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[Qemu-devel] [PATCH 1/2] When the XHCI host controller is switched to th
From: |
Sebastian Bauer |
Subject: |
[Qemu-devel] [PATCH 1/2] When the XHCI host controller is switched to the running mode, set the ccs bit for each port, to which a device is already attached. |
Date: |
Fri, 26 Oct 2012 10:29:07 +0200 |
---
hw/usb/hcd-xhci.c | 25 ++++++++++++++++++++-----
1 file changed, 20 insertions(+), 5 deletions(-)
diff --git a/hw/usb/hcd-xhci.c b/hw/usb/hcd-xhci.c
index 37b3dbb..4c81dcc 100644
--- a/hw/usb/hcd-xhci.c
+++ b/hw/usb/hcd-xhci.c
@@ -990,10 +990,29 @@ static void xhci_er_reset(XHCIState *xhci, int v)
v, intr->er_start, intr->er_size);
}
+static void xhci_set_port_csc(XHCIState* xhci, XHCIPort* port, int set)
+{
+ port->portsc |= PORTSC_CSC;
+ XHCIEvent ev = { ER_PORT_STATUS_CHANGE, CC_SUCCESS, port->portnr << 24 };
+ xhci_event(xhci, &ev, 0);
+ DPRINTF("xhci: port change event for port %d\n", port->portnr);
+}
+
static void xhci_run(XHCIState *xhci)
{
+ int i;
+
trace_usb_xhci_run();
xhci->usbsts &= ~USBSTS_HCH;
+
+ for (i=0;i<MAXPORTS;i++) {
+ if (xhci->ports[i].uport) {
+ if (xhci->ports[i].portsc & PORTSC_CCS) {
+ xhci_set_port_csc(xhci,&xhci->ports[i],1);
+ }
+ }
+ }
+
xhci->mfindex_start = qemu_get_clock_ns(vm_clock);
}
@@ -2307,11 +2326,7 @@ static void xhci_update_port(XHCIState *xhci, XHCIPort
*port, int is_detach)
}
if (xhci_running(xhci)) {
- port->portsc |= PORTSC_CSC;
- XHCIEvent ev = { ER_PORT_STATUS_CHANGE, CC_SUCCESS,
- port->portnr << 24};
- xhci_event(xhci, &ev, 0);
- DPRINTF("xhci: port change event for port %d\n", port->portnr);
+ xhci_set_port_csc(xhci, port, 1);
}
}
--
1.7.10.4