include/hw/nubus/nubus.h

   1 /*
   2  * Copyright (c) 2013-2018 Laurent Vivier <laurent@vivier.eu>
   3  *
   4  * This work is licensed under the terms of the GNU GPL, version 2 or later.
   5  * See the COPYING file in the top-level directory.
   6  *
   7  */
   8
   9 #ifndef HW_NUBUS_NUBUS_H
  10 #define HW_NUBUS_NUBUS_H
  11
  12 #include "hw/qdev-properties.h"
  13 #include "hw/sysbus.h"
  14 #include "exec/address-spaces.h"
  15 #include "qom/object.h"
  16 #include "qemu/units.h"
  17
  18 #define NUBUS_SUPER_SLOT_SIZE 0x10000000U
  19 #define NUBUS_SUPER_SLOT_NB   0xe
  20
  21 #define NUBUS_SLOT_BASE       (NUBUS_SUPER_SLOT_SIZE * \
  22                                (NUBUS_SUPER_SLOT_NB + 1))
  23
  24 #define NUBUS_SLOT_SIZE       0x01000000
  25 #define NUBUS_FIRST_SLOT      0x0
  26 #define NUBUS_LAST_SLOT       0xf
  27 #define NUBUS_SLOT_NB         (NUBUS_LAST_SLOT - NUBUS_FIRST_SLOT + 1)
  28
  29 #define NUBUS_IRQS            16
  30
  31 #define TYPE_NUBUS_DEVICE "nubus-device"
  32 OBJECT_DECLARE_SIMPLE_TYPE(NubusDevice, NUBUS_DEVICE)
  33
  34 #define TYPE_NUBUS_BUS "nubus-bus"
  35 OBJECT_DECLARE_SIMPLE_TYPE(NubusBus, NUBUS_BUS)
  36
  37 #define TYPE_NUBUS_BRIDGE "nubus-bridge"
  38 OBJECT_DECLARE_SIMPLE_TYPE(NubusBridge, NUBUS_BRIDGE);
  39
  40 struct NubusBus {
  41     BusState qbus;
  42
  43     AddressSpace nubus_as;
  44     MemoryRegion nubus_mr;
  45
  46     MemoryRegion super_slot_io;
  47     MemoryRegion slot_io;
  48
  49     uint16_t slot_available_mask;
  50
  51     qemu_irq irqs[NUBUS_IRQS];
  52 };
  53
  54 #define NUBUS_DECL_ROM_MAX_SIZE    (1 * MiB)
  55
  56 struct NubusDevice {
  57     DeviceState qdev;
  58
  59     int32_t slot;
  60     MemoryRegion super_slot_mem;
  61     MemoryRegion slot_mem;
  62
  63     char *romfile;
  64     MemoryRegion decl_rom;
  65 };
  66
  67 void nubus_set_irq(NubusDevice *nd, int level);
  68
  69 struct NubusBridge {
  70     SysBusDevice parent_obj;
  71
  72     NubusBus bus;
  73 };
  74
  75 #endif