diff options
| -rw-r--r-- | hw/usb-uhci.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/hw/usb-uhci.c b/hw/usb-uhci.c index f902d4615a..10b3fa6fd7 100644 --- a/hw/usb-uhci.c +++ b/hw/usb-uhci.c @@ -174,6 +174,9 @@ static void uhci_ioport_writew(void *opaque, uint32_t addr, uint32_t val) if ((val & UHCI_CMD_RS) && !(s->cmd & UHCI_CMD_RS)) { /* start frame processing */ qemu_mod_timer(s->frame_timer, qemu_get_clock(vm_clock)); + s->status &= ~UHCI_STS_HCHALTED; + } else if (!(val & UHCI_CMD_RS) && !(s->cmd & UHCI_CMD_RS)) { + s->status |= UHCI_STS_HCHALTED; } if (val & UHCI_CMD_GRESET) { UHCIPort *port; @@ -528,6 +531,8 @@ static void uhci_frame_timer(void *opaque) if (!(s->cmd & UHCI_CMD_RS)) { qemu_del_timer(s->frame_timer); + /* set hchalted bit in status - UHCI11D 2.1.2 */ + s->status |= UHCI_STS_HCHALTED; return; } frame_addr = s->fl_base_addr + ((s->frnum & 0x3ff) << 2); |