Merge remote-tracking branch 'remotes/ericb/tags/pull-nbd-2021-10-15' into staging
[qemu.git] / 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 (128 * KiB)
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