/*
****************************************************************
* Função de "detach" *
****************************************************************
*/
int
uhub_detach (struct device *dev)
{
struct uhub_softc *sc = dev->softc;
struct usbd_hub *hub;
struct usbd_port *rup;
int port, nports;
if ((hub = sc->sc_hub->hub) == NULL)
return (0);
usbd_abort_pipe (sc->sc_ipipe);
usbd_close_pipe (sc->sc_ipipe);
nports = hub->hubdesc.bNbrPorts;
for (port = 0; port < nports; port++)
{
rup = &hub->ports[port];
if (rup->device)
usb_disconnect_port (rup, dev);
}
free_byte (hub); sc->sc_hub->hub = NULL;
return (0);
} /* end uhub_detach */
/*
* Called from process context when the hub is gone.
* Detach all devices on active ports.
*/
int
uhub_detach(struct device *self, int flags)
{
struct uhub_softc *sc = (struct uhub_softc *)self;
struct usbd_hub *hub = sc->sc_hub->hub;
struct usbd_port *rup;
int port, nports;
DPRINTF(("uhub_detach: sc=%p flags=%d\n", sc, flags));
if (hub == NULL) /* Must be partially working */
return (0);
usbd_abort_pipe(sc->sc_ipipe);
usbd_close_pipe(sc->sc_ipipe);
nports = hub->hubdesc.bNbrPorts;
for(port = 0; port < nports; port++) {
rup = &hub->ports[port];
if (rup->device)
usb_disconnect_port(rup, self);
}
usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->sc_hub,
&sc->sc_dev);
if (hub->ports[0].tt)
free(hub->ports[0].tt, M_USBDEV);
free(hub, M_USBDEV);
sc->sc_hub->hub = NULL;
return (0);
}
/*
* Called from process context when the hub is gone.
* Detach all devices on active ports.
*/
static int
uhub_detach(device_t self)
{
struct uhub_softc *sc = device_get_softc(self);
struct usbd_hub *hub = sc->sc_hub->hub;
struct usbd_port *rup;
int port, nports;
DPRINTF(("uhub_detach: sc=%port\n", sc));
crit_enter();
if (hub == NULL) { /* Must be partially working */
crit_exit();
return (0);
}
usbd_abort_pipe(sc->sc_ipipe);
usbd_close_pipe(sc->sc_ipipe);
nports = hub->hubdesc.bNbrPorts;
for(port = 0; port < nports; port++) {
rup = &hub->ports[port];
if (rup->device)
usb_disconnect_port(rup, self);
}
usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->sc_hub, self);
if (hub->ports[0].tt)
kfree(hub->ports[0].tt, M_USBDEV);
kfree(hub, M_USBDEV);
sc->sc_hub->hub = NULL;
crit_exit();
return (0);
}
usbd_status
uhub_explore(usbd_device_handle dev)
{
usb_hub_descriptor_t *hd = &dev->hub->hubdesc;
device_t self = dev->hub->hubdev;
struct uhub_softc *sc = device_get_softc(self);
struct usbd_port *up;
usbd_status err;
int speed;
int port;
int change, status;
DPRINTFN(10, ("uhub_explore dev=%p addr=%d\n", dev, dev->address));
if (!sc->sc_running)
return (USBD_NOT_STARTED);
/* Ignore hubs that are too deep. */
if (dev->depth > USB_HUB_MAX_DEPTH)
return (USBD_TOO_DEEP);
for(port = 1; port <= hd->bNbrPorts; port++) {
up = &dev->hub->ports[port-1];
err = usbd_get_port_status(dev, port, &up->status);
if (err) {
DPRINTF(("uhub_explore: get port status failed, "
"error=%s\n", usbd_errstr(err)));
continue;
}
status = UGETW(up->status.wPortStatus);
change = UGETW(up->status.wPortChange);
DPRINTFN(3,("uhub_explore: %s port %d status 0x%04x 0x%04x\n",
device_get_nameunit(self), port, status, change));
if (change & UPS_C_PORT_ENABLED) {
DPRINTF(("uhub_explore: C_PORT_ENABLED 0x%x\n", change));
usbd_clear_port_feature(dev, port, UHF_C_PORT_ENABLE);
if (change & UPS_C_CONNECT_STATUS) {
/* Ignore the port error if the device
vanished. */
} else if (status & UPS_PORT_ENABLED) {
device_printf(self,
"illegal enable change, port %d\n", port);
} else {
/* Port error condition. */
if (up->restartcnt) /* no message first time */
device_printf(self,
"port error, restarting "
"port %d\n", port);
if (up->restartcnt++ < USBD_RESTART_MAX)
goto disco;
else
device_printf(self,
"port error, giving up "
"port %d\n", port);
}
}
if (!(change & UPS_C_CONNECT_STATUS)) {
DPRINTFN(3,("uhub_explore: port=%d !C_CONNECT_"
"STATUS\n", port));
/* No status change, just do recursive explore. */
if (up->device != NULL && up->device->hub != NULL)
up->device->hub->explore(up->device);
#if 0 && defined(DIAGNOSTIC)
if (up->device == NULL &&
(status & UPS_CURRENT_CONNECT_STATUS))
device_printf(self,
"connected, no device\n");
#endif
continue;
}
/* We have a connect status change, handle it. */
DPRINTF(("uhub_explore: status change hub=%d port=%d\n",
dev->address, port));
usbd_clear_port_feature(dev, port, UHF_C_PORT_CONNECTION);
/*usbd_clear_port_feature(dev, port, UHF_C_PORT_ENABLE);*/
/*
* If there is already a device on the port the change status
* must mean that is has disconnected. Looking at the
* current connect status is not enough to figure this out
* since a new unit may have been connected before we handle
* the disconnect.
*/
disco:
if (up->device != NULL) {
/* Disconnected */
DPRINTF(("uhub_explore: device addr=%d disappeared "
"on port %d\n", up->device->address, port));
usb_disconnect_port(up, self);
usbd_clear_port_feature(dev, port,
UHF_C_PORT_CONNECTION);
}
if (!(status & UPS_CURRENT_CONNECT_STATUS)) {
/* Nothing connected, just ignore it. */
DPRINTFN(3,("uhub_explore: port=%d !CURRENT_CONNECT"
"_STATUS\n", port));
continue;
}
/* Connected */
if (!(status & UPS_PORT_POWER))
device_printf(self,
"strange, connected port %d has no power\n",
port);
/* Wait for maximum device power up time. */
usbd_delay_ms(dev, USB_PORT_POWERUP_DELAY);
/* Reset port, which implies enabling it. */
if (usbd_reset_port(dev, port, &up->status)) {
device_printf(self,
"port %d reset failed\n", port);
continue;
}
/* Get port status again, it might have changed during reset */
err = usbd_get_port_status(dev, port, &up->status);
if (err) {
DPRINTF(("uhub_explore: get port status failed, "
"error=%s\n", usbd_errstr(err)));
continue;
}
status = UGETW(up->status.wPortStatus);
change = UGETW(up->status.wPortChange);
if (!(status & UPS_CURRENT_CONNECT_STATUS)) {
/* Nothing connected, just ignore it. */
#ifdef DIAGNOSTIC
device_printf(self,
"port %d, device disappeared after reset\n",
port);
#endif
continue;
}
#if 0
if (UHUB_IS_HIGH_SPEED(sc) && !(status & UPS_HIGH_SPEED)) {
device_printf(self,
"port %d, transaction translation not "
"implemented, low/full speed device ignored\n",
port);
continue;
}
#endif
/* Figure out device speed */
if (status & UPS_HIGH_SPEED)
speed = USB_SPEED_HIGH;
else if (status & UPS_LOW_SPEED)
speed = USB_SPEED_LOW;
else
speed = USB_SPEED_FULL;
/* Get device info and set its address. */
err = usbd_new_device(self, dev->bus,
dev->depth + 1, speed, port, up);
/* XXX retry a few times? */
if (err) {
DPRINTFN(-1,("uhub_explore: usb_new_device failed, "
"error=%s\n", usbd_errstr(err)));
/* Avoid addressing problems by disabling. */
/* usbd_reset_port(dev, port, &up->status); */
/*
* The unit refused to accept a new address, or had
* some other serious problem. Since we cannot leave
* at 0 we have to disable the port instead.
*/
device_printf(self,
"device problem (%s), disabling port %d\n",
usbd_errstr(err), port);
usbd_clear_port_feature(dev, port, UHF_PORT_ENABLE);
} else {
/* The port set up succeeded, reset error count. */
up->restartcnt = 0;
if (up->device->hub)
up->device->hub->explore(up->device);
}
}
return (USBD_NORMAL_COMPLETION);
}
