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ehci: Get rid of packet tbytes field 

This field is used in some places to track the tbytes field of the token, but
in other places the field is used directly, use it directly everywhere for
consistency.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
master
Hans de Goede 2012-10-24 18:13:59 +02:00 committed by Gerd Hoffmann
parent 7c2eaca4ef
commit 549a3c3d96
1 changed files with 9 additions and 11 deletions
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20
hw/usb/hcd-ehci.c
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@ -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");