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usb: Add buffer alignment checks

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EDCI/EHCI controllers only allow 0x1000 aligned buffers.
So reply with a specific error type instead of a EP xfer error.
This commit is contained in:
CTCaer
2020-11-26 01:54:10 +02:00
parent bd4517abab
commit caae685fab
3 changed files with 15 additions and 0 deletions
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4
bdk/usb/usb_gadget_ums.c
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@@ -316,6 +316,8 @@ static void _ums_transfer_start(usbd_gadget_ums_t *ums, bulk_ctxt_t *bulk_ctxt,
ums->set_text(ums->label, "#C7EA46 Status:# Error EP IN");
ums_flush_endpoint(bulk_ctxt->bulk_in);
}
else if (bulk_ctxt->bulk_in_status == USB2_ERROR_XFER_NOT_ALIGNED)
ums->set_text(ums->label, "C7EA46 Status:# EP IN Buffer not aligned!");
if (sync)
bulk_ctxt->bulk_in_buf_state = BUF_STATE_EMPTY;
@@ -331,6 +333,8 @@ static void _ums_transfer_start(usbd_gadget_ums_t *ums, bulk_ctxt_t *bulk_ctxt,
ums->set_text(ums->label, "#C7EA46 Status:# Error EP OUT");
ums_flush_endpoint(bulk_ctxt->bulk_out);
}
else if (bulk_ctxt->bulk_out_status == USB2_ERROR_XFER_NOT_ALIGNED)
ums->set_text(ums->label, "C7EA46 Status:# EP OUT Buffer not aligned!");
if (sync)
bulk_ctxt->bulk_out_buf_state = BUF_STATE_FULL;