1 files changed, 63 insertions, 0 deletions
diff --git a/hw/nubus/mac-nubus-bridge.c b/hw/nubus/mac-nubus-bridge.c
new file mode 100644
index 00000000..a0da5a8b
--- /dev/null
+++ b/hw/nubus/mac-nubus-bridge.c
@@ -0,0 +1,63 @@
+/*
+ * QEMU Macintosh Nubus
+ *
+ * Copyright (c) 2013-2018 Laurent Vivier <laurent@vivier.eu>
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2 or later.
+ * See the COPYING file in the top-level directory.
+ *
+ */
+
+#include "qemu/osdep.h"
+#include "hw/sysbus.h"
+#include "hw/nubus/mac-nubus-bridge.h"
+
+
+static void mac_nubus_bridge_init(Object *obj)
+{
+    MacNubusBridge *s = MAC_NUBUS_BRIDGE(obj);
+    NubusBridge *nb = NUBUS_BRIDGE(obj);
+    SysBusDevice *sbd = SYS_BUS_DEVICE(obj);
+    NubusBus *bus = &nb->bus;
+
+    /* Macintosh only has slots 0x9 to 0xe available */
+    bus->slot_available_mask = MAKE_64BIT_MASK(MAC_NUBUS_FIRST_SLOT,
+                                               MAC_NUBUS_SLOT_NB);
+
+    /* Aliases for slots 0x9 to 0xe */
+    memory_region_init_alias(&s->super_slot_alias, obj, "super-slot-alias",
+                             &bus->nubus_mr,
+                             MAC_NUBUS_FIRST_SLOT * NUBUS_SUPER_SLOT_SIZE,
+                             MAC_NUBUS_SLOT_NB * NUBUS_SUPER_SLOT_SIZE);
+
+    memory_region_init_alias(&s->slot_alias, obj, "slot-alias",
+                             &bus->nubus_mr,
+                             NUBUS_SLOT_BASE +
+                             MAC_NUBUS_FIRST_SLOT * NUBUS_SLOT_SIZE,
+                             MAC_NUBUS_SLOT_NB * NUBUS_SLOT_SIZE);
+
+    sysbus_init_mmio(sbd, &s->super_slot_alias);
+    sysbus_init_mmio(sbd, &s->slot_alias);
+}
+
+static void mac_nubus_bridge_class_init(ObjectClass *klass, void *data)
+{
+    DeviceClass *dc = DEVICE_CLASS(klass);
+
+    dc->desc = "Nubus bridge";
+}
+
+static const TypeInfo mac_nubus_bridge_info = {
+    .name          = TYPE_MAC_NUBUS_BRIDGE,
+    .parent        = TYPE_NUBUS_BRIDGE,
+    .instance_init = mac_nubus_bridge_init,
+    .instance_size = sizeof(MacNubusBridge),
+    .class_init    = mac_nubus_bridge_class_init,
+};
+
+static void mac_nubus_bridge_register_types(void)
+{
+    type_register_static(&mac_nubus_bridge_info);
+}
+
+type_init(mac_nubus_bridge_register_types)