Lines Matching +full:additional +full:- +full:devs
1 // SPDX-License-Identifier: GPL-2.0
26 * until you reach a non-link TRB.
57 #include <linux/dma-mapping.h>
59 #include "xhci-trace.h"
74 if (!seg || !trb || trb < seg->trbs) in xhci_trb_virt_to_dma()
77 segment_offset = trb - seg->trbs; in xhci_trb_virt_to_dma()
80 return seg->dma + (segment_offset * sizeof(*trb)); in xhci_trb_virt_to_dma()
85 return TRB_TYPE_NOOP_LE32(trb->generic.field[3]); in trb_is_noop()
90 return TRB_TYPE_LINK_LE32(trb->link.control); in trb_is_link()
95 return trb == &seg->trbs[TRBS_PER_SEGMENT - 1]; in last_trb_on_seg()
101 return last_trb_on_seg(seg, trb) && (seg->next == ring->first_seg); in last_trb_on_ring()
106 return le32_to_cpu(trb->link.control) & LINK_TOGGLE; in link_trb_toggles_cycle()
111 struct urb_priv *urb_priv = td->urb->hcpriv; in last_td_in_urb()
113 return urb_priv->num_tds_done == urb_priv->num_tds; in last_td_in_urb()
118 struct urb_priv *urb_priv = urb->hcpriv; in inc_td_cnt()
120 urb_priv->num_tds_done++; in inc_td_cnt()
127 trb->link.control &= cpu_to_le32(~TRB_CHAIN); in trb_to_noop()
129 trb->generic.field[0] = 0; in trb_to_noop()
130 trb->generic.field[1] = 0; in trb_to_noop()
131 trb->generic.field[2] = 0; in trb_to_noop()
133 trb->generic.field[3] &= cpu_to_le32(TRB_CYCLE); in trb_to_noop()
134 trb->generic.field[3] |= cpu_to_le32(TRB_TYPE(noop_type)); in trb_to_noop()
148 *seg = (*seg)->next; in next_trb()
149 *trb = ((*seg)->trbs); in next_trb()
163 if (ring->type == TYPE_EVENT) { in inc_deq()
164 if (!last_trb_on_seg(ring->deq_seg, ring->dequeue)) { in inc_deq()
165 ring->dequeue++; in inc_deq()
168 if (last_trb_on_ring(ring, ring->deq_seg, ring->dequeue)) in inc_deq()
169 ring->cycle_state ^= 1; in inc_deq()
170 ring->deq_seg = ring->deq_seg->next; in inc_deq()
171 ring->dequeue = ring->deq_seg->trbs; in inc_deq()
176 if (!trb_is_link(ring->dequeue)) { in inc_deq()
177 if (last_trb_on_seg(ring->deq_seg, ring->dequeue)) in inc_deq()
180 ring->dequeue++; in inc_deq()
183 while (trb_is_link(ring->dequeue)) { in inc_deq()
184 ring->deq_seg = ring->deq_seg->next; in inc_deq()
185 ring->dequeue = ring->deq_seg->trbs; in inc_deq()
187 if (link_trb_count++ > ring->num_segs) { in inc_deq()
221 chain = le32_to_cpu(ring->enqueue->generic.field[3]) & TRB_CHAIN; in inc_enq()
223 if (last_trb_on_seg(ring->enq_seg, ring->enqueue)) { in inc_enq()
228 next = ++(ring->enqueue); in inc_enq()
247 if (!(ring->type == TYPE_ISOC && in inc_enq()
248 (xhci->quirks & XHCI_AMD_0x96_HOST)) && in inc_enq()
250 next->link.control &= cpu_to_le32(~TRB_CHAIN); in inc_enq()
251 next->link.control |= cpu_to_le32(chain); in inc_enq()
255 next->link.control ^= cpu_to_le32(TRB_CYCLE); in inc_enq()
259 ring->cycle_state ^= 1; in inc_enq()
261 ring->enq_seg = ring->enq_seg->next; in inc_enq()
262 ring->enqueue = ring->enq_seg->trbs; in inc_enq()
263 next = ring->enqueue; in inc_enq()
265 if (link_trb_count++ > ring->num_segs) { in inc_enq()
282 struct xhci_segment *enq_seg = ring->enq_seg; in xhci_num_trbs_free()
283 union xhci_trb *enq = ring->enqueue; in xhci_num_trbs_free()
290 enq_seg = enq_seg->next; in xhci_num_trbs_free()
291 enq = enq_seg->trbs; in xhci_num_trbs_free()
295 if (enq == ring->dequeue) in xhci_num_trbs_free()
296 return ring->num_segs * (TRBS_PER_SEGMENT - 1); in xhci_num_trbs_free()
299 if (ring->deq_seg == enq_seg && ring->dequeue >= enq) in xhci_num_trbs_free()
300 return free + (ring->dequeue - enq); in xhci_num_trbs_free()
301 last_on_seg = &enq_seg->trbs[TRBS_PER_SEGMENT - 1]; in xhci_num_trbs_free()
302 free += last_on_seg - enq; in xhci_num_trbs_free()
303 enq_seg = enq_seg->next; in xhci_num_trbs_free()
304 enq = enq_seg->trbs; in xhci_num_trbs_free()
305 } while (i++ <= ring->num_segs); in xhci_num_trbs_free()
324 enq_used = ring->enqueue - ring->enq_seg->trbs; in xhci_ring_expansion_needed()
327 trbs_past_seg = enq_used + num_trbs - (TRBS_PER_SEGMENT - 1); in xhci_ring_expansion_needed()
333 if (trb_is_link(ring->enqueue) && ring->enq_seg->next->trbs == ring->dequeue) in xhci_ring_expansion_needed()
336 new_segs = 1 + (trbs_past_seg / (TRBS_PER_SEGMENT - 1)); in xhci_ring_expansion_needed()
337 seg = ring->enq_seg; in xhci_ring_expansion_needed()
340 seg = seg->next; in xhci_ring_expansion_needed()
341 if (seg == ring->deq_seg) { in xhci_ring_expansion_needed()
348 new_segs--; in xhci_ring_expansion_needed()
357 if (!(xhci->cmd_ring_state & CMD_RING_STATE_RUNNING)) in xhci_ring_cmd_db()
364 writel(DB_VALUE_HOST, &xhci->dba->doorbell[0]); in xhci_ring_cmd_db()
366 readl(&xhci->dba->doorbell[0]); in xhci_ring_cmd_db()
371 return mod_delayed_work(system_wq, &xhci->cmd_timer, delay); in xhci_mod_cmd_timer()
376 return list_first_entry_or_null(&xhci->cmd_list, struct xhci_command, in xhci_next_queued_cmd()
381 * Turn all commands on command ring with status set to "aborted" to no-op trbs.
383 * This must be called with command ring stopped and xhci->lock held.
390 /* Turn all aborted commands in list to no-ops, then restart */ in xhci_handle_stopped_cmd_ring()
391 list_for_each_entry(i_cmd, &xhci->cmd_list, cmd_list) { in xhci_handle_stopped_cmd_ring()
393 if (i_cmd->status != COMP_COMMAND_ABORTED) in xhci_handle_stopped_cmd_ring()
396 i_cmd->status = COMP_COMMAND_RING_STOPPED; in xhci_handle_stopped_cmd_ring()
398 xhci_dbg(xhci, "Turn aborted command %p to no-op\n", in xhci_handle_stopped_cmd_ring()
399 i_cmd->command_trb); in xhci_handle_stopped_cmd_ring()
401 trb_to_noop(i_cmd->command_trb, TRB_CMD_NOOP); in xhci_handle_stopped_cmd_ring()
405 * completion event is received for these no-op commands in xhci_handle_stopped_cmd_ring()
409 xhci->cmd_ring_state = CMD_RING_STATE_RUNNING; in xhci_handle_stopped_cmd_ring()
412 if ((xhci->cmd_ring->dequeue != xhci->cmd_ring->enqueue) && in xhci_handle_stopped_cmd_ring()
413 !(xhci->xhc_state & XHCI_STATE_DYING)) { in xhci_handle_stopped_cmd_ring()
414 xhci->current_cmd = cur_cmd; in xhci_handle_stopped_cmd_ring()
420 /* Must be called with xhci->lock held, releases and aquires lock back */
423 struct xhci_segment *new_seg = xhci->cmd_ring->deq_seg; in xhci_abort_cmd_ring()
424 union xhci_trb *new_deq = xhci->cmd_ring->dequeue; in xhci_abort_cmd_ring()
430 reinit_completion(&xhci->cmd_ring_stop_completion); in xhci_abort_cmd_ring()
445 xhci_write_64(xhci, crcr | CMD_RING_ABORT, &xhci->op_regs->cmd_ring); in xhci_abort_cmd_ring()
449 * seconds then driver handles it as if host died (-ENODEV). in xhci_abort_cmd_ring()
450 * In the future we should distinguish between -ENODEV and -ETIMEDOUT in xhci_abort_cmd_ring()
451 * and try to recover a -ETIMEDOUT with a host controller reset. in xhci_abort_cmd_ring()
453 ret = xhci_handshake(&xhci->op_regs->cmd_ring, in xhci_abort_cmd_ring()
467 spin_unlock_irqrestore(&xhci->lock, flags); in xhci_abort_cmd_ring()
468 ret = wait_for_completion_timeout(&xhci->cmd_ring_stop_completion, in xhci_abort_cmd_ring()
470 spin_lock_irqsave(&xhci->lock, flags); in xhci_abort_cmd_ring()
485 __le32 __iomem *db_addr = &xhci->dba->doorbell[slot_id]; in xhci_ring_ep_doorbell()
486 struct xhci_virt_ep *ep = &xhci->devs[slot_id]->eps[ep_index]; in xhci_ring_ep_doorbell()
487 unsigned int ep_state = ep->ep_state; in xhci_ring_ep_doorbell()
514 ep = &xhci->devs[slot_id]->eps[ep_index]; in ring_doorbell_for_active_rings()
517 if (!(ep->ep_state & EP_HAS_STREAMS)) { in ring_doorbell_for_active_rings()
518 if (ep->ring && !(list_empty(&ep->ring->td_list))) in ring_doorbell_for_active_rings()
523 for (stream_id = 1; stream_id < ep->stream_info->num_streams; in ring_doorbell_for_active_rings()
525 struct xhci_stream_info *stream_info = ep->stream_info; in ring_doorbell_for_active_rings()
526 if (!list_empty(&stream_info->stream_rings[stream_id]->td_list)) in ring_doorbell_for_active_rings()
551 if (!xhci->devs[slot_id]) { in xhci_get_virt_ep()
556 return &xhci->devs[slot_id]->eps[ep_index]; in xhci_get_virt_ep()
564 if (!(ep->ep_state & EP_HAS_STREAMS)) in xhci_virt_ep_to_ring()
565 return ep->ring; in xhci_virt_ep_to_ring()
567 if (!ep->stream_info) in xhci_virt_ep_to_ring()
570 if (stream_id == 0 || stream_id >= ep->stream_info->num_streams) { in xhci_virt_ep_to_ring()
572 stream_id, ep->vdev->slot_id, ep->ep_index); in xhci_virt_ep_to_ring()
576 return ep->stream_info->stream_rings[stream_id]; in xhci_virt_ep_to_ring()
610 ep = &vdev->eps[ep_index]; in xhci_get_hw_deq()
612 if (ep->ep_state & EP_HAS_STREAMS) { in xhci_get_hw_deq()
613 st_ctx = &ep->stream_info->stream_ctx_array[stream_id]; in xhci_get_hw_deq()
614 return le64_to_cpu(st_ctx->stream_ring); in xhci_get_hw_deq()
616 ep_ctx = xhci_get_ep_ctx(xhci, vdev->out_ctx, ep_index); in xhci_get_hw_deq()
617 return le64_to_cpu(ep_ctx->deq); in xhci_get_hw_deq()
624 struct xhci_virt_device *dev = xhci->devs[slot_id]; in xhci_move_dequeue_past_td()
625 struct xhci_virt_ep *ep = &dev->eps[ep_index]; in xhci_move_dequeue_past_td()
643 return -ENODEV; in xhci_move_dequeue_past_td()
653 if (list_empty(&ep_ring->td_list)) { in xhci_move_dequeue_past_td()
654 new_seg = ep_ring->enq_seg; in xhci_move_dequeue_past_td()
655 new_deq = ep_ring->enqueue; in xhci_move_dequeue_past_td()
656 new_cycle = ep_ring->cycle_state; in xhci_move_dequeue_past_td()
661 return -EINVAL; in xhci_move_dequeue_past_td()
666 new_seg = ep_ring->deq_seg; in xhci_move_dequeue_past_td()
667 new_deq = ep_ring->dequeue; in xhci_move_dequeue_past_td()
683 if (new_deq == td->last_trb) in xhci_move_dequeue_past_td()
693 if (new_deq == ep->ring->dequeue) { in xhci_move_dequeue_past_td()
695 return -EINVAL; in xhci_move_dequeue_past_td()
707 return -EINVAL; in xhci_move_dequeue_past_td()
710 if ((ep->ep_state & SET_DEQ_PENDING)) { in xhci_move_dequeue_past_td()
713 return -EBUSY; in xhci_move_dequeue_past_td()
720 return -ENOMEM; in xhci_move_dequeue_past_td()
734 ep->queued_deq_seg = new_seg; in xhci_move_dequeue_past_td()
735 ep->queued_deq_ptr = new_deq; in xhci_move_dequeue_past_td()
745 ep->ep_state |= SET_DEQ_PENDING; in xhci_move_dequeue_past_td()
757 struct xhci_segment *seg = td->start_seg; in td_to_noop()
758 union xhci_trb *trb = td->first_trb; in td_to_noop()
764 if (flip_cycle && trb != td->first_trb && trb != td->last_trb) in td_to_noop()
765 trb->generic.field[3] ^= cpu_to_le32(TRB_CYCLE); in td_to_noop()
767 if (trb == td->last_trb) in td_to_noop()
775 * Must be called with xhci->lock held in interrupt context,
776 * releases and re-acquires xhci->lock
781 struct urb *urb = cur_td->urb; in xhci_giveback_urb_in_irq()
782 struct urb_priv *urb_priv = urb->hcpriv; in xhci_giveback_urb_in_irq()
783 struct usb_hcd *hcd = bus_to_hcd(urb->dev->bus); in xhci_giveback_urb_in_irq()
785 if (usb_pipetype(urb->pipe) == PIPE_ISOCHRONOUS) { in xhci_giveback_urb_in_irq()
786 xhci_to_hcd(xhci)->self.bandwidth_isoc_reqs--; in xhci_giveback_urb_in_irq()
787 if (xhci_to_hcd(xhci)->self.bandwidth_isoc_reqs == 0) { in xhci_giveback_urb_in_irq()
788 if (xhci->quirks & XHCI_AMD_PLL_FIX) in xhci_giveback_urb_in_irq()
801 struct device *dev = xhci_to_hcd(xhci)->self.sysdev; in xhci_unmap_td_bounce_buffer()
802 struct xhci_segment *seg = td->bounce_seg; in xhci_unmap_td_bounce_buffer()
803 struct urb *urb = td->urb; in xhci_unmap_td_bounce_buffer()
810 dma_unmap_single(dev, seg->bounce_dma, ring->bounce_buf_len, in xhci_unmap_td_bounce_buffer()
815 dma_unmap_single(dev, seg->bounce_dma, ring->bounce_buf_len, in xhci_unmap_td_bounce_buffer()
818 if (urb->num_sgs) { in xhci_unmap_td_bounce_buffer()
819 len = sg_pcopy_from_buffer(urb->sg, urb->num_sgs, seg->bounce_buf, in xhci_unmap_td_bounce_buffer()
820 seg->bounce_len, seg->bounce_offs); in xhci_unmap_td_bounce_buffer()
821 if (len != seg->bounce_len) in xhci_unmap_td_bounce_buffer()
823 len, seg->bounce_len); in xhci_unmap_td_bounce_buffer()
825 memcpy(urb->transfer_buffer + seg->bounce_offs, seg->bounce_buf, in xhci_unmap_td_bounce_buffer()
826 seg->bounce_len); in xhci_unmap_td_bounce_buffer()
828 seg->bounce_len = 0; in xhci_unmap_td_bounce_buffer()
829 seg->bounce_offs = 0; in xhci_unmap_td_bounce_buffer()
838 urb = td->urb; in xhci_td_cleanup()
845 * length, urb->actual_length will be a very big number (since it's in xhci_td_cleanup()
848 if (urb->actual_length > urb->transfer_buffer_length) { in xhci_td_cleanup()
850 urb->transfer_buffer_length, urb->actual_length); in xhci_td_cleanup()
851 urb->actual_length = 0; in xhci_td_cleanup()
855 if (!list_empty(&td->td_list)) in xhci_td_cleanup()
856 list_del_init(&td->td_list); in xhci_td_cleanup()
858 if (!list_empty(&td->cancelled_td_list)) in xhci_td_cleanup()
859 list_del_init(&td->cancelled_td_list); in xhci_td_cleanup()
864 if ((urb->actual_length != urb->transfer_buffer_length && in xhci_td_cleanup()
865 (urb->transfer_flags & URB_SHORT_NOT_OK)) || in xhci_td_cleanup()
866 (status != 0 && !usb_endpoint_xfer_isoc(&urb->ep->desc))) in xhci_td_cleanup()
868 urb, urb->actual_length, in xhci_td_cleanup()
869 urb->transfer_buffer_length, status); in xhci_td_cleanup()
872 if (usb_pipetype(urb->pipe) == PIPE_ISOCHRONOUS) in xhci_td_cleanup()
887 list_for_each_entry_safe(td, tmp_td, &ep->cancelled_td_list, in xhci_giveback_invalidated_tds()
890 ring = xhci_urb_to_transfer_ring(ep->xhci, td->urb); in xhci_giveback_invalidated_tds()
892 if (td->cancel_status == TD_CLEARED) { in xhci_giveback_invalidated_tds()
893 xhci_dbg(ep->xhci, "%s: Giveback cancelled URB %p TD\n", in xhci_giveback_invalidated_tds()
894 __func__, td->urb); in xhci_giveback_invalidated_tds()
895 xhci_td_cleanup(ep->xhci, td, ring, td->status); in xhci_giveback_invalidated_tds()
897 xhci_dbg(ep->xhci, "%s: Keep cancelled URB %p TD as cancel_status is %d\n", in xhci_giveback_invalidated_tds()
898 __func__, td->urb, td->cancel_status); in xhci_giveback_invalidated_tds()
900 if (ep->xhci->xhc_state & XHCI_STATE_DYING) in xhci_giveback_invalidated_tds()
913 ret = -ENOMEM; in xhci_reset_halted_ep()
917 xhci_dbg(xhci, "%s-reset ep %u, slot %u\n", in xhci_reset_halted_ep()
934 unsigned int slot_id = ep->vdev->slot_id; in xhci_handle_halted_endpoint()
941 if (ep->vdev->flags & VDEV_PORT_ERROR) in xhci_handle_halted_endpoint()
942 return -ENODEV; in xhci_handle_halted_endpoint()
946 ep->ep_state |= EP_HARD_CLEAR_TOGGLE; in xhci_handle_halted_endpoint()
947 if (td && list_empty(&td->cancelled_td_list)) { in xhci_handle_halted_endpoint()
948 list_add_tail(&td->cancelled_td_list, &ep->cancelled_td_list); in xhci_handle_halted_endpoint()
949 td->cancel_status = TD_HALTED; in xhci_handle_halted_endpoint()
953 if (ep->ep_state & EP_HALTED) { in xhci_handle_halted_endpoint()
955 ep->ep_index); in xhci_handle_halted_endpoint()
959 err = xhci_reset_halted_ep(xhci, slot_id, ep->ep_index, reset_type); in xhci_handle_halted_endpoint()
963 ep->ep_state |= EP_HALTED; in xhci_handle_halted_endpoint()
973 * We're also in the event handler, so we can't get re-interrupted if another
987 unsigned int slot_id = ep->vdev->slot_id; in xhci_invalidate_cancelled_tds()
990 xhci = ep->xhci; in xhci_invalidate_cancelled_tds()
992 list_for_each_entry_safe(td, tmp_td, &ep->cancelled_td_list, cancelled_td_list) { in xhci_invalidate_cancelled_tds()
996 td->start_seg, td->first_trb), in xhci_invalidate_cancelled_tds()
997 td->urb->stream_id, td->urb); in xhci_invalidate_cancelled_tds()
998 list_del_init(&td->td_list); in xhci_invalidate_cancelled_tds()
999 ring = xhci_urb_to_transfer_ring(xhci, td->urb); in xhci_invalidate_cancelled_tds()
1002 td->urb, td->urb->stream_id); in xhci_invalidate_cancelled_tds()
1011 hw_deq = xhci_get_hw_deq(xhci, ep->vdev, ep->ep_index, in xhci_invalidate_cancelled_tds()
1012 td->urb->stream_id); in xhci_invalidate_cancelled_tds()
1015 if (td->cancel_status == TD_HALTED || in xhci_invalidate_cancelled_tds()
1016 trb_in_td(xhci, td->start_seg, td->first_trb, td->last_trb, hw_deq, false)) { in xhci_invalidate_cancelled_tds()
1017 switch (td->cancel_status) { in xhci_invalidate_cancelled_tds()
1018 case TD_CLEARED: /* TD is already no-op */ in xhci_invalidate_cancelled_tds()
1023 td->cancel_status = TD_CLEARING_CACHE; in xhci_invalidate_cancelled_tds()
1028 td->urb->stream_id, td->urb, in xhci_invalidate_cancelled_tds()
1029 cached_td->urb->stream_id, cached_td->urb); in xhci_invalidate_cancelled_tds()
1035 td->cancel_status = TD_CLEARED; in xhci_invalidate_cancelled_tds()
1043 err = xhci_move_dequeue_past_td(xhci, slot_id, ep->ep_index, in xhci_invalidate_cancelled_tds()
1044 cached_td->urb->stream_id, in xhci_invalidate_cancelled_tds()
1047 /* Failed to move past cached td, just set cached TDs to no-op */ in xhci_invalidate_cancelled_tds()
1048 list_for_each_entry_safe(td, tmp_td, &ep->cancelled_td_list, cancelled_td_list) { in xhci_invalidate_cancelled_tds()
1049 if (td->cancel_status != TD_CLEARING_CACHE) in xhci_invalidate_cancelled_tds()
1052 td->urb); in xhci_invalidate_cancelled_tds()
1054 td->cancel_status = TD_CLEARED; in xhci_invalidate_cancelled_tds()
1062 * Only call for non-running rings without streams.
1069 if (!list_empty(&ep->ring->td_list)) { /* Not streams compatible */ in find_halted_td()
1070 hw_deq = xhci_get_hw_deq(ep->xhci, ep->vdev, ep->ep_index, 0); in find_halted_td()
1072 td = list_first_entry(&ep->ring->td_list, struct xhci_td, td_list); in find_halted_td()
1073 if (trb_in_td(ep->xhci, td->start_seg, td->first_trb, in find_halted_td()
1074 td->last_trb, hw_deq, false)) in find_halted_td()
1087 * 2. Otherwise, we turn all the TRBs in the TD into No-op TRBs (with the chain
1101 if (unlikely(TRB_TO_SUSPEND_PORT(le32_to_cpu(trb->generic.field[3])))) { in xhci_handle_cmd_stop_ep()
1102 if (!xhci->devs[slot_id]) in xhci_handle_cmd_stop_ep()
1108 ep_index = TRB_TO_EP_INDEX(le32_to_cpu(trb->generic.field[3])); in xhci_handle_cmd_stop_ep()
1113 ep_ctx = xhci_get_ep_ctx(xhci, ep->vdev->out_ctx, ep_index); in xhci_handle_cmd_stop_ep()
1126 * Proper error code is unknown here, it would be -EPIPE if device side in xhci_handle_cmd_stop_ep()
1127 * of enadpoit halted (aka STALL), and -EPROTO if not (transaction error) in xhci_handle_cmd_stop_ep()
1128 * We use -EPROTO, if device is stalled it should return a stall error on in xhci_handle_cmd_stop_ep()
1129 * next transfer, which then will return -EPIPE, and device side stall is in xhci_handle_cmd_stop_ep()
1135 if (ep->ep_state & EP_HAS_STREAMS) { in xhci_handle_cmd_stop_ep()
1141 td->status = -EPROTO; in xhci_handle_cmd_stop_ep()
1147 ep->ep_state &= ~EP_STOP_CMD_PENDING; in xhci_handle_cmd_stop_ep()
1155 ep->ep_state &= ~EP_STOP_CMD_PENDING; in xhci_handle_cmd_stop_ep()
1169 ep->ep_state &= ~EP_STOP_CMD_PENDING; in xhci_handle_cmd_stop_ep()
1181 list_for_each_entry_safe(cur_td, tmp, &ring->td_list, td_list) { in xhci_kill_ring_urbs()
1182 list_del_init(&cur_td->td_list); in xhci_kill_ring_urbs()
1184 if (!list_empty(&cur_td->cancelled_td_list)) in xhci_kill_ring_urbs()
1185 list_del_init(&cur_td->cancelled_td_list); in xhci_kill_ring_urbs()
1189 inc_td_cnt(cur_td->urb); in xhci_kill_ring_urbs()
1191 xhci_giveback_urb_in_irq(xhci, cur_td, -ESHUTDOWN); in xhci_kill_ring_urbs()
1207 if ((ep->ep_state & EP_HAS_STREAMS) || in xhci_kill_endpoint_urbs()
1208 (ep->ep_state & EP_GETTING_NO_STREAMS)) { in xhci_kill_endpoint_urbs()
1211 for (stream_id = 1; stream_id < ep->stream_info->num_streams; in xhci_kill_endpoint_urbs()
1213 ring = ep->stream_info->stream_rings[stream_id]; in xhci_kill_endpoint_urbs()
1223 ring = ep->ring; in xhci_kill_endpoint_urbs()
1232 list_for_each_entry_safe(cur_td, tmp, &ep->cancelled_td_list, in xhci_kill_endpoint_urbs()
1234 list_del_init(&cur_td->cancelled_td_list); in xhci_kill_endpoint_urbs()
1235 inc_td_cnt(cur_td->urb); in xhci_kill_endpoint_urbs()
1238 xhci_giveback_urb_in_irq(xhci, cur_td, -ESHUTDOWN); in xhci_kill_endpoint_urbs()
1248 * Call with xhci->lock held.
1249 * lock is relased and re-acquired while giving back urb.
1255 if (xhci->xhc_state & XHCI_STATE_DYING) in xhci_hc_died()
1259 xhci->xhc_state |= XHCI_STATE_DYING; in xhci_hc_died()
1264 for (i = 0; i <= HCS_MAX_SLOTS(xhci->hcs_params1); i++) { in xhci_hc_died()
1265 if (!xhci->devs[i]) in xhci_hc_died()
1272 if (!(xhci->xhc_state & XHCI_STATE_REMOVING)) in xhci_hc_died()
1283 dequeue_temp = ep_ring->dequeue; in update_ring_for_set_deq_completion()
1285 /* If we get two back-to-back stalls, and the first stalled transfer in update_ring_for_set_deq_completion()
1289 * the segment into la-la-land. in update_ring_for_set_deq_completion()
1291 if (trb_is_link(ep_ring->dequeue)) { in update_ring_for_set_deq_completion()
1292 ep_ring->deq_seg = ep_ring->deq_seg->next; in update_ring_for_set_deq_completion()
1293 ep_ring->dequeue = ep_ring->deq_seg->trbs; in update_ring_for_set_deq_completion()
1296 while (ep_ring->dequeue != dev->eps[ep_index].queued_deq_ptr) { in update_ring_for_set_deq_completion()
1298 ep_ring->dequeue++; in update_ring_for_set_deq_completion()
1299 if (trb_is_link(ep_ring->dequeue)) { in update_ring_for_set_deq_completion()
1300 if (ep_ring->dequeue == in update_ring_for_set_deq_completion()
1301 dev->eps[ep_index].queued_deq_ptr) in update_ring_for_set_deq_completion()
1303 ep_ring->deq_seg = ep_ring->deq_seg->next; in update_ring_for_set_deq_completion()
1304 ep_ring->dequeue = ep_ring->deq_seg->trbs; in update_ring_for_set_deq_completion()
1306 if (ep_ring->dequeue == dequeue_temp) { in update_ring_for_set_deq_completion()
1331 ep_index = TRB_TO_EP_INDEX(le32_to_cpu(trb->generic.field[3])); in xhci_handle_cmd_set_deq()
1332 stream_id = TRB_TO_STREAM_ID(le32_to_cpu(trb->generic.field[2])); in xhci_handle_cmd_set_deq()
1345 ep_ctx = xhci_get_ep_ctx(xhci, ep->vdev->out_ctx, ep_index); in xhci_handle_cmd_set_deq()
1346 slot_ctx = xhci_get_slot_ctx(xhci, ep->vdev->out_ctx); in xhci_handle_cmd_set_deq()
1361 slot_state = le32_to_cpu(slot_ctx->dev_state); in xhci_handle_cmd_set_deq()
1385 if (ep->ep_state & EP_HAS_STREAMS) { in xhci_handle_cmd_set_deq()
1387 &ep->stream_info->stream_ctx_array[stream_id]; in xhci_handle_cmd_set_deq()
1388 deq = le64_to_cpu(ctx->stream_ring) & SCTX_DEQ_MASK; in xhci_handle_cmd_set_deq()
1390 deq = le64_to_cpu(ep_ctx->deq) & ~EP_CTX_CYCLE_MASK; in xhci_handle_cmd_set_deq()
1394 if (xhci_trb_virt_to_dma(ep->queued_deq_seg, in xhci_handle_cmd_set_deq()
1395 ep->queued_deq_ptr) == deq) { in xhci_handle_cmd_set_deq()
1399 update_ring_for_set_deq_completion(xhci, ep->vdev, in xhci_handle_cmd_set_deq()
1404 ep->queued_deq_seg, ep->queued_deq_ptr); in xhci_handle_cmd_set_deq()
1408 list_for_each_entry_safe(td, tmp_td, &ep->cancelled_td_list, in xhci_handle_cmd_set_deq()
1410 ep_ring = xhci_urb_to_transfer_ring(ep->xhci, td->urb); in xhci_handle_cmd_set_deq()
1411 if (td->cancel_status == TD_CLEARING_CACHE) { in xhci_handle_cmd_set_deq()
1412 td->cancel_status = TD_CLEARED; in xhci_handle_cmd_set_deq()
1413 xhci_dbg(ep->xhci, "%s: Giveback cancelled URB %p TD\n", in xhci_handle_cmd_set_deq()
1414 __func__, td->urb); in xhci_handle_cmd_set_deq()
1415 xhci_td_cleanup(ep->xhci, td, ep_ring, td->status); in xhci_handle_cmd_set_deq()
1417 xhci_dbg(ep->xhci, "%s: Keep cancelled URB %p TD as cancel_status is %d\n", in xhci_handle_cmd_set_deq()
1418 __func__, td->urb, td->cancel_status); in xhci_handle_cmd_set_deq()
1422 ep->ep_state &= ~SET_DEQ_PENDING; in xhci_handle_cmd_set_deq()
1423 ep->queued_deq_seg = NULL; in xhci_handle_cmd_set_deq()
1424 ep->queued_deq_ptr = NULL; in xhci_handle_cmd_set_deq()
1436 ep_index = TRB_TO_EP_INDEX(le32_to_cpu(trb->generic.field[3])); in xhci_handle_cmd_reset_ep()
1441 ep_ctx = xhci_get_ep_ctx(xhci, ep->vdev->out_ctx, ep_index); in xhci_handle_cmd_reset_ep()
1454 ep->ep_state &= ~EP_HALTED; in xhci_handle_cmd_reset_ep()
1459 if ((le32_to_cpu(trb->generic.field[3])) & TRB_TSP) in xhci_handle_cmd_reset_ep()
1467 command->slot_id = slot_id; in xhci_handle_cmd_enable_slot()
1469 command->slot_id = 0; in xhci_handle_cmd_enable_slot()
1477 virt_dev = xhci->devs[slot_id]; in xhci_handle_cmd_disable_slot()
1481 slot_ctx = xhci_get_slot_ctx(xhci, virt_dev->out_ctx); in xhci_handle_cmd_disable_slot()
1484 if (xhci->quirks & XHCI_EP_LIMIT_QUIRK) in xhci_handle_cmd_disable_slot()
1503 virt_dev = xhci->devs[slot_id]; in xhci_handle_cmd_config_ep()
1506 ctrl_ctx = xhci_get_input_control_ctx(virt_dev->in_ctx); in xhci_handle_cmd_config_ep()
1512 add_flags = le32_to_cpu(ctrl_ctx->add_flags); in xhci_handle_cmd_config_ep()
1515 ep_index = xhci_last_valid_endpoint(add_flags) - 1; in xhci_handle_cmd_config_ep()
1517 ep_ctx = xhci_get_ep_ctx(xhci, virt_dev->out_ctx, ep_index); in xhci_handle_cmd_config_ep()
1528 vdev = xhci->devs[slot_id]; in xhci_handle_cmd_addr_dev()
1531 slot_ctx = xhci_get_slot_ctx(xhci, vdev->out_ctx); in xhci_handle_cmd_addr_dev()
1540 vdev = xhci->devs[slot_id]; in xhci_handle_cmd_reset_dev()
1546 slot_ctx = xhci_get_slot_ctx(xhci, vdev->out_ctx); in xhci_handle_cmd_reset_dev()
1555 if (!(xhci->quirks & XHCI_NEC_HOST)) { in xhci_handle_cmd_nec_get_fw()
1556 xhci_warn(xhci, "WARN NEC_GET_FW command on non-NEC host\n"); in xhci_handle_cmd_nec_get_fw()
1561 NEC_FW_MAJOR(le32_to_cpu(event->status)), in xhci_handle_cmd_nec_get_fw()
1562 NEC_FW_MINOR(le32_to_cpu(event->status))); in xhci_handle_cmd_nec_get_fw()
1567 list_del(&cmd->cmd_list); in xhci_complete_del_and_free_cmd()
1569 if (cmd->completion) { in xhci_complete_del_and_free_cmd()
1570 cmd->status = status; in xhci_complete_del_and_free_cmd()
1571 complete(cmd->completion); in xhci_complete_del_and_free_cmd()
1580 xhci->current_cmd = NULL; in xhci_cleanup_command_queue()
1581 list_for_each_entry_safe(cur_cmd, tmp_cmd, &xhci->cmd_list, cmd_list) in xhci_cleanup_command_queue()
1596 spin_lock_irqsave(&xhci->lock, flags); in xhci_handle_command_timeout()
1602 if (!xhci->current_cmd || delayed_work_pending(&xhci->cmd_timer)) { in xhci_handle_command_timeout()
1603 spin_unlock_irqrestore(&xhci->lock, flags); in xhci_handle_command_timeout()
1607 cmd_field3 = le32_to_cpu(xhci->current_cmd->command_trb->generic.field[3]); in xhci_handle_command_timeout()
1608 usbsts = readl(&xhci->op_regs->status); in xhci_handle_command_timeout()
1620 ep->ep_state &= ~EP_STOP_CMD_PENDING; in xhci_handle_command_timeout()
1628 xhci->current_cmd->status = COMP_COMMAND_ABORTED; in xhci_handle_command_timeout()
1631 hw_ring_state = xhci_read_64(xhci, &xhci->op_regs->cmd_ring); in xhci_handle_command_timeout()
1637 if ((xhci->cmd_ring_state & CMD_RING_STATE_RUNNING) && in xhci_handle_command_timeout()
1640 xhci->cmd_ring_state = CMD_RING_STATE_ABORTED; in xhci_handle_command_timeout()
1647 if (xhci->xhc_state & XHCI_STATE_REMOVING) { in xhci_handle_command_timeout()
1656 xhci_handle_stopped_cmd_ring(xhci, xhci->current_cmd); in xhci_handle_command_timeout()
1659 spin_unlock_irqrestore(&xhci->lock, flags); in xhci_handle_command_timeout()
1666 unsigned int slot_id = TRB_TO_SLOT_ID(le32_to_cpu(event->flags)); in handle_cmd_completion()
1679 cmd_dma = le64_to_cpu(event->cmd_trb); in handle_cmd_completion()
1680 cmd_trb = xhci->cmd_ring->dequeue; in handle_cmd_completion()
1682 trace_xhci_handle_command(xhci->cmd_ring, &cmd_trb->generic); in handle_cmd_completion()
1684 cmd_dequeue_dma = xhci_trb_virt_to_dma(xhci->cmd_ring->deq_seg, in handle_cmd_completion()
1696 cmd = list_first_entry(&xhci->cmd_list, struct xhci_command, cmd_list); in handle_cmd_completion()
1698 cancel_delayed_work(&xhci->cmd_timer); in handle_cmd_completion()
1700 cmd_comp_code = GET_COMP_CODE(le32_to_cpu(event->status)); in handle_cmd_completion()
1704 complete_all(&xhci->cmd_ring_stop_completion); in handle_cmd_completion()
1708 if (cmd->command_trb != xhci->cmd_ring->dequeue) { in handle_cmd_completion()
1721 xhci->cmd_ring_state = CMD_RING_STATE_STOPPED; in handle_cmd_completion()
1722 if (cmd->status == COMP_COMMAND_ABORTED) { in handle_cmd_completion()
1723 if (xhci->current_cmd == cmd) in handle_cmd_completion()
1724 xhci->current_cmd = NULL; in handle_cmd_completion()
1729 cmd_type = TRB_FIELD_TO_TYPE(le32_to_cpu(cmd_trb->generic.field[3])); in handle_cmd_completion()
1738 if (!cmd->completion) in handle_cmd_completion()
1748 le32_to_cpu(cmd_trb->generic.field[3]))); in handle_cmd_completion()
1749 if (!cmd->completion) in handle_cmd_completion()
1755 le32_to_cpu(cmd_trb->generic.field[3]))); in handle_cmd_completion()
1759 /* Is this an aborted command turned to NO-OP? */ in handle_cmd_completion()
1760 if (cmd->status == COMP_COMMAND_RING_STOPPED) in handle_cmd_completion()
1765 le32_to_cpu(cmd_trb->generic.field[3]))); in handle_cmd_completion()
1773 le32_to_cpu(cmd_trb->generic.field[3])); in handle_cmd_completion()
1786 if (!list_is_singular(&xhci->cmd_list)) { in handle_cmd_completion()
1787 xhci->current_cmd = list_first_entry(&cmd->cmd_list, in handle_cmd_completion()
1790 } else if (xhci->current_cmd == cmd) { in handle_cmd_completion()
1791 xhci->current_cmd = NULL; in handle_cmd_completion()
1797 inc_deq(xhci, xhci->cmd_ring); in handle_cmd_completion()
1804 if (trb_type == TRB_NEC_CMD_COMP && (xhci->quirks & XHCI_NEC_HOST)) in handle_vendor_event()
1805 handle_cmd_completion(xhci, &event->event_cmd); in handle_vendor_event()
1814 slot_id = TRB_TO_SLOT_ID(le32_to_cpu(event->generic.field[3])); in handle_device_notification()
1815 if (!xhci->devs[slot_id]) { in handle_device_notification()
1823 udev = xhci->devs[slot_id]->udev; in handle_device_notification()
1824 if (udev && udev->parent) in handle_device_notification()
1825 usb_wakeup_notification(udev->parent, udev->portnum); in handle_device_notification()
1831 * As per ThunderX2errata-129 USB 2 device may come up as USB 1
1848 writel(0x6F, hcd->regs + 0x1048); in xhci_cavium_reset_phy_quirk()
1850 /* De-assert the PHY reset */ in xhci_cavium_reset_phy_quirk()
1851 writel(0x7F, hcd->regs + 0x1048); in xhci_cavium_reset_phy_quirk()
1853 pll_lock_check = readl(hcd->regs + 0x1070); in xhci_cavium_reset_phy_quirk()
1854 } while (!(pll_lock_check & 0x1) && --retry_count); in xhci_cavium_reset_phy_quirk()
1872 if (GET_COMP_CODE(le32_to_cpu(event->generic.field[2])) != COMP_SUCCESS) in handle_port_status()
1876 port_id = GET_PORT_ID(le32_to_cpu(event->generic.field[0])); in handle_port_status()
1877 max_ports = HCS_MAX_PORTS(xhci->hcs_params1); in handle_port_status()
1882 inc_deq(xhci, ir->event_ring); in handle_port_status()
1886 port = &xhci->hw_ports[port_id - 1]; in handle_port_status()
1887 if (!port || !port->rhub || port->hcd_portnum == DUPLICATE_ENTRY) { in handle_port_status()
1895 if (port->rhub == &xhci->usb3_rhub && xhci->shared_hcd == NULL) { in handle_port_status()
1901 hcd = port->rhub->hcd; in handle_port_status()
1902 bus_state = &port->rhub->bus_state; in handle_port_status()
1903 hcd_portnum = port->hcd_portnum; in handle_port_status()
1904 portsc = readl(port->addr); in handle_port_status()
1906 xhci_dbg(xhci, "Port change event, %d-%d, id %d, portsc: 0x%x\n", in handle_port_status()
1907 hcd->self.busnum, hcd_portnum + 1, port_id, portsc); in handle_port_status()
1911 if (hcd->state == HC_STATE_SUSPENDED) { in handle_port_status()
1916 if (hcd->speed >= HCD_USB3 && in handle_port_status()
1919 if (slot_id && xhci->devs[slot_id]) in handle_port_status()
1920 xhci->devs[slot_id]->flags |= VDEV_PORT_ERROR; in handle_port_status()
1926 cmd_reg = readl(&xhci->op_regs->command); in handle_port_status()
1938 bus_state->port_remote_wakeup |= 1 << hcd_portnum; in handle_port_status()
1940 usb_hcd_start_port_resume(&hcd->self, hcd_portnum); in handle_port_status()
1947 } else if (!test_bit(hcd_portnum, &bus_state->resuming_ports)) { in handle_port_status()
1949 port->resume_timestamp = jiffies + in handle_port_status()
1951 set_bit(hcd_portnum, &bus_state->resuming_ports); in handle_port_status()
1954 * usb device auto-resume latency around ~40ms. in handle_port_status()
1956 set_bit(HCD_FLAG_POLL_RH, &hcd->flags); in handle_port_status()
1957 mod_timer(&hcd->rh_timer, in handle_port_status()
1958 port->resume_timestamp); in handle_port_status()
1959 usb_hcd_start_port_resume(&hcd->self, hcd_portnum); in handle_port_status()
1970 complete(&port->u3exit_done); in handle_port_status()
1973 * U3Exit state after a host-initiated resume. If it's a device in handle_port_status()
1979 if (slot_id && xhci->devs[slot_id]) in handle_port_status()
1981 if (bus_state->port_remote_wakeup & (1 << hcd_portnum)) { in handle_port_status()
1983 usb_wakeup_notification(hcd->self.root_hub, in handle_port_status()
1991 * Check to see if xhci-hub.c is waiting on RExit to U0 transition (or in handle_port_status()
1995 if (hcd->speed < HCD_USB3 && port->rexit_active) { in handle_port_status()
1996 complete(&port->rexit_done); in handle_port_status()
1997 port->rexit_active = false; in handle_port_status()
2002 if (hcd->speed < HCD_USB3) { in handle_port_status()
2004 if ((xhci->quirks & XHCI_RESET_PLL_ON_DISCONNECT) && in handle_port_status()
2011 inc_deq(xhci, ir->event_ring); in handle_port_status()
2021 * xHCI port-status-change events occur when the "or" of all the in handle_port_status()
2022 * status-change bits in the portsc register changes from 0 to 1. in handle_port_status()
2028 __func__, hcd->self.busnum); in handle_port_status()
2029 set_bit(HCD_FLAG_POLL_RH, &hcd->flags); in handle_port_status()
2030 spin_unlock(&xhci->lock); in handle_port_status()
2033 spin_lock(&xhci->lock); in handle_port_status()
2062 &cur_seg->trbs[TRBS_PER_SEGMENT - 1]); in trb_in_td()
2068 …"Looking for event-dma %016llx trb-start %016llx trb-end %016llx seg-start %016llx seg-end %016llx… in trb_in_td()
2072 (unsigned long long)cur_seg->dma, in trb_in_td()
2086 (suspect_dma >= cur_seg->dma && in trb_in_td()
2096 cur_seg = cur_seg->next; in trb_in_td()
2097 start_dma = xhci_trb_virt_to_dma(cur_seg, &cur_seg->trbs[0]); in trb_in_td()
2107 * As part of low/full-speed endpoint-halt processing in xhci_clear_hub_tt_buffer()
2110 if (td->urb->dev->tt && !usb_pipeint(td->urb->pipe) && in xhci_clear_hub_tt_buffer()
2111 (td->urb->dev->tt->hub != xhci_to_hcd(xhci)->self.root_hub) && in xhci_clear_hub_tt_buffer()
2112 !(ep->ep_state & EP_CLEARING_TT)) { in xhci_clear_hub_tt_buffer()
2113 ep->ep_state |= EP_CLEARING_TT; in xhci_clear_hub_tt_buffer()
2114 td->urb->ep->hcpriv = td->urb->dev; in xhci_clear_hub_tt_buffer()
2115 if (usb_hub_clear_tt_buffer(td->urb)) in xhci_clear_hub_tt_buffer()
2116 ep->ep_state &= ~EP_CLEARING_TT; in xhci_clear_hub_tt_buffer()
2121 * cleanup the halt for a non-default control endpoint if we indicate a stall.
2150 * treat as not-an-error. in xhci_is_vendor_info_code()
2166 ep_ctx = xhci_get_ep_ctx(xhci, ep->vdev->out_ctx, ep->ep_index); in finish_td()
2198 if ((ep->ep_state & EP_HALTED) && in finish_td()
2199 !list_empty(&td->cancelled_td_list)) { in finish_td()
2202 td->start_seg, td->first_trb)); in finish_td()
2223 if (ep->ep_index != 0) in finish_td()
2234 ep_ring->dequeue = td->last_trb; in finish_td()
2235 ep_ring->deq_seg = td->last_trb_seg; in finish_td()
2238 return xhci_td_cleanup(xhci, td, ep_ring, td->status); in finish_td()
2246 union xhci_trb *trb = ring->dequeue; in sum_trb_lengths()
2247 struct xhci_segment *seg = ring->deq_seg; in sum_trb_lengths()
2251 sum += TRB_LEN(le32_to_cpu(trb->generic.field[2])); in sum_trb_lengths()
2268 trb_type = TRB_FIELD_TO_TYPE(le32_to_cpu(ep_trb->generic.field[3])); in process_ctrl_td()
2269 ep_ctx = xhci_get_ep_ctx(xhci, ep->vdev->out_ctx, ep->ep_index); in process_ctrl_td()
2270 trb_comp_code = GET_COMP_CODE(le32_to_cpu(event->transfer_len)); in process_ctrl_td()
2271 requested = td->urb->transfer_buffer_length; in process_ctrl_td()
2272 remaining = EVENT_TRB_LEN(le32_to_cpu(event->transfer_len)); in process_ctrl_td()
2279 td->status = -ESHUTDOWN; in process_ctrl_td()
2282 td->status = 0; in process_ctrl_td()
2285 td->status = 0; in process_ctrl_td()
2289 td->urb->actual_length = remaining; in process_ctrl_td()
2296 td->urb->actual_length = 0; in process_ctrl_td()
2300 td->urb->actual_length = requested - remaining; in process_ctrl_td()
2303 td->urb->actual_length = requested; in process_ctrl_td()
2317 trb_comp_code, ep->ep_index); in process_ctrl_td()
2322 td->urb->actual_length = requested - remaining; in process_ctrl_td()
2323 else if (!td->urb_length_set) in process_ctrl_td()
2324 td->urb->actual_length = 0; in process_ctrl_td()
2338 td->urb_length_set = true; in process_ctrl_td()
2339 td->urb->actual_length = requested - remaining; in process_ctrl_td()
2345 if (!td->urb_length_set) in process_ctrl_td()
2346 td->urb->actual_length = requested; in process_ctrl_td()
2367 trb_comp_code = GET_COMP_CODE(le32_to_cpu(event->transfer_len)); in process_isoc_td()
2368 urb_priv = td->urb->hcpriv; in process_isoc_td()
2369 idx = urb_priv->num_tds_done; in process_isoc_td()
2370 frame = &td->urb->iso_frame_desc[idx]; in process_isoc_td()
2371 requested = frame->length; in process_isoc_td()
2372 remaining = EVENT_TRB_LEN(le32_to_cpu(event->transfer_len)); in process_isoc_td()
2373 ep_trb_len = TRB_LEN(le32_to_cpu(ep_trb->generic.field[2])); in process_isoc_td()
2374 short_framestatus = td->urb->transfer_flags & URB_SHORT_NOT_OK ? in process_isoc_td()
2375 -EREMOTEIO : 0; in process_isoc_td()
2381 if (td->error_mid_td) in process_isoc_td()
2384 frame->status = short_framestatus; in process_isoc_td()
2385 if (xhci->quirks & XHCI_TRUST_TX_LENGTH) in process_isoc_td()
2389 frame->status = 0; in process_isoc_td()
2392 frame->status = short_framestatus; in process_isoc_td()
2396 frame->status = -ECOMM; in process_isoc_td()
2402 frame->status = -EOVERFLOW; in process_isoc_td()
2403 if (ep_trb != td->last_trb) in process_isoc_td()
2404 td->error_mid_td = true; in process_isoc_td()
2408 frame->status = -EPROTO; in process_isoc_td()
2411 frame->status = -EPROTO; in process_isoc_td()
2413 if (ep_trb != td->last_trb) in process_isoc_td()
2414 td->error_mid_td = true; in process_isoc_td()
2421 frame->status = short_framestatus; in process_isoc_td()
2430 frame->status = -1; in process_isoc_td()
2434 if (td->urb_length_set) in process_isoc_td()
2438 frame->actual_length = sum_trb_lengths(xhci, ep->ring, ep_trb) + in process_isoc_td()
2439 ep_trb_len - remaining; in process_isoc_td()
2441 frame->actual_length = requested; in process_isoc_td()
2443 td->urb->actual_length += frame->actual_length; in process_isoc_td()
2447 if (td->error_mid_td && ep_trb != td->last_trb) { in process_isoc_td()
2449 td->urb_length_set = true; in process_isoc_td()
2463 urb_priv = td->urb->hcpriv; in skip_isoc_td()
2464 idx = urb_priv->num_tds_done; in skip_isoc_td()
2465 frame = &td->urb->iso_frame_desc[idx]; in skip_isoc_td()
2468 frame->status = -EXDEV; in skip_isoc_td()
2471 frame->actual_length = 0; in skip_isoc_td()
2474 ep->ring->dequeue = td->last_trb; in skip_isoc_td()
2475 ep->ring->deq_seg = td->last_trb_seg; in skip_isoc_td()
2476 inc_deq(xhci, ep->ring); in skip_isoc_td()
2478 return xhci_td_cleanup(xhci, td, ep->ring, status); in skip_isoc_td()
2492 slot_ctx = xhci_get_slot_ctx(xhci, ep->vdev->out_ctx); in process_bulk_intr_td()
2493 trb_comp_code = GET_COMP_CODE(le32_to_cpu(event->transfer_len)); in process_bulk_intr_td()
2494 remaining = EVENT_TRB_LEN(le32_to_cpu(event->transfer_len)); in process_bulk_intr_td()
2495 ep_trb_len = TRB_LEN(le32_to_cpu(ep_trb->generic.field[2])); in process_bulk_intr_td()
2496 requested = td->urb->transfer_buffer_length; in process_bulk_intr_td()
2500 ep->err_count = 0; in process_bulk_intr_td()
2502 if (ep_trb != td->last_trb || remaining) { in process_bulk_intr_td()
2504 xhci_dbg(xhci, "ep %#x - asked for %d bytes, %d bytes untransferred\n", in process_bulk_intr_td()
2505 td->urb->ep->desc.bEndpointAddress, in process_bulk_intr_td()
2508 td->status = 0; in process_bulk_intr_td()
2511 xhci_dbg(xhci, "ep %#x - asked for %d bytes, %d bytes untransferred\n", in process_bulk_intr_td()
2512 td->urb->ep->desc.bEndpointAddress, in process_bulk_intr_td()
2514 td->status = 0; in process_bulk_intr_td()
2517 td->urb->actual_length = remaining; in process_bulk_intr_td()
2525 if (xhci->quirks & XHCI_NO_SOFT_RETRY || in process_bulk_intr_td()
2526 (ep->err_count++ > MAX_SOFT_RETRY) || in process_bulk_intr_td()
2527 le32_to_cpu(slot_ctx->tt_info) & TT_SLOT) in process_bulk_intr_td()
2530 td->status = 0; in process_bulk_intr_td()
2539 if (ep_trb == td->last_trb) in process_bulk_intr_td()
2540 td->urb->actual_length = requested - remaining; in process_bulk_intr_td()
2542 td->urb->actual_length = in process_bulk_intr_td()
2544 ep_trb_len - remaining; in process_bulk_intr_td()
2549 td->urb->actual_length = 0; in process_bulk_intr_td()
2572 int status = -EINPROGRESS; in handle_tx_event()
2578 slot_id = TRB_TO_SLOT_ID(le32_to_cpu(event->flags)); in handle_tx_event()
2579 ep_index = TRB_TO_EP_ID(le32_to_cpu(event->flags)) - 1; in handle_tx_event()
2580 trb_comp_code = GET_COMP_CODE(le32_to_cpu(event->transfer_len)); in handle_tx_event()
2581 ep_trb_dma = le64_to_cpu(event->buffer); in handle_tx_event()
2590 ep_ctx = xhci_get_ep_ctx(xhci, ep->vdev->out_ctx, ep_index); in handle_tx_event()
2608 if (ep->err_count++ > MAX_SOFT_RETRY) in handle_tx_event()
2626 /* Count current td numbers if ep->skip is set */ in handle_tx_event()
2627 if (ep->skip) in handle_tx_event()
2628 td_num += list_count_nodes(&ep_ring->td_list); in handle_tx_event()
2636 if (EVENT_TRB_LEN(le32_to_cpu(event->transfer_len)) == 0) in handle_tx_event()
2638 if (xhci->quirks & XHCI_TRUST_TX_LENGTH || in handle_tx_event()
2639 ep_ring->last_td_was_short) in handle_tx_event()
2655 "Stopped on No-op or Link TRB for slot %u ep %u\n", in handle_tx_event()
2667 status = -EPIPE; in handle_tx_event()
2672 status = -EPROTO; in handle_tx_event()
2677 status = -EPROTO; in handle_tx_event()
2682 status = -EOVERFLOW; in handle_tx_event()
2689 status = -EILSEQ; in handle_tx_event()
2696 status = -ENOSR; in handle_tx_event()
2715 if (!list_empty(&ep_ring->td_list)) in handle_tx_event()
2718 TRB_TO_SLOT_ID(le32_to_cpu(event->flags)), in handle_tx_event()
2723 if (!list_empty(&ep_ring->td_list)) in handle_tx_event()
2726 TRB_TO_SLOT_ID(le32_to_cpu(event->flags)), in handle_tx_event()
2736 ep->skip = true; in handle_tx_event()
2742 ep->skip = true; in handle_tx_event()
2753 status = -EPROTO; in handle_tx_event()
2770 if (list_empty(&ep_ring->td_list)) { in handle_tx_event()
2781 ep_ring->last_td_was_short)) { in handle_tx_event()
2783 TRB_TO_SLOT_ID(le32_to_cpu(event->flags)), in handle_tx_event()
2786 if (ep->skip) { in handle_tx_event()
2787 ep->skip = false; in handle_tx_event()
2800 /* We've skipped all the TDs on the ep ring when ep->skip set */ in handle_tx_event()
2801 if (ep->skip && td_num == 0) { in handle_tx_event()
2802 ep->skip = false; in handle_tx_event()
2808 td = list_first_entry(&ep_ring->td_list, struct xhci_td, in handle_tx_event()
2810 if (ep->skip) in handle_tx_event()
2811 td_num--; in handle_tx_event()
2814 ep_seg = trb_in_td(xhci, ep_ring->deq_seg, ep_ring->dequeue, in handle_tx_event()
2815 td->last_trb, ep_trb_dma, false); in handle_tx_event()
2819 * is not in the current TD pointed by ep_ring->dequeue because in handle_tx_event()
2832 if (ep->skip && usb_endpoint_xfer_isoc(&td->urb->ep->desc)) { in handle_tx_event()
2841 if ((xhci->quirks & XHCI_SPURIOUS_SUCCESS) && in handle_tx_event()
2842 ep_ring->last_td_was_short) { in handle_tx_event()
2843 ep_ring->last_td_was_short = false; in handle_tx_event()
2852 * xhci 4.9.1 states that if there are errors in mult-TRB in handle_tx_event()
2858 if (td->error_mid_td && in handle_tx_event()
2859 !list_is_last(&td->td_list, &ep_ring->td_list)) { in handle_tx_event()
2862 ep_seg = trb_in_td(xhci, td_next->start_seg, td_next->first_trb, in handle_tx_event()
2863 td_next->last_trb, ep_trb_dma, false); in handle_tx_event()
2867 ep_ring->dequeue = td->last_trb; in handle_tx_event()
2868 ep_ring->deq_seg = td->last_trb_seg; in handle_tx_event()
2870 xhci_td_cleanup(xhci, td, ep_ring, td->status); in handle_tx_event()
2882 trb_in_td(xhci, ep_ring->deq_seg, in handle_tx_event()
2883 ep_ring->dequeue, td->last_trb, in handle_tx_event()
2885 return -ESHUTDOWN; in handle_tx_event()
2889 ep_ring->last_td_was_short = true; in handle_tx_event()
2891 ep_ring->last_td_was_short = false; in handle_tx_event()
2893 if (ep->skip) { in handle_tx_event()
2897 ep->skip = false; in handle_tx_event()
2900 ep_trb = &ep_seg->trbs[(ep_trb_dma - ep_seg->dma) / in handle_tx_event()
2907 * No-op TRB could trigger interrupts in a case where in handle_tx_event()
2923 td->status = status; in handle_tx_event()
2926 if (usb_endpoint_xfer_control(&td->urb->ep->desc)) in handle_tx_event()
2928 else if (usb_endpoint_xfer_isoc(&td->urb->ep->desc)) in handle_tx_event()
2933 handling_skipped_tds = ep->skip && in handle_tx_event()
2942 inc_deq(xhci, ir->event_ring); in handle_tx_event()
2945 * If ep->skip is set, it means there are missed tds on the in handle_tx_event()
2957 ir->event_ring->deq_seg, in handle_tx_event()
2958 ir->event_ring->dequeue), in handle_tx_event()
2959 lower_32_bits(le64_to_cpu(event->buffer)), in handle_tx_event()
2960 upper_32_bits(le64_to_cpu(event->buffer)), in handle_tx_event()
2961 le32_to_cpu(event->transfer_len), in handle_tx_event()
2962 le32_to_cpu(event->flags)); in handle_tx_event()
2963 return -ENODEV; in handle_tx_event()
2967 * This function handles all OS-owned events on the event ring. It may drop
2968 * xhci->lock between event processing (e.g. to pass up port status changes).
2980 if (!ir || !ir->event_ring || !ir->event_ring->dequeue) { in xhci_handle_event()
2982 return -ENOMEM; in xhci_handle_event()
2985 event = ir->event_ring->dequeue; in xhci_handle_event()
2987 if ((le32_to_cpu(event->event_cmd.flags) & TRB_CYCLE) != in xhci_handle_event()
2988 ir->event_ring->cycle_state) in xhci_handle_event()
2991 trace_xhci_handle_event(ir->event_ring, &event->generic); in xhci_handle_event()
2998 trb_type = TRB_FIELD_TO_TYPE(le32_to_cpu(event->event_cmd.flags)); in xhci_handle_event()
3003 handle_cmd_completion(xhci, &event->event_cmd); in xhci_handle_event()
3010 ret = handle_tx_event(xhci, ir, &event->trans_event); in xhci_handle_event()
3023 /* Any of the above functions may drop and re-acquire the lock, so check in xhci_handle_event()
3024 * to make sure a watchdog timer didn't mark the host as non-responsive. in xhci_handle_event()
3026 if (xhci->xhc_state & XHCI_STATE_DYING) { in xhci_handle_event()
3034 inc_deq(xhci, ir->event_ring); in xhci_handle_event()
3044 * - When all events have finished
3045 * - To avoid "Event Ring Full Error" condition
3055 temp_64 = xhci_read_64(xhci, &ir->ir_set->erst_dequeue); in xhci_update_erst_dequeue()
3057 if (event_ring_deq != ir->event_ring->dequeue) { in xhci_update_erst_dequeue()
3058 deq = xhci_trb_virt_to_dma(ir->event_ring->deq_seg, in xhci_update_erst_dequeue()
3059 ir->event_ring->dequeue); in xhci_update_erst_dequeue()
3078 xhci_write_64(xhci, temp_64, &ir->ir_set->erst_dequeue); in xhci_update_erst_dequeue()
3096 spin_lock(&xhci->lock); in xhci_irq()
3098 status = readl(&xhci->op_regs->status); in xhci_irq()
3122 * so we can receive interrupts from other MSI-X interrupters. in xhci_irq()
3126 writel(status, &xhci->op_regs->status); in xhci_irq()
3129 ir = xhci->interrupter; in xhci_irq()
3130 if (!hcd->msi_enabled) { in xhci_irq()
3132 irq_pending = readl(&ir->ir_set->irq_pending); in xhci_irq()
3134 writel(irq_pending, &ir->ir_set->irq_pending); in xhci_irq()
3137 if (xhci->xhc_state & XHCI_STATE_DYING || in xhci_irq()
3138 xhci->xhc_state & XHCI_STATE_HALTED) { in xhci_irq()
3144 temp_64 = xhci_read_64(xhci, &ir->ir_set->erst_dequeue); in xhci_irq()
3146 &ir->ir_set->erst_dequeue); in xhci_irq()
3151 event_ring_deq = ir->event_ring->dequeue; in xhci_irq()
3159 event_ring_deq = ir->event_ring->dequeue; in xhci_irq()
3161 /* ring is half-full, force isoc trbs to interrupt more often */ in xhci_irq()
3162 if (xhci->isoc_bei_interval > AVOID_BEI_INTERVAL_MIN) in xhci_irq()
3163 xhci->isoc_bei_interval = xhci->isoc_bei_interval / 2; in xhci_irq()
3172 spin_unlock(&xhci->lock); in xhci_irq()
3198 trb = &ring->enqueue->generic; in queue_trb()
3199 trb->field[0] = cpu_to_le32(field1); in queue_trb()
3200 trb->field[1] = cpu_to_le32(field2); in queue_trb()
3201 trb->field[2] = cpu_to_le32(field3); in queue_trb()
3204 trb->field[3] = cpu_to_le32(field4); in queue_trb()
3229 return -ENOENT; in prepare_ring()
3233 /* XXX not sure if this should be -ENOENT or not */ in prepare_ring()
3234 return -EINVAL; in prepare_ring()
3247 return -EINVAL; in prepare_ring()
3250 if (ep_ring != xhci->cmd_ring) { in prepare_ring()
3254 return -ENOMEM; in prepare_ring()
3262 return -ENOMEM; in prepare_ring()
3266 while (trb_is_link(ep_ring->enqueue)) { in prepare_ring()
3271 !(ep_ring->type == TYPE_ISOC && in prepare_ring()
3272 (xhci->quirks & XHCI_AMD_0x96_HOST))) in prepare_ring()
3273 ep_ring->enqueue->link.control &= in prepare_ring()
3276 ep_ring->enqueue->link.control |= in prepare_ring()
3280 ep_ring->enqueue->link.control ^= cpu_to_le32(TRB_CYCLE); in prepare_ring()
3283 if (link_trb_toggles_cycle(ep_ring->enqueue)) in prepare_ring()
3284 ep_ring->cycle_state ^= 1; in prepare_ring()
3286 ep_ring->enq_seg = ep_ring->enq_seg->next; in prepare_ring()
3287 ep_ring->enqueue = ep_ring->enq_seg->trbs; in prepare_ring()
3290 if (link_trb_count++ > ep_ring->num_segs) { in prepare_ring()
3292 return -EINVAL; in prepare_ring()
3296 if (last_trb_on_seg(ep_ring->enq_seg, ep_ring->enqueue)) { in prepare_ring()
3298 return -EINVAL; in prepare_ring()
3317 struct xhci_ep_ctx *ep_ctx = xhci_get_ep_ctx(xhci, xdev->out_ctx, ep_index); in prepare_transfer()
3319 ep_ring = xhci_triad_to_transfer_ring(xhci, xdev->slot_id, ep_index, in prepare_transfer()
3324 return -EINVAL; in prepare_transfer()
3332 urb_priv = urb->hcpriv; in prepare_transfer()
3333 td = &urb_priv->td[td_index]; in prepare_transfer()
3335 INIT_LIST_HEAD(&td->td_list); in prepare_transfer()
3336 INIT_LIST_HEAD(&td->cancelled_td_list); in prepare_transfer()
3339 ret = usb_hcd_link_urb_to_ep(bus_to_hcd(urb->dev->bus), urb); in prepare_transfer()
3344 td->urb = urb; in prepare_transfer()
3346 list_add_tail(&td->td_list, &ep_ring->td_list); in prepare_transfer()
3347 td->start_seg = ep_ring->enq_seg; in prepare_transfer()
3348 td->first_trb = ep_ring->enqueue; in prepare_transfer()
3357 num_trbs = DIV_ROUND_UP(len + (addr & (TRB_MAX_BUFF_SIZE - 1)), in count_trbs()
3367 return count_trbs(urb->transfer_dma, urb->transfer_buffer_length); in count_trbs_needed()
3375 full_len = urb->transfer_buffer_length; in count_sg_trbs_needed()
3377 for_each_sg(urb->sg, sg, urb->num_mapped_sgs, i) { in count_sg_trbs_needed()
3381 full_len -= len; in count_sg_trbs_needed()
3393 addr = (u64) (urb->transfer_dma + urb->iso_frame_desc[i].offset); in count_isoc_trbs_needed()
3394 len = urb->iso_frame_desc[i].length; in count_isoc_trbs_needed()
3401 if (unlikely(running_total != urb->transfer_buffer_length)) in check_trb_math()
3402 dev_err(&urb->dev->dev, "%s - ep %#x - Miscalculated tx length, " in check_trb_math()
3405 urb->ep->desc.bEndpointAddress, in check_trb_math()
3407 urb->transfer_buffer_length, in check_trb_math()
3408 urb->transfer_buffer_length); in check_trb_math()
3421 start_trb->field[3] |= cpu_to_le32(start_cycle); in giveback_first_trb()
3423 start_trb->field[3] &= cpu_to_le32(~TRB_CYCLE); in giveback_first_trb()
3433 xhci_interval = EP_INTERVAL_TO_UFRAMES(le32_to_cpu(ep_ctx->ep_info)); in check_interval()
3434 ep_interval = urb->interval; in check_interval()
3437 if (urb->dev->speed == USB_SPEED_LOW || in check_interval()
3438 urb->dev->speed == USB_SPEED_FULL) in check_interval()
3445 dev_dbg_ratelimited(&urb->dev->dev, in check_interval()
3449 urb->interval = xhci_interval; in check_interval()
3451 if (urb->dev->speed == USB_SPEED_LOW || in check_interval()
3452 urb->dev->speed == USB_SPEED_FULL) in check_interval()
3453 urb->interval /= 8; in check_interval()
3468 ep_ctx = xhci_get_ep_ctx(xhci, xhci->devs[slot_id]->out_ctx, ep_index); in xhci_queue_intr_tx()
3484 * TD size = total_packet_count - packets_transferred
3501 if (xhci->hci_version < 0x100 && !(xhci->quirks & XHCI_MTK_HOST)) in xhci_td_remainder()
3502 return ((td_total_len - transferred) >> 10); in xhci_td_remainder()
3504 /* One TRB with a zero-length data packet. */ in xhci_td_remainder()
3510 if ((xhci->quirks & XHCI_MTK_HOST) && (xhci->hci_version < 0x100)) in xhci_td_remainder()
3513 maxp = usb_endpoint_maxp(&urb->ep->desc); in xhci_td_remainder()
3517 return (total_packet_count - ((transferred + trb_buff_len) / maxp)); in xhci_td_remainder()
3524 struct device *dev = xhci_to_hcd(xhci)->self.sysdev; in xhci_align_td()
3530 max_pkt = usb_endpoint_maxp(&urb->ep->desc); in xhci_align_td()
3542 *trb_buff_len -= unalign; in xhci_align_td()
3552 new_buff_len = max_pkt - (enqd_len % max_pkt); in xhci_align_td()
3554 if (new_buff_len > (urb->transfer_buffer_length - enqd_len)) in xhci_align_td()
3555 new_buff_len = (urb->transfer_buffer_length - enqd_len); in xhci_align_td()
3559 if (urb->num_sgs) { in xhci_align_td()
3560 len = sg_pcopy_to_buffer(urb->sg, urb->num_sgs, in xhci_align_td()
3561 seg->bounce_buf, new_buff_len, enqd_len); in xhci_align_td()
3566 memcpy(seg->bounce_buf, urb->transfer_buffer + enqd_len, new_buff_len); in xhci_align_td()
3569 seg->bounce_dma = dma_map_single(dev, seg->bounce_buf, in xhci_align_td()
3572 seg->bounce_dma = dma_map_single(dev, seg->bounce_buf, in xhci_align_td()
3576 if (dma_mapping_error(dev, seg->bounce_dma)) { in xhci_align_td()
3582 seg->bounce_len = new_buff_len; in xhci_align_td()
3583 seg->bounce_offs = enqd_len; in xhci_align_td()
3590 /* This is very similar to what ehci-q.c qtd_fill() does */
3611 return -EINVAL; in xhci_queue_bulk_tx()
3613 full_len = urb->transfer_buffer_length; in xhci_queue_bulk_tx()
3615 if (urb->num_sgs && !(urb->transfer_flags & URB_DMA_MAP_SINGLE)) { in xhci_queue_bulk_tx()
3616 num_sgs = urb->num_mapped_sgs; in xhci_queue_bulk_tx()
3617 sg = urb->sg; in xhci_queue_bulk_tx()
3623 addr = (u64) urb->transfer_dma; in xhci_queue_bulk_tx()
3626 ret = prepare_transfer(xhci, xhci->devs[slot_id], in xhci_queue_bulk_tx()
3627 ep_index, urb->stream_id, in xhci_queue_bulk_tx()
3632 urb_priv = urb->hcpriv; in xhci_queue_bulk_tx()
3634 /* Deal with URB_ZERO_PACKET - need one more td/trb */ in xhci_queue_bulk_tx()
3635 if (urb->transfer_flags & URB_ZERO_PACKET && urb_priv->num_tds > 1) in xhci_queue_bulk_tx()
3638 td = &urb_priv->td[0]; in xhci_queue_bulk_tx()
3645 start_trb = &ring->enqueue->generic; in xhci_queue_bulk_tx()
3646 start_cycle = ring->cycle_state; in xhci_queue_bulk_tx()
3649 /* Queue the TRBs, even if they are zero-length */ in xhci_queue_bulk_tx()
3659 trb_buff_len = full_len - enqd_len; in xhci_queue_bulk_tx()
3667 field |= ring->cycle_state; in xhci_queue_bulk_tx()
3674 if (trb_is_link(ring->enqueue + 1)) { in xhci_queue_bulk_tx()
3677 ring->enq_seg)) { in xhci_queue_bulk_tx()
3678 send_addr = ring->enq_seg->bounce_dma; in xhci_queue_bulk_tx()
3680 td->bounce_seg = ring->enq_seg; in xhci_queue_bulk_tx()
3688 td->last_trb = ring->enqueue; in xhci_queue_bulk_tx()
3689 td->last_trb_seg = ring->enq_seg; in xhci_queue_bulk_tx()
3691 memcpy(&send_addr, urb->transfer_buffer, in xhci_queue_bulk_tx()
3715 td->num_trbs++; in xhci_queue_bulk_tx()
3721 --num_sgs; in xhci_queue_bulk_tx()
3722 sent_len -= block_len; in xhci_queue_bulk_tx()
3730 block_len -= sent_len; in xhci_queue_bulk_tx()
3735 ret = prepare_transfer(xhci, xhci->devs[slot_id], in xhci_queue_bulk_tx()
3736 ep_index, urb->stream_id, in xhci_queue_bulk_tx()
3738 urb_priv->td[1].last_trb = ring->enqueue; in xhci_queue_bulk_tx()
3739 urb_priv->td[1].last_trb_seg = ring->enq_seg; in xhci_queue_bulk_tx()
3740 field = TRB_TYPE(TRB_NORMAL) | ring->cycle_state | TRB_IOC; in xhci_queue_bulk_tx()
3742 urb_priv->td[1].num_trbs++; in xhci_queue_bulk_tx()
3746 giveback_first_trb(xhci, slot_id, ep_index, urb->stream_id, in xhci_queue_bulk_tx()
3751 /* Caller must have locked xhci->lock */
3767 return -EINVAL; in xhci_queue_ctrl_tx()
3773 if (!urb->setup_packet) in xhci_queue_ctrl_tx()
3774 return -EINVAL; in xhci_queue_ctrl_tx()
3779 * Don't need to check if we need additional event data and normal TRBs, in xhci_queue_ctrl_tx()
3783 if (urb->transfer_buffer_length > 0) in xhci_queue_ctrl_tx()
3785 ret = prepare_transfer(xhci, xhci->devs[slot_id], in xhci_queue_ctrl_tx()
3786 ep_index, urb->stream_id, in xhci_queue_ctrl_tx()
3791 urb_priv = urb->hcpriv; in xhci_queue_ctrl_tx()
3792 td = &urb_priv->td[0]; in xhci_queue_ctrl_tx()
3793 td->num_trbs = num_trbs; in xhci_queue_ctrl_tx()
3800 start_trb = &ep_ring->enqueue->generic; in xhci_queue_ctrl_tx()
3801 start_cycle = ep_ring->cycle_state; in xhci_queue_ctrl_tx()
3803 /* Queue setup TRB - see section 6.4.1.2.1 */ in xhci_queue_ctrl_tx()
3805 setup = (struct usb_ctrlrequest *) urb->setup_packet; in xhci_queue_ctrl_tx()
3812 if ((xhci->hci_version >= 0x100) || (xhci->quirks & XHCI_MTK_HOST)) { in xhci_queue_ctrl_tx()
3813 if (urb->transfer_buffer_length > 0) { in xhci_queue_ctrl_tx()
3814 if (setup->bRequestType & USB_DIR_IN) in xhci_queue_ctrl_tx()
3822 setup->bRequestType | setup->bRequest << 8 | le16_to_cpu(setup->wValue) << 16, in xhci_queue_ctrl_tx()
3823 le16_to_cpu(setup->wIndex) | le16_to_cpu(setup->wLength) << 16, in xhci_queue_ctrl_tx()
3835 if (urb->transfer_buffer_length > 0) { in xhci_queue_ctrl_tx()
3840 memcpy(&addr, urb->transfer_buffer, in xhci_queue_ctrl_tx()
3841 urb->transfer_buffer_length); in xhci_queue_ctrl_tx()
3845 addr = (u64) urb->transfer_dma; in xhci_queue_ctrl_tx()
3849 urb->transfer_buffer_length, in xhci_queue_ctrl_tx()
3850 urb->transfer_buffer_length, in xhci_queue_ctrl_tx()
3852 length_field = TRB_LEN(urb->transfer_buffer_length) | in xhci_queue_ctrl_tx()
3855 if (setup->bRequestType & USB_DIR_IN) in xhci_queue_ctrl_tx()
3861 field | ep_ring->cycle_state); in xhci_queue_ctrl_tx()
3865 td->last_trb = ep_ring->enqueue; in xhci_queue_ctrl_tx()
3866 td->last_trb_seg = ep_ring->enq_seg; in xhci_queue_ctrl_tx()
3868 /* Queue status TRB - see Table 7 and sections 4.11.2.2 and 6.4.1.2.3 */ in xhci_queue_ctrl_tx()
3870 if (urb->transfer_buffer_length > 0 && setup->bRequestType & USB_DIR_IN) in xhci_queue_ctrl_tx()
3879 field | TRB_IOC | TRB_TYPE(TRB_STATUS) | ep_ring->cycle_state); in xhci_queue_ctrl_tx()
3899 if (xhci->hci_version < 0x100 || urb->dev->speed < USB_SPEED_SUPER) in xhci_get_burst_count()
3902 max_burst = urb->ep->ss_ep_comp.bMaxBurst; in xhci_get_burst_count()
3903 return DIV_ROUND_UP(total_packet_count, max_burst + 1) - 1; in xhci_get_burst_count()
3920 if (xhci->hci_version < 0x100) in xhci_get_last_burst_packet_count()
3923 if (urb->dev->speed >= USB_SPEED_SUPER) { in xhci_get_last_burst_packet_count()
3925 max_burst = urb->ep->ss_ep_comp.bMaxBurst; in xhci_get_last_burst_packet_count()
3928 * number of packets, but the TLBPC field is zero-based. in xhci_get_last_burst_packet_count()
3932 return residue - 1; in xhci_get_last_burst_packet_count()
3936 return total_packet_count - 1; in xhci_get_last_burst_packet_count()
3952 if (urb->dev->speed == USB_SPEED_LOW || in xhci_get_isoc_frame_id()
3953 urb->dev->speed == USB_SPEED_FULL) in xhci_get_isoc_frame_id()
3954 start_frame = urb->start_frame + index * urb->interval; in xhci_get_isoc_frame_id()
3956 start_frame = (urb->start_frame + index * urb->interval) >> 3; in xhci_get_isoc_frame_id()
3966 ist = HCS_IST(xhci->hcs_params2) & 0x7; in xhci_get_isoc_frame_id()
3967 if (HCS_IST(xhci->hcs_params2) & (1 << 3)) in xhci_get_isoc_frame_id()
3983 current_frame_id = readl(&xhci->run_regs->microframe_index); in xhci_get_isoc_frame_id()
3992 __func__, index, readl(&xhci->run_regs->microframe_index), in xhci_get_isoc_frame_id()
3998 ret = -EINVAL; in xhci_get_isoc_frame_id()
4002 ret = -EINVAL; in xhci_get_isoc_frame_id()
4004 ret = -EINVAL; in xhci_get_isoc_frame_id()
4008 if (ret == -EINVAL || start_frame == start_frame_id) { in xhci_get_isoc_frame_id()
4010 if (urb->dev->speed == USB_SPEED_LOW || in xhci_get_isoc_frame_id()
4011 urb->dev->speed == USB_SPEED_FULL) in xhci_get_isoc_frame_id()
4012 urb->start_frame = start_frame; in xhci_get_isoc_frame_id()
4014 urb->start_frame = start_frame << 3; in xhci_get_isoc_frame_id()
4033 if (xhci->hci_version < 0x100) in trb_block_event_intr()
4036 if (i == num_tds - 1) in trb_block_event_intr()
4042 if (i && xhci->quirks & XHCI_AVOID_BEI) in trb_block_event_intr()
4043 return !!(i % xhci->isoc_bei_interval); in trb_block_event_intr()
4067 xep = &xhci->devs[slot_id]->eps[ep_index]; in xhci_queue_isoc_tx()
4068 ep_ring = xhci->devs[slot_id]->eps[ep_index].ring; in xhci_queue_isoc_tx()
4070 num_tds = urb->number_of_packets; in xhci_queue_isoc_tx()
4073 return -EINVAL; in xhci_queue_isoc_tx()
4075 start_addr = (u64) urb->transfer_dma; in xhci_queue_isoc_tx()
4076 start_trb = &ep_ring->enqueue->generic; in xhci_queue_isoc_tx()
4077 start_cycle = ep_ring->cycle_state; in xhci_queue_isoc_tx()
4079 urb_priv = urb->hcpriv; in xhci_queue_isoc_tx()
4080 /* Queue the TRBs for each TD, even if they are zero-length */ in xhci_queue_isoc_tx()
4088 addr = start_addr + urb->iso_frame_desc[i].offset; in xhci_queue_isoc_tx()
4089 td_len = urb->iso_frame_desc[i].length; in xhci_queue_isoc_tx()
4091 max_pkt = usb_endpoint_maxp(&urb->ep->desc); in xhci_queue_isoc_tx()
4094 /* A zero-length transfer still involves at least one packet. */ in xhci_queue_isoc_tx()
4103 ret = prepare_transfer(xhci, xhci->devs[slot_id], ep_index, in xhci_queue_isoc_tx()
4104 urb->stream_id, trbs_per_td, urb, i, mem_flags); in xhci_queue_isoc_tx()
4110 td = &urb_priv->td[i]; in xhci_queue_isoc_tx()
4111 td->num_trbs = trbs_per_td; in xhci_queue_isoc_tx()
4114 if (!(urb->transfer_flags & URB_ISO_ASAP) && in xhci_queue_isoc_tx()
4115 HCC_CFC(xhci->hcc_params)) { in xhci_queue_isoc_tx()
4128 (i ? ep_ring->cycle_state : !start_cycle); in xhci_queue_isoc_tx()
4131 if (!xep->use_extended_tbc) in xhci_queue_isoc_tx()
4141 ep_ring->cycle_state; in xhci_queue_isoc_tx()
4148 if (j < trbs_per_td - 1) { in xhci_queue_isoc_tx()
4153 td->last_trb = ep_ring->enqueue; in xhci_queue_isoc_tx()
4154 td->last_trb_seg = ep_ring->enq_seg; in xhci_queue_isoc_tx()
4173 if (first_trb && xep->use_extended_tbc) in xhci_queue_isoc_tx()
4187 td_remain_len -= trb_buff_len; in xhci_queue_isoc_tx()
4193 ret = -EINVAL; in xhci_queue_isoc_tx()
4199 if (HCC_CFC(xhci->hcc_params)) in xhci_queue_isoc_tx()
4200 xep->next_frame_id = urb->start_frame + num_tds * urb->interval; in xhci_queue_isoc_tx()
4202 if (xhci_to_hcd(xhci)->self.bandwidth_isoc_reqs == 0) { in xhci_queue_isoc_tx()
4203 if (xhci->quirks & XHCI_AMD_PLL_FIX) in xhci_queue_isoc_tx()
4206 xhci_to_hcd(xhci)->self.bandwidth_isoc_reqs++; in xhci_queue_isoc_tx()
4208 giveback_first_trb(xhci, slot_id, ep_index, urb->stream_id, in xhci_queue_isoc_tx()
4214 for (i--; i >= 0; i--) in xhci_queue_isoc_tx()
4215 list_del_init(&urb_priv->td[i].td_list); in xhci_queue_isoc_tx()
4218 * into No-ops with a software-owned cycle bit. That way the hardware in xhci_queue_isoc_tx()
4220 * overwrite them. td->first_trb and td->start_seg are already set. in xhci_queue_isoc_tx()
4222 urb_priv->td[0].last_trb = ep_ring->enqueue; in xhci_queue_isoc_tx()
4224 td_to_noop(xhci, ep_ring, &urb_priv->td[0], true); in xhci_queue_isoc_tx()
4227 ep_ring->enqueue = urb_priv->td[0].first_trb; in xhci_queue_isoc_tx()
4228 ep_ring->enq_seg = urb_priv->td[0].start_seg; in xhci_queue_isoc_tx()
4229 ep_ring->cycle_state = start_cycle; in xhci_queue_isoc_tx()
4230 usb_hcd_unlink_urb_from_ep(bus_to_hcd(urb->dev->bus), urb); in xhci_queue_isoc_tx()
4238 * update urb->start_frame if URB_ISO_ASAP is set in transfer_flags or
4253 xdev = xhci->devs[slot_id]; in xhci_queue_isoc_tx_prepare()
4254 xep = &xhci->devs[slot_id]->eps[ep_index]; in xhci_queue_isoc_tx_prepare()
4255 ep_ring = xdev->eps[ep_index].ring; in xhci_queue_isoc_tx_prepare()
4256 ep_ctx = xhci_get_ep_ctx(xhci, xdev->out_ctx, ep_index); in xhci_queue_isoc_tx_prepare()
4259 num_tds = urb->number_of_packets; in xhci_queue_isoc_tx_prepare()
4277 /* Calculate the start frame and put it in urb->start_frame. */ in xhci_queue_isoc_tx_prepare()
4278 if (HCC_CFC(xhci->hcc_params) && !list_empty(&ep_ring->td_list)) { in xhci_queue_isoc_tx_prepare()
4280 urb->start_frame = xep->next_frame_id; in xhci_queue_isoc_tx_prepare()
4285 start_frame = readl(&xhci->run_regs->microframe_index); in xhci_queue_isoc_tx_prepare()
4291 ist = HCS_IST(xhci->hcs_params2) & 0x7; in xhci_queue_isoc_tx_prepare()
4292 if (HCS_IST(xhci->hcs_params2) & (1 << 3)) in xhci_queue_isoc_tx_prepare()
4301 if (urb->dev->speed == USB_SPEED_LOW || in xhci_queue_isoc_tx_prepare()
4302 urb->dev->speed == USB_SPEED_FULL) { in xhci_queue_isoc_tx_prepare()
4303 start_frame = roundup(start_frame, urb->interval << 3); in xhci_queue_isoc_tx_prepare()
4304 urb->start_frame = start_frame >> 3; in xhci_queue_isoc_tx_prepare()
4306 start_frame = roundup(start_frame, urb->interval); in xhci_queue_isoc_tx_prepare()
4307 urb->start_frame = start_frame; in xhci_queue_isoc_tx_prepare()
4322 * Don't decrement xhci->cmd_ring_reserved_trbs after we've queued the TRB
4329 int reserved_trbs = xhci->cmd_ring_reserved_trbs; in queue_command()
4332 if ((xhci->xhc_state & XHCI_STATE_DYING) || in queue_command()
4333 (xhci->xhc_state & XHCI_STATE_HALTED)) { in queue_command()
4335 return -ESHUTDOWN; in queue_command()
4341 ret = prepare_ring(xhci, xhci->cmd_ring, EP_STATE_RUNNING, in queue_command()
4351 cmd->command_trb = xhci->cmd_ring->enqueue; in queue_command()
4354 if (list_empty(&xhci->cmd_list)) { in queue_command()
4355 xhci->current_cmd = cmd; in queue_command()
4359 list_add_tail(&cmd->cmd_list, &xhci->cmd_list); in queue_command()
4361 queue_trb(xhci, xhci->cmd_ring, false, field1, field2, field3, in queue_command()
4362 field4 | xhci->cmd_ring->cycle_state); in queue_command()