diff options
Diffstat (limited to 'drivers/usb/host/xhci-ring.c')
| -rw-r--r-- | drivers/usb/host/xhci-ring.c | 28 |
1 files changed, 22 insertions, 6 deletions
diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c index 3d9422f16a20..23b4aefd1036 100644 --- a/drivers/usb/host/xhci-ring.c +++ b/drivers/usb/host/xhci-ring.c @@ -1377,6 +1377,7 @@ static void handle_port_status(struct xhci_hcd *xhci, xhci_dbg(xhci, "resume HS port %d\n", port_id); bus_state->resume_done[faked_port_index] = jiffies + msecs_to_jiffies(20); + set_bit(faked_port_index, &bus_state->resuming_ports); mod_timer(&hcd->rh_timer, bus_state->resume_done[faked_port_index]); /* Do the rest in GetPortStatus */ @@ -1786,8 +1787,12 @@ static int process_isoc_td(struct xhci_hcd *xhci, struct xhci_td *td, /* handle completion code */ switch (trb_comp_code) { case COMP_SUCCESS: - frame->status = 0; - break; + if (TRB_LEN(le32_to_cpu(event->transfer_len)) == 0) { + frame->status = 0; + break; + } + if ((xhci->quirks & XHCI_TRUST_TX_LENGTH)) + trb_comp_code = COMP_SHORT_TX; case COMP_SHORT_TX: frame->status = td->urb->transfer_flags & URB_SHORT_NOT_OK ? -EREMOTEIO : 0; @@ -1803,6 +1808,7 @@ static int process_isoc_td(struct xhci_hcd *xhci, struct xhci_td *td, break; case COMP_DEV_ERR: case COMP_STALL: + case COMP_TX_ERR: frame->status = -EPROTO; skip_td = true; break; @@ -1883,13 +1889,16 @@ static int process_bulk_intr_td(struct xhci_hcd *xhci, struct xhci_td *td, switch (trb_comp_code) { case COMP_SUCCESS: /* Double check that the HW transferred everything. */ - if (event_trb != td->last_trb) { + if (event_trb != td->last_trb || + TRB_LEN(le32_to_cpu(event->transfer_len)) != 0) { xhci_warn(xhci, "WARN Successful completion " "on short TX\n"); if (td->urb->transfer_flags & URB_SHORT_NOT_OK) *status = -EREMOTEIO; else *status = 0; + if ((xhci->quirks & XHCI_TRUST_TX_LENGTH)) + trb_comp_code = COMP_SHORT_TX; } else { *status = 0; } @@ -2048,6 +2057,13 @@ static int handle_tx_event(struct xhci_hcd *xhci, * transfer type */ case COMP_SUCCESS: + if (TRB_LEN(le32_to_cpu(event->transfer_len)) == 0) + break; + if (xhci->quirks & XHCI_TRUST_TX_LENGTH) + trb_comp_code = COMP_SHORT_TX; + else + xhci_warn(xhci, "WARN Successful completion on short TX: " + "needs XHCI_TRUST_TX_LENGTH quirk?\n"); case COMP_SHORT_TX: break; case COMP_STOP: @@ -2270,7 +2286,7 @@ cleanup: (status != 0 && !usb_endpoint_xfer_isoc(&urb->ep->desc))) xhci_dbg(xhci, "Giveback URB %p, len = %d, " - "expected = %x, status = %d\n", + "expected = %d, status = %d\n", urb, urb->actual_length, urb->transfer_buffer_length, status); @@ -3593,12 +3609,12 @@ int xhci_queue_configure_endpoint(struct xhci_hcd *xhci, dma_addr_t in_ctx_ptr, /* Queue an evaluate context command TRB */ int xhci_queue_evaluate_context(struct xhci_hcd *xhci, dma_addr_t in_ctx_ptr, - u32 slot_id) + u32 slot_id, bool command_must_succeed) { return queue_command(xhci, lower_32_bits(in_ctx_ptr), upper_32_bits(in_ctx_ptr), 0, TRB_TYPE(TRB_EVAL_CONTEXT) | SLOT_ID_FOR_TRB(slot_id), - false); + command_must_succeed); } /* |