xref: /qemu/include/hw/nubus/nubus.h (revision e3a6e0da)
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 "exec/address-spaces.h"
14 #include "qom/object.h"
15 
16 #define NUBUS_SUPER_SLOT_SIZE 0x10000000U
17 #define NUBUS_SUPER_SLOT_NB   0x9
18 
19 #define NUBUS_SLOT_SIZE       0x01000000
20 #define NUBUS_SLOT_NB         0xF
21 
22 #define NUBUS_FIRST_SLOT      0x9
23 #define NUBUS_LAST_SLOT       0xF
24 
25 #define TYPE_NUBUS_DEVICE "nubus-device"
26 typedef struct NubusDevice NubusDevice;
27 DECLARE_INSTANCE_CHECKER(NubusDevice, NUBUS_DEVICE,
28                          TYPE_NUBUS_DEVICE)
29 
30 #define TYPE_NUBUS_BUS "nubus-bus"
31 typedef struct NubusBus NubusBus;
32 DECLARE_INSTANCE_CHECKER(NubusBus, NUBUS_BUS,
33                          TYPE_NUBUS_BUS)
34 
35 #define TYPE_NUBUS_BRIDGE "nubus-bridge"
36 
37 struct NubusBus {
38     BusState qbus;
39 
40     MemoryRegion super_slot_io;
41     MemoryRegion slot_io;
42 
43     int current_slot;
44 };
45 
46 struct NubusDevice {
47     DeviceState qdev;
48 
49     int slot_nb;
50     MemoryRegion slot_mem;
51 
52     /* Format Block */
53 
54     MemoryRegion fblock_io;
55 
56     uint32_t rom_length;
57     uint32_t rom_crc;
58     uint8_t rom_rev;
59     uint8_t rom_format;
60     uint8_t byte_lanes;
61     int32_t directory_offset;
62 
63     /* ROM */
64 
65     MemoryRegion rom_io;
66     const uint8_t *rom;
67 };
68 
69 void nubus_register_rom(NubusDevice *dev, const uint8_t *rom, uint32_t size,
70                         int revision, int format, uint8_t byte_lanes);
71 
72 #endif
73