next = ring->dequeue;
}
addr = (unsigned long long) xhci_trb_virt_to_dma(ring->deq_seg, ring->dequeue);
- if (ring == xhci->event_ring)
- xhci_dbg(xhci, "Event ring deq = 0x%llx (DMA)\n", addr);
- else if (ring == xhci->cmd_ring)
- xhci_dbg(xhci, "Command ring deq = 0x%llx (DMA)\n", addr);
- else
- xhci_dbg(xhci, "Ring deq = 0x%llx (DMA)\n", addr);
}
/*
next = ring->enqueue;
}
addr = (unsigned long long) xhci_trb_virt_to_dma(ring->enq_seg, ring->enqueue);
- if (ring == xhci->event_ring)
- xhci_dbg(xhci, "Event ring enq = 0x%llx (DMA)\n", addr);
- else if (ring == xhci->cmd_ring)
- xhci_dbg(xhci, "Command ring enq = 0x%llx (DMA)\n", addr);
- else
- xhci_dbg(xhci, "Ring enq = 0x%llx (DMA)\n", addr);
}
/*
}
}
usb_hcd_unlink_urb_from_ep(hcd, urb);
- xhci_dbg(xhci, "Giveback %s URB %p\n", adjective, urb);
spin_unlock(&xhci->lock);
usb_hcd_giveback_urb(hcd, urb, status);
xhci_urb_free_priv(xhci, urb_priv);
spin_lock(&xhci->lock);
- xhci_dbg(xhci, "%s URB given back\n", adjective);
}
}
if (list_empty(&ep->cancelled_td_list)) {
xhci_stop_watchdog_timer_in_irq(xhci, ep);
+ ep->stopped_td = NULL;
+ ep->stopped_trb = NULL;
ring_doorbell_for_active_rings(xhci, slot_id, ep_index);
return;
}
complete(&xhci->addr_dev);
break;
case TRB_TYPE(TRB_DISABLE_SLOT):
- if (xhci->devs[slot_id])
+ if (xhci->devs[slot_id]) {
+ if (xhci->quirks & XHCI_EP_LIMIT_QUIRK)
+ /* Delete default control endpoint resources */
+ xhci_free_device_endpoint_resources(xhci,
+ xhci->devs[slot_id], true);
xhci_free_virt_device(xhci, slot_id);
+ }
break;
case TRB_TYPE(TRB_CONFIG_EP):
virt_dev = xhci->devs[slot_id];
"without IOC set??\n");
*status = -ESHUTDOWN;
} else {
- xhci_dbg(xhci, "Successful control transfer!\n");
*status = 0;
}
break;
switch (trb_comp_code) {
case COMP_SUCCESS:
frame->status = 0;
- xhci_dbg(xhci, "Successful isoc transfer!\n");
break;
case COMP_SHORT_TX:
frame->status = td->urb->transfer_flags & URB_SHORT_NOT_OK ?
frame->status = -EOVERFLOW;
skip_td = true;
break;
+ case COMP_DEV_ERR:
case COMP_STALL:
frame->status = -EPROTO;
skip_td = true;
}
}
- if ((idx == urb_priv->length - 1) && *status == -EINPROGRESS)
- *status = 0;
-
return finish_td(xhci, td, event_trb, event, ep, status, false);
}
struct usb_iso_packet_descriptor *frame;
int idx;
- ep_ring = xhci_dma_to_transfer_ring(ep, event->buffer);
+ ep_ring = xhci_dma_to_transfer_ring(ep, le64_to_cpu(event->buffer));
urb_priv = td->urb->hcpriv;
idx = urb_priv->td_cnt;
frame = &td->urb->iso_frame_desc[idx];
- /* The transfer is partly done */
- *status = -EXDEV;
+ /* The transfer is partly done. */
frame->status = -EXDEV;
/* calc actual length */
else
*status = 0;
} else {
- if (usb_endpoint_xfer_bulk(&td->urb->ep->desc))
- xhci_dbg(xhci, "Successful bulk "
- "transfer!\n");
- else
- xhci_dbg(xhci, "Successful interrupt "
- "transfer!\n");
*status = 0;
}
break;
/* Others already handled above */
break;
}
- xhci_dbg(xhci, "ep %#x - asked for %d bytes, "
- "%d bytes untransferred\n",
- td->urb->ep->desc.bEndpointAddress,
- td->urb->transfer_buffer_length,
- TRB_LEN(le32_to_cpu(event->transfer_len)));
+ if (trb_comp_code == COMP_SHORT_TX)
+ xhci_dbg(xhci, "ep %#x - asked for %d bytes, "
+ "%d bytes untransferred\n",
+ td->urb->ep->desc.bEndpointAddress,
+ td->urb->transfer_buffer_length,
+ TRB_LEN(le32_to_cpu(event->transfer_len)));
/* Fast path - was this the last TRB in the TD for this URB? */
if (event_trb == td->last_trb) {
if (TRB_LEN(le32_to_cpu(event->transfer_len)) != 0) {
/* Endpoint ID is 1 based, our index is zero based */
ep_index = TRB_TO_EP_ID(le32_to_cpu(event->flags)) - 1;
- xhci_dbg(xhci, "%s - ep index = %d\n", __func__, ep_index);
ep = &xdev->eps[ep_index];
ep_ring = xhci_dma_to_transfer_ring(ep, le64_to_cpu(event->buffer));
ep_ctx = xhci_get_ep_ctx(xhci, xdev->out_ctx, ep_index);
TRB_TO_SLOT_ID(le32_to_cpu(event->flags)),
ep_index);
goto cleanup;
+ case COMP_DEV_ERR:
+ xhci_warn(xhci, "WARN: detect an incompatible device");
+ status = -EPROTO;
+ break;
case COMP_MISSED_INT:
/*
* When encounter missed service error, one or more isoc tds
/* Is this a TRB in the currently executing TD? */
event_seg = trb_in_td(ep_ring->deq_seg, ep_ring->dequeue,
td->last_trb, event_dma);
+
+ /*
+ * Skip the Force Stopped Event. The event_trb(event_dma) of FSE
+ * is not in the current TD pointed by ep_ring->dequeue because
+ * that the hardware dequeue pointer still at the previous TRB
+ * of the current TD. The previous TRB maybe a Link TD or the
+ * last TRB of the previous TD. The command completion handle
+ * will take care the rest.
+ */
+ if (!event_seg && trb_comp_code == COMP_STOP_INVAL) {
+ ret = 0;
+ goto cleanup;
+ }
+
if (!event_seg) {
if (!ep->skip ||
!usb_endpoint_xfer_isoc(&td->urb->ep->desc)) {
+ /* Some host controllers give a spurious
+ * successful event after a short transfer.
+ * Ignore it.
+ */
+ if ((xhci->quirks & XHCI_SPURIOUS_SUCCESS) &&
+ ep_ring->last_td_was_short) {
+ ep_ring->last_td_was_short = false;
+ ret = 0;
+ goto cleanup;
+ }
/* HC is busted, give up! */
xhci_err(xhci,
"ERROR Transfer event TRB DMA ptr not "
ret = skip_isoc_td(xhci, td, event, ep, &status);
goto cleanup;
}
+ if (trb_comp_code == COMP_SHORT_TX)
+ ep_ring->last_td_was_short = true;
+ else
+ ep_ring->last_td_was_short = false;
if (ep->skip) {
xhci_dbg(xhci, "Found td. Clear skip flag.\n");
xhci_urb_free_priv(xhci, urb_priv);
usb_hcd_unlink_urb_from_ep(bus_to_hcd(urb->dev->bus), urb);
- xhci_dbg(xhci, "Giveback URB %p, len = %d, "
- "status = %d\n",
- urb, urb->actual_length, status);
+ if ((urb->actual_length != urb->transfer_buffer_length &&
+ (urb->transfer_flags &
+ URB_SHORT_NOT_OK)) ||
+ status != 0)
+ xhci_dbg(xhci, "Giveback URB %p, len = %d, "
+ "expected = %x, status = %d\n",
+ urb, urb->actual_length,
+ urb->transfer_buffer_length,
+ status);
spin_unlock(&xhci->lock);
+ /* EHCI, UHCI, and OHCI always unconditionally set the
+ * urb->status of an isochronous endpoint to 0.
+ */
+ if (usb_pipetype(urb->pipe) == PIPE_ISOCHRONOUS)
+ status = 0;
usb_hcd_giveback_urb(bus_to_hcd(urb->dev->bus), urb, status);
spin_lock(&xhci->lock);
}
int update_ptrs = 1;
int ret;
- xhci_dbg(xhci, "In %s\n", __func__);
if (!xhci->event_ring || !xhci->event_ring->dequeue) {
xhci->error_bitmask |= 1 << 1;
return 0;
xhci->error_bitmask |= 1 << 2;
return 0;
}
- xhci_dbg(xhci, "%s - OS owns TRB\n", __func__);
/*
* Barrier between reading the TRB_CYCLE (valid) flag above and any
/* FIXME: Handle more event types. */
switch ((le32_to_cpu(event->event_cmd.flags) & TRB_TYPE_BITMASK)) {
case TRB_TYPE(TRB_COMPLETION):
- xhci_dbg(xhci, "%s - calling handle_cmd_completion\n", __func__);
handle_cmd_completion(xhci, &event->event_cmd);
- xhci_dbg(xhci, "%s - returned from handle_cmd_completion\n", __func__);
break;
case TRB_TYPE(TRB_PORT_STATUS):
- xhci_dbg(xhci, "%s - calling handle_port_status\n", __func__);
handle_port_status(xhci, event);
- xhci_dbg(xhci, "%s - returned from handle_port_status\n", __func__);
update_ptrs = 0;
break;
case TRB_TYPE(TRB_TRANSFER):
- xhci_dbg(xhci, "%s - calling handle_tx_event\n", __func__);
ret = handle_tx_event(xhci, &event->trans_event);
- xhci_dbg(xhci, "%s - returned from handle_tx_event\n", __func__);
if (ret < 0)
xhci->error_bitmask |= 1 << 9;
else
spin_unlock(&xhci->lock);
return IRQ_NONE;
}
- xhci_dbg(xhci, "op reg status = %08x\n", status);
- xhci_dbg(xhci, "Event ring dequeue ptr:\n");
- xhci_dbg(xhci, "@%llx %08x %08x %08x %08x\n",
- (unsigned long long)
- xhci_trb_virt_to_dma(xhci->event_ring->deq_seg, trb),
- lower_32_bits(le64_to_cpu(trb->link.segment_ptr)),
- upper_32_bits(le64_to_cpu(trb->link.segment_ptr)),
- (unsigned int) le32_to_cpu(trb->link.intr_target),
- (unsigned int) le32_to_cpu(trb->link.control));
-
if (status & STS_FATAL) {
xhci_warn(xhci, "WARNING: Host System Error\n");
xhci_halt(xhci);
u32 ep_state, unsigned int num_trbs, gfp_t mem_flags)
{
/* Make sure the endpoint has been added to xHC schedule */
- xhci_dbg(xhci, "Endpoint state = 0x%x\n", ep_state);
switch (ep_state) {
case EP_STATE_DISABLED:
/*
struct xhci_ring *ring = ep_ring;
union xhci_trb *next;
- xhci_dbg(xhci, "prepare_ring: pointing to link trb\n");
next = ring->enqueue;
while (last_trb(xhci, ring, ring->enq_seg, next)) {
git.openpandora.org / pandora-kernel.git / blobdiff