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uhci: Use only one queue for ctrl endpoints 

ctrl endpoints use different pids for different phases of a control
transfer, this patch makes us use only one queue for a ctrl ep, rather
then 3.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
This commit is contained in:
Hans de Goede 2012-10-24 18:31:20 +02:00 committed by Gerd Hoffmann
parent 8928c9c43d
commit 6fe30910ab
1 changed files with 7 additions and 2 deletions

9
hw/usb/hcd-uhci.c
View File

@ -167,8 +167,13 @@ static void uhci_queue_fill(UHCIQueue *q, UHCI_TD *td);
static inline int32_t uhci_queue_token(UHCI_TD *td)
{
/* covers ep, dev, pid -> identifies the endpoint */
return td->token & 0x7ffff;
if ((td->token & (0xf << 15)) == 0) {
/* ctrl ep, cover ep and dev, not pid! */
return td->token & 0x7ff00;
} else {
/* covers ep, dev, pid -> identifies the endpoint */
return td->token & 0x7ffff;
}
}
static UHCIQueue *uhci_queue_new(UHCIState *s, uint32_t qh_addr, UHCI_TD *td,