nubus.h (1650B)
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