/*------------------------------------------------------------------------*
* usb_attach_sub
*
* This function creates a thread which runs the USB attach code.
*------------------------------------------------------------------------*/
static void
usb_attach_sub(device_t dev, struct usb_bus *bus)
{
const char *pname = device_get_nameunit(dev);
mtx_lock(&Giant);
if (usb_devclass_ptr == NULL)
usb_devclass_ptr = devclass_find("usbus");
mtx_unlock(&Giant);
#if USB_HAVE_PF
usbpf_attach(bus);
#endif
/* Initialise USB process messages */
bus->explore_msg[0].hdr.pm_callback = &usb_bus_explore;
bus->explore_msg[0].bus = bus;
bus->explore_msg[1].hdr.pm_callback = &usb_bus_explore;
bus->explore_msg[1].bus = bus;
bus->detach_msg[0].hdr.pm_callback = &usb_bus_detach;
bus->detach_msg[0].bus = bus;
bus->detach_msg[1].hdr.pm_callback = &usb_bus_detach;
bus->detach_msg[1].bus = bus;
bus->attach_msg[0].hdr.pm_callback = &usb_bus_attach;
bus->attach_msg[0].bus = bus;
bus->attach_msg[1].hdr.pm_callback = &usb_bus_attach;
bus->attach_msg[1].bus = bus;
/* Create USB explore and callback processes */
if (usb_proc_create(&bus->giant_callback_proc,
&bus->bus_mtx, pname, USB_PRI_MED)) {
device_printf(dev, "WARNING: Creation of USB Giant "
"callback process failed.\n");
} else if (usb_proc_create(&bus->non_giant_callback_proc,
&bus->bus_mtx, pname, USB_PRI_HIGH)) {
device_printf(dev, "WARNING: Creation of USB non-Giant "
"callback process failed.\n");
} else if (usb_proc_create(&bus->explore_proc,
&bus->bus_mtx, pname, USB_PRI_MED)) {
device_printf(dev, "WARNING: Creation of USB explore "
"process failed.\n");
} else if (usb_proc_create(&bus->control_xfer_proc,
&bus->bus_mtx, pname, USB_PRI_MED)) {
device_printf(dev, "WARNING: Creation of USB control transfer "
"process failed.\n");
} else {
/* Get final attach going */
USB_BUS_LOCK(bus);
if (usb_proc_msignal(&bus->explore_proc,
&bus->attach_msg[0], &bus->attach_msg[1])) {
/* ignore */
}
USB_BUS_UNLOCK(bus);
/* Do initial explore */
usb_needs_explore(bus, 1);
}
}
int
uether_ifattach(struct usb_ether *ue)
{
int error;
/* check some critical parameters */
if ((ue->ue_dev == NULL) ||
(ue->ue_udev == NULL) ||
(ue->ue_mtx == NULL) ||
(ue->ue_methods == NULL))
return (EINVAL);
error = usb_proc_create(&ue->ue_tq, ue->ue_mtx,
device_get_nameunit(ue->ue_dev), USB_PRI_MED);
if (error) {
device_printf(ue->ue_dev, "could not setup taskqueue\n");
goto error;
}
/* fork rest of the attach code */
UE_LOCK(ue);
ue_queue_command(ue, ue_attach_post_task,
&ue->ue_sync_task[0].hdr,
&ue->ue_sync_task[1].hdr);
UE_UNLOCK(ue);
error:
return (error);
}
/*
* "N" sub_units are setup at a time. All sub-units will
* be given sequential unit numbers. The number of
* sub-units can be used to differentiate among
* different types of devices.
*
* The mutex pointed to by "mtx" is applied before all
* callbacks are called back. Also "mtx" must be applied
* before calling into the ucom-layer!
*/
int
ucom_attach(struct ucom_super_softc *ssc, struct ucom_softc *sc,
uint32_t sub_units, void *parent,
const struct ucom_callback *callback, struct mtx *mtx)
{
uint32_t n;
uint32_t root_unit;
int error = 0;
if ((sc == NULL) ||
(sub_units == 0) ||
(sub_units > UCOM_SUB_UNIT_MAX) ||
(callback == NULL)) {
return (EINVAL);
}
/* XXX unit management does not really belong here */
if (ucom_units_alloc(sub_units, &root_unit)) {
return (ENOMEM);
}
error = usb_proc_create(&ssc->sc_tq, mtx, "ucom", USB_PRI_MED);
if (error) {
ucom_units_free(root_unit, sub_units);
return (error);
}
for (n = 0; n != sub_units; n++, sc++) {
sc->sc_unit = root_unit + n;
sc->sc_local_unit = n;
sc->sc_super = ssc;
sc->sc_mtx = mtx;
sc->sc_parent = parent;
sc->sc_callback = callback;
error = ucom_attach_tty(sc, sub_units);
if (error) {
ucom_detach(ssc, sc - n, n);
ucom_units_free(root_unit + n, sub_units - n);
return (error);
}
sc->sc_flag |= UCOM_FLAG_ATTACHED;
}
return (0);
}
/*
* Setup a group of one or more serial ports.
*
* The mutex pointed to by "mtx" is applied before all
* callbacks are called back. Also "mtx" must be applied
* before calling into the ucom-layer!
*/
int
ucom_attach(struct ucom_super_softc *ssc, struct ucom_softc *sc,
int subunits, void *parent,
const struct ucom_callback *callback, struct mtx *mtx)
{
int subunit;
int error = 0;
if ((sc == NULL) ||
(subunits <= 0) ||
(callback == NULL) ||
(mtx == NULL)) {
return (EINVAL);
}
/* allocate a uniq unit number */
ssc->sc_unit = ucom_unit_alloc();
if (ssc->sc_unit == -1)
return (ENOMEM);
/* generate TTY name string */
snprintf(ssc->sc_ttyname, sizeof(ssc->sc_ttyname),
UCOM_TTY_PREFIX "%d", ssc->sc_unit);
/* create USB request handling process */
error = usb_proc_create(&ssc->sc_tq, mtx, "ucom", USB_PRI_MED);
if (error) {
ucom_unit_free(ssc->sc_unit);
return (error);
}
ssc->sc_subunits = subunits;
ssc->sc_flag = UCOM_FLAG_ATTACHED |
UCOM_FLAG_FREE_UNIT;
if (callback->ucom_free == NULL)
ssc->sc_flag |= UCOM_FLAG_WAIT_REFS;
/* increment reference count */
ucom_ref(ssc);
for (subunit = 0; subunit < ssc->sc_subunits; subunit++) {
sc[subunit].sc_subunit = subunit;
sc[subunit].sc_super = ssc;
sc[subunit].sc_mtx = mtx;
sc[subunit].sc_parent = parent;
sc[subunit].sc_callback = callback;
error = ucom_attach_tty(ssc, &sc[subunit]);
if (error) {
ucom_detach(ssc, &sc[0]);
return (error);
}
/* increment reference count */
ucom_ref(ssc);
/* set subunit attached */
sc[subunit].sc_flag |= UCOM_FLAG_ATTACHED;
}
DPRINTF("tp = %p, unit = %d, subunits = %d\n",
sc->sc_tty, ssc->sc_unit, ssc->sc_subunits);
return (0);
}
/*------------------------------------------------------------------------*
* usb_attach_sub
*
* This function creates a thread which runs the USB attach code.
*------------------------------------------------------------------------*/
static void
usb_attach_sub(device_t dev, struct usb_bus *bus)
{
mtx_lock(&Giant);
if (usb_devclass_ptr == NULL)
usb_devclass_ptr = devclass_find("usbus");
mtx_unlock(&Giant);
#if USB_HAVE_PF
usbpf_attach(bus);
#endif
/* Initialise USB process messages */
bus->explore_msg[0].hdr.pm_callback = &usb_bus_explore;
bus->explore_msg[0].bus = bus;
bus->explore_msg[1].hdr.pm_callback = &usb_bus_explore;
bus->explore_msg[1].bus = bus;
bus->detach_msg[0].hdr.pm_callback = &usb_bus_detach;
bus->detach_msg[0].bus = bus;
bus->detach_msg[1].hdr.pm_callback = &usb_bus_detach;
bus->detach_msg[1].bus = bus;
bus->attach_msg[0].hdr.pm_callback = &usb_bus_attach;
bus->attach_msg[0].bus = bus;
bus->attach_msg[1].hdr.pm_callback = &usb_bus_attach;
bus->attach_msg[1].bus = bus;
bus->suspend_msg[0].hdr.pm_callback = &usb_bus_suspend;
bus->suspend_msg[0].bus = bus;
bus->suspend_msg[1].hdr.pm_callback = &usb_bus_suspend;
bus->suspend_msg[1].bus = bus;
bus->resume_msg[0].hdr.pm_callback = &usb_bus_resume;
bus->resume_msg[0].bus = bus;
bus->resume_msg[1].hdr.pm_callback = &usb_bus_resume;
bus->resume_msg[1].bus = bus;
bus->reset_msg[0].hdr.pm_callback = &usb_bus_reset;
bus->reset_msg[0].bus = bus;
bus->reset_msg[1].hdr.pm_callback = &usb_bus_reset;
bus->reset_msg[1].bus = bus;
bus->shutdown_msg[0].hdr.pm_callback = &usb_bus_shutdown;
bus->shutdown_msg[0].bus = bus;
bus->shutdown_msg[1].hdr.pm_callback = &usb_bus_shutdown;
bus->shutdown_msg[1].bus = bus;
#if USB_HAVE_PER_BUS_PROCESS
/* Create USB explore and callback processes */
if (usb_proc_create(USB_BUS_GIANT_PROC(bus),
&bus->bus_mtx, device_get_nameunit(dev), USB_PRI_MED)) {
device_printf(dev, "WARNING: Creation of USB Giant "
"callback process failed.\n");
} else if (usb_proc_create(USB_BUS_NON_GIANT_PROC(bus),
&bus->bus_mtx, device_get_nameunit(dev), USB_PRI_HIGH)) {
device_printf(dev, "WARNING: Creation of USB non-Giant "
"callback process failed.\n");
} else if (usb_proc_create(USB_BUS_EXPLORE_PROC(bus),
&bus->bus_mtx, device_get_nameunit(dev), USB_PRI_MED)) {
device_printf(dev, "WARNING: Creation of USB explore "
"process failed.\n");
} else if (usb_proc_create(USB_BUS_CONTROL_XFER_PROC(bus),
&bus->bus_mtx, device_get_nameunit(dev), USB_PRI_MED)) {
device_printf(dev, "WARNING: Creation of USB control transfer "
"process failed.\n");
} else
#endif
{
/* Get final attach going */
USB_BUS_LOCK(bus);
usb_proc_msignal(USB_BUS_EXPLORE_PROC(bus),
&bus->attach_msg[0], &bus->attach_msg[1]);
USB_BUS_UNLOCK(bus);
/* Do initial explore */
usb_needs_explore(bus, 1);
}
}
