*
* Returns a zero-based port number, which is suitable for indexing into each of
* the split roothubs' port arrays and bus state arrays.
+ * Add one to it in order to call xhci_find_slot_id_by_port.
*/
static unsigned int find_faked_portnum_from_hw_portnum(struct usb_hcd *hcd,
struct xhci_hcd *xhci, u32 port_id)
return num_similar_speed_ports;
}
+static void handle_device_notification(struct xhci_hcd *xhci,
+ union xhci_trb *event)
+{
+ u32 slot_id;
+
+ slot_id = TRB_TO_SLOT_ID(event->generic.field[3]);
+ if (!xhci->devs[slot_id])
+ xhci_warn(xhci, "Device Notification event for "
+ "unused slot %u\n", slot_id);
+ else
+ xhci_dbg(xhci, "Device Notification event for slot ID %u\n",
+ slot_id);
+ /* XXX should we kick khubd for the parent hub? It should have send an
+ * interrupt transfer when the port started signaling resume, so there's
+ * probably no need to do so.
+ */
+}
+
static void handle_port_status(struct xhci_hcd *xhci,
union xhci_trb *event)
{
}
if (DEV_SUPERSPEED(temp)) {
- xhci_dbg(xhci, "resume SS port %d\n", port_id);
+ xhci_dbg(xhci, "remote wake SS port %d\n", port_id);
+ xhci_test_and_clear_bit(xhci, port_array,
+ faked_port_index, PORT_PLC);
xhci_set_link_state(xhci, port_array, faked_port_index,
XDEV_U0);
- slot_id = xhci_find_slot_id_by_port(hcd, xhci,
- faked_port_index);
- if (!slot_id) {
- xhci_dbg(xhci, "slot_id is zero\n");
- goto cleanup;
- }
- xhci_ring_device(xhci, slot_id);
- xhci_dbg(xhci, "resume SS port %d finished\n", port_id);
- /* Clear PORT_PLC */
- xhci_test_and_clear_bit(xhci, port_array,
- faked_port_index, PORT_PLC);
+ /* Need to wait until the next link state change
+ * indicates the device is actually in U0.
+ */
+ bogus_port_status = true;
+ goto cleanup;
} else {
xhci_dbg(xhci, "resume HS port %d\n", port_id);
bus_state->resume_done[faked_port_index] = jiffies +
}
}
+ if ((temp & PORT_PLC) && (temp & PORT_PLS_MASK) == XDEV_U0 &&
+ DEV_SUPERSPEED(temp)) {
+ xhci_dbg(xhci, "resume SS port %d finished\n", port_id);
+ slot_id = xhci_find_slot_id_by_port(hcd, xhci,
+ faked_port_index + 1);
+ if (slot_id && xhci->devs[slot_id])
+ xhci_ring_device(xhci, slot_id);
+ }
+
if (hcd->speed != HCD_USB3)
xhci_test_and_clear_bit(xhci, port_array, faked_port_index,
PORT_PLC);
else
update_ptrs = 0;
break;
+ case TRB_TYPE(TRB_DEV_NOTE):
+ handle_device_notification(xhci, event);
+ break;
default:
if ((le32_to_cpu(event->event_cmd.flags) & TRB_TYPE_BITMASK) >=
TRB_TYPE(48))
/* Check TD length */
if (running_total != td_len) {
xhci_err(xhci, "ISOC TD length unmatch\n");
- return -EINVAL;
+ ret = -EINVAL;
+ goto cleanup;
}
}