[PATCH v3 03/10] usb/xhci: add xhci_sysbus_build_aml() helper

[Gerd Hoffmann <kraxel@redhat.com>]

The helper generates an acpi dsdt device entry
for the xhci sysbus device.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
---
 include/hw/usb/xhci.h    |  2 ++
 hw/usb/hcd-xhci-sysbus.c | 15 +++++++++++++++
 2 files changed, 17 insertions(+)

diff --git a/include/hw/usb/xhci.h b/include/hw/usb/xhci.h
index dc0c29930dcc..5c90e1373e55 100644
--- a/include/hw/usb/xhci.h
+++ b/include/hw/usb/xhci.h
@@ -16,4 +16,6 @@
 /* must be power of 2 */
 #define XHCI_LEN_REGS 0x4000
 
+void xhci_sysbus_build_aml(Aml *scope, uint32_t mmio, unsigned int irq);
+
 #endif
diff --git a/hw/usb/hcd-xhci-sysbus.c b/hw/usb/hcd-xhci-sysbus.c
index 570618467356..29185d2261fb 100644
--- a/hw/usb/hcd-xhci-sysbus.c
+++ b/hw/usb/hcd-xhci-sysbus.c
@@ -13,6 +13,7 @@
 #include "trace.h"
 #include "qapi/error.h"
 #include "hcd-xhci-sysbus.h"
+#include "hw/acpi/aml-build.h"
 #include "hw/irq.h"
 
 static void xhci_sysbus_intr_raise(XHCIState *xhci, int n, bool level)
@@ -68,6 +69,20 @@ static void xhci_sysbus_instance_init(Object *obj)
     s->xhci.intr_raise = xhci_sysbus_intr_raise;
 }
 
+void xhci_sysbus_build_aml(Aml *scope, uint32_t mmio, unsigned int irq)
+{
+    Aml *dev = aml_device("XHCI");
+    Aml *crs = aml_resource_template();
+
+    aml_append(crs, aml_memory32_fixed(mmio, XHCI_LEN_REGS, AML_READ_WRITE));
+    aml_append(crs, aml_interrupt(AML_CONSUMER, AML_LEVEL, AML_ACTIVE_HIGH,
+                                  AML_EXCLUSIVE, &irq, 1));
+
+    aml_append(dev, aml_name_decl("_HID", aml_eisaid("PNP0D10")));
+    aml_append(dev, aml_name_decl("_CRS", crs));
+    aml_append(scope, dev);
+}
+
 static Property xhci_sysbus_props[] = {
     DEFINE_PROP_UINT32("intrs", XHCISysbusState, xhci.numintrs, XHCI_MAXINTRS),
     DEFINE_PROP_UINT32("slots", XHCISysbusState, xhci.numslots, XHCI_MAXSLOTS),
-- 
2.27.0