad = (hip->id & USIE_HIP_PAD) ? 1 : 0;
DPRINTF("hip.id=%x hip.len=%d actlen=%u pad=%d\n",
hip->id, be16toh(hip->len), actlen, pad);
switch (hip->id & USIE_HIP_MASK) {
case USIE_HIP_SYNC2H:
usie_if_cmd(sc, USIE_HIP_SYNC2M);
break;
case USIE_HIP_RESTR:
usb_callout_stop(&sc->sc_if_sync_ch);
break;
case USIE_HIP_UMTS:
lsi = (struct usie_lsi *)(
sc->sc_status_temp + sizeof(struct usie_hip) + pad);
DPRINTF("lsi.proto=%x lsi.len=%d\n", lsi->proto,
be16toh(lsi->len));
if (lsi->proto != USIE_LSI_UMTS)
break;
if (lsi->area == USIE_LSI_AREA_NO ||
lsi->area == USIE_LSI_AREA_NODATA) {
device_printf(sc->sc_dev, "no service available\n");
break;
}
if (lsi->state == USIE_LSI_STATE_IDLE) {
DPRINTF("lsi.state=%x\n", lsi->state);
break;
}
DPRINTF("ctx=%x\n", hip->param);
sc->sc_txd.hip.param = hip->param;
sc->sc_net.addr_len = lsi->pdp_addr_len;
memcpy(&sc->sc_net.dns1_addr, &lsi->dns1_addr, 16);
memcpy(&sc->sc_net.dns2_addr, &lsi->dns2_addr, 16);
memcpy(sc->sc_net.pdp_addr, lsi->pdp_addr, 16);
memcpy(sc->sc_net.gw_addr, lsi->gw_addr, 16);
ifp->if_flags |= IFF_UP;
ifp->if_drv_flags |= IFF_DRV_RUNNING;
device_printf(sc->sc_dev, "IP Addr=%d.%d.%d.%d\n",
*lsi->pdp_addr, *(lsi->pdp_addr + 1),
*(lsi->pdp_addr + 2), *(lsi->pdp_addr + 3));
device_printf(sc->sc_dev, "Gateway Addr=%d.%d.%d.%d\n",
*lsi->gw_addr, *(lsi->gw_addr + 1),
*(lsi->gw_addr + 2), *(lsi->gw_addr + 3));
device_printf(sc->sc_dev, "Prim NS Addr=%d.%d.%d.%d\n",
*lsi->dns1_addr, *(lsi->dns1_addr + 1),
*(lsi->dns1_addr + 2), *(lsi->dns1_addr + 3));
device_printf(sc->sc_dev, "Scnd NS Addr=%d.%d.%d.%d\n",
*lsi->dns2_addr, *(lsi->dns2_addr + 1),
*(lsi->dns2_addr + 2), *(lsi->dns2_addr + 3));
usie_cns_req(sc, USIE_CNS_ID_RSSI, USIE_CNS_OB_RSSI);
break;
case USIE_HIP_RCGI:
/* ignore, workaround for sloppy windows */
break;
default:
DPRINTF("undefined msgid: %x\n", hip->id);
break;
}
mtx_unlock(&sc->sc_mtx);
}
/*------------------------------------------------------------------------*
* 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);
}
