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fix a bug for hub split transaction

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This commit is contained in:
yangkai
2011-05-31 16:17:15 +08:00
parent 3e92242a32
commit fd4f68ca92
1 changed files with 12 additions and 13 deletions
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25
drivers/usb/dwc_otg/dwc_otg_hcd_intr.c
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@@ -196,22 +196,21 @@ int32_t dwc_otg_hcd_handle_sof_intr (dwc_otg_hcd_t *_hcd)
* fix bug for alcro hub
* do not send csplit after start_split_frame+4
*/
qtd = list_entry(qh->qtd_list.next, dwc_otg_qtd_t, qtd_list_entry);
if((qh->do_split)&&dwc_frame_num_gt(_hcd->frame_number,
dwc_frame_num_inc(qh->start_split_frame, 4)))
dwc_frame_num_inc(qh->start_split_frame, 4))&&(qtd->complete_split))
{
qtd = list_entry(qh->qtd_list.next, dwc_otg_qtd_t, qtd_list_entry);
if ((qh->do_split) &&(qtd->complete_split))
{
qtd->complete_split = 0;
qh->sched_frame = dwc_frame_num_inc(qh->start_split_frame,
qh->interval);
if (dwc_frame_num_le(qh->sched_frame, _hcd->frame_number)) {
qh->sched_frame = _hcd->frame_number;
}
qh->sched_frame |= 0x7;
qh->start_split_frame = qh->sched_frame;
DWC_PRINT("frame_number 0x%x, start 0x%x, complete: %x",
_hcd->frame_number, qh->start_split_frame, qtd->complete_split);
qtd->complete_split = 0;
qh->sched_frame = dwc_frame_num_inc(qh->start_split_frame,
qh->interval);
if (dwc_frame_num_le(qh->sched_frame, _hcd->frame_number)) {
qh->sched_frame = _hcd->frame_number;
}
qh->sched_frame |= 0x7;
qh->start_split_frame = qh->sched_frame;
}
else
{