diff options
| -rw-r--r-- | hw/usb/hcd-ehci.c | 20 |
1 files changed, 9 insertions, 11 deletions
diff --git a/hw/usb/hcd-ehci.c b/hw/usb/hcd-ehci.c index 6c65a734c8..82f4dbd15a 100644 --- a/hw/usb/hcd-ehci.c +++ b/hw/usb/hcd-ehci.c @@ -362,7 +362,6 @@ struct EHCIPacket { USBPacket packet; QEMUSGList sgl; int pid; - uint32_t tbytes; enum async_state async; int usb_status; }; @@ -1505,15 +1504,16 @@ static void ehci_execute_complete(EHCIQueue *q) } } else { // TODO check 4.12 for splits + uint32_t tbytes = get_field(q->qh.token, QTD_TOKEN_TBYTES); - if (p->tbytes && p->pid == USB_TOKEN_IN) { - p->tbytes -= p->usb_status; + if (tbytes && p->pid == USB_TOKEN_IN) { + tbytes -= p->usb_status; } else { - p->tbytes = 0; + tbytes = 0; } - DPRINTF("updating tbytes to %d\n", p->tbytes); - set_field(&q->qh.token, p->tbytes, QTD_TOKEN_TBYTES); + DPRINTF("updating tbytes to %d\n", tbytes); + set_field(&q->qh.token, tbytes, QTD_TOKEN_TBYTES); } ehci_finish_transfer(q, p->usb_status); usb_packet_unmap(&p->packet, &p->sgl); @@ -1544,8 +1544,7 @@ static int ehci_execute(EHCIPacket *p, const char *action) return USB_RET_PROCERR; } - p->tbytes = (p->qtd.token & QTD_TOKEN_TBYTES_MASK) >> QTD_TOKEN_TBYTES_SH; - if (p->tbytes > BUFF_SIZE) { + if (get_field(p->qtd.token, QTD_TOKEN_TBYTES) > BUFF_SIZE) { ehci_trace_guest_bug(p->queue->ehci, "guest requested more bytes than allowed"); return USB_RET_PROCERR; @@ -1582,10 +1581,9 @@ static int ehci_execute(EHCIPacket *p, const char *action) trace_usb_ehci_packet_action(p->queue, p, action); ret = usb_handle_packet(p->queue->dev, &p->packet); - DPRINTF("submit: qh %x next %x qtd %x pid %x len %zd " - "(total %d) endp %x ret %d\n", + DPRINTF("submit: qh %x next %x qtd %x pid %x len %zd endp %x ret %d\n", q->qhaddr, q->qh.next, q->qtdaddr, q->pid, - q->packet.iov.size, q->tbytes, endp, ret); + q->packet.iov.size, endp, ret); if (ret > BUFF_SIZE) { fprintf(stderr, "ret from usb_handle_packet > BUFF_SIZE\n"); |