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mac-nubus-bridge.c (1998B)

      1 /*
      2  * QEMU Macintosh Nubus
      3  *
      4  * Copyright (c) 2013-2018 Laurent Vivier <laurent@vivier.eu>
      5  *
      6  * This work is licensed under the terms of the GNU GPL, version 2 or later.
      7  * See the COPYING file in the top-level directory.
      8  *
      9  */
     10 
     11 #include "qemu/osdep.h"
     12 #include "hw/sysbus.h"
     13 #include "hw/nubus/mac-nubus-bridge.h"
     14 
     15 
     16 static void mac_nubus_bridge_init(Object *obj)
     17 {
     18     MacNubusBridge *s = MAC_NUBUS_BRIDGE(obj);
     19     NubusBridge *nb = NUBUS_BRIDGE(obj);
     20     SysBusDevice *sbd = SYS_BUS_DEVICE(obj);
     21     NubusBus *bus = &nb->bus;
     22 
     23     /* Macintosh only has slots 0x9 to 0xe available */
     24     bus->slot_available_mask = MAKE_64BIT_MASK(MAC_NUBUS_FIRST_SLOT,
     25                                                MAC_NUBUS_SLOT_NB);
     26 
     27     /* Aliases for slots 0x9 to 0xe */
     28     memory_region_init_alias(&s->super_slot_alias, obj, "super-slot-alias",
     29                              &bus->nubus_mr,
     30                              MAC_NUBUS_FIRST_SLOT * NUBUS_SUPER_SLOT_SIZE,
     31                              MAC_NUBUS_SLOT_NB * NUBUS_SUPER_SLOT_SIZE);
     32 
     33     memory_region_init_alias(&s->slot_alias, obj, "slot-alias",
     34                              &bus->nubus_mr,
     35                              NUBUS_SLOT_BASE +
     36                              MAC_NUBUS_FIRST_SLOT * NUBUS_SLOT_SIZE,
     37                              MAC_NUBUS_SLOT_NB * NUBUS_SLOT_SIZE);
     38 
     39     sysbus_init_mmio(sbd, &s->super_slot_alias);
     40     sysbus_init_mmio(sbd, &s->slot_alias);
     41 }
     42 
     43 static void mac_nubus_bridge_class_init(ObjectClass *klass, void *data)
     44 {
     45     DeviceClass *dc = DEVICE_CLASS(klass);
     46 
     47     dc->desc = "Nubus bridge";
     48 }
     49 
     50 static const TypeInfo mac_nubus_bridge_info = {
     51     .name          = TYPE_MAC_NUBUS_BRIDGE,
     52     .parent        = TYPE_NUBUS_BRIDGE,
     53     .instance_init = mac_nubus_bridge_init,
     54     .instance_size = sizeof(MacNubusBridge),
     55     .class_init    = mac_nubus_bridge_class_init,
     56 };
     57 
     58 static void mac_nubus_bridge_register_types(void)
     59 {
     60     type_register_static(&mac_nubus_bridge_info);
     61 }
     62 
     63 type_init(mac_nubus_bridge_register_types)