mirrors/qemu
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

uhci: No need to handle async completion of isoc packets

Browse Source 
No devices ever return async for isoc endpoints and the core
already enforces this.

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 18:31:05 +02:00 committed by Gerd Hoffmann
parent aaac74343d
commit 5b352ed537
1 changed files with 3 additions and 26 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

23
hw/usb/hcd-uhci.c
View File

@ -101,7 +101,6 @@ struct UHCIAsync {
UHCIQueue *queue;
QTAILQ_ENTRY(UHCIAsync) next;
uint32_t td;
uint8_t isoc;
uint8_t done;
};
@ -849,7 +848,6 @@ static int uhci_handle_td(UHCIState *s, uint32_t addr, UHCI_TD *td,
* for initial isochronous requests
*/
async->queue->valid = 32;
async->isoc = td->ctrl & TD_CTRL_IOS;
max_len = ((td->token >> 21) + 1) & 0x7ff;
pid = td->token & 0xff;
@ -911,31 +909,10 @@ static void uhci_async_complete(USBPort *port, USBPacket *packet)
return;
}
if (async->isoc) {
UHCI_TD td;
uint32_t link = async->td;
uint32_t int_mask = 0, val;
pci_dma_read(&s->dev, link & ~0xf, &td, sizeof(td));
le32_to_cpus(&td.link);
le32_to_cpus(&td.ctrl);
le32_to_cpus(&td.token);
le32_to_cpus(&td.buffer);
uhci_async_unlink(async);
uhci_complete_td(s, &td, async, &int_mask);
s->pending_int_mask |= int_mask;
/* update the status bits of the TD */
val = cpu_to_le32(td.ctrl);
pci_dma_write(&s->dev, (link & ~0xf) + 4, &val, sizeof(val));
uhci_async_free(async);
} else {
async->done = 1;
if (s->frame_bytes < s->frame_bandwidth) {
qemu_bh_schedule(s->bh);
}
}
}
static int is_valid(uint32_t link)