uhci: make bandwidth tunable
Add a property for the uhci bandwidth. Can be used to make uhci emulation run faster than real hardware. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
This commit is contained in:
parent
9a16c5950d
commit
40141d12de
|
@ -133,6 +133,7 @@ struct UHCIState {
|
||||||
QEMUTimer *frame_timer;
|
QEMUTimer *frame_timer;
|
||||||
QEMUBH *bh;
|
QEMUBH *bh;
|
||||||
uint32_t frame_bytes;
|
uint32_t frame_bytes;
|
||||||
|
uint32_t frame_bandwidth;
|
||||||
UHCIPort ports[NB_PORTS];
|
UHCIPort ports[NB_PORTS];
|
||||||
|
|
||||||
/* Interrupts that should be raised at the end of the current frame. */
|
/* Interrupts that should be raised at the end of the current frame. */
|
||||||
|
@ -908,7 +909,7 @@ static void uhci_async_complete(USBPort *port, USBPacket *packet)
|
||||||
uhci_async_free(async);
|
uhci_async_free(async);
|
||||||
} else {
|
} else {
|
||||||
async->done = 1;
|
async->done = 1;
|
||||||
if (s->frame_bytes < 1280) {
|
if (s->frame_bytes < s->frame_bandwidth) {
|
||||||
qemu_bh_schedule(s->bh);
|
qemu_bh_schedule(s->bh);
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
@ -1007,7 +1008,7 @@ static void uhci_process_frame(UHCIState *s)
|
||||||
qhdb_reset(&qhdb);
|
qhdb_reset(&qhdb);
|
||||||
|
|
||||||
for (cnt = FRAME_MAX_LOOPS; is_valid(link) && cnt; cnt--) {
|
for (cnt = FRAME_MAX_LOOPS; is_valid(link) && cnt; cnt--) {
|
||||||
if (s->frame_bytes >= 1280) {
|
if (s->frame_bytes >= s->frame_bandwidth) {
|
||||||
/* We've reached the usb 1.1 bandwidth, which is
|
/* We've reached the usb 1.1 bandwidth, which is
|
||||||
1280 bytes/frame, stop processing */
|
1280 bytes/frame, stop processing */
|
||||||
trace_usb_uhci_frame_stop_bandwidth();
|
trace_usb_uhci_frame_stop_bandwidth();
|
||||||
|
@ -1258,6 +1259,7 @@ static int usb_uhci_exit(PCIDevice *dev)
|
||||||
static Property uhci_properties[] = {
|
static Property uhci_properties[] = {
|
||||||
DEFINE_PROP_STRING("masterbus", UHCIState, masterbus),
|
DEFINE_PROP_STRING("masterbus", UHCIState, masterbus),
|
||||||
DEFINE_PROP_UINT32("firstport", UHCIState, firstport, 0),
|
DEFINE_PROP_UINT32("firstport", UHCIState, firstport, 0),
|
||||||
|
DEFINE_PROP_UINT32("bandwidth", UHCIState, frame_bandwidth, 1280),
|
||||||
DEFINE_PROP_END_OF_LIST(),
|
DEFINE_PROP_END_OF_LIST(),
|
||||||
};
|
};
|
||||||
|
|
||||||
|
|
Loading…
Reference in a new issue