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aae9460e | 1 | #ifndef HW_SYSBUS_H |
175de524 | 2 | #define HW_SYSBUS_H |
aae9460e PB |
3 | |
4 | /* Devices attached directly to the main system bus. */ | |
5 | ||
a27bd6c7 | 6 | #include "hw/qdev-core.h" |
022c62cb | 7 | #include "exec/memory.h" |
db1015e9 | 8 | #include "qom/object.h" |
aae9460e | 9 | |
f40070c3 | 10 | #define QDEV_MAX_MMIO 32 |
c646f74f | 11 | #define QDEV_MAX_PIO 32 |
aae9460e | 12 | |
0d936928 | 13 | #define TYPE_SYSTEM_BUS "System" |
8110fa1d EH |
14 | DECLARE_INSTANCE_CHECKER(BusState, SYSTEM_BUS, |
15 | TYPE_SYSTEM_BUS) | |
0d936928 | 16 | |
aae9460e | 17 | |
999e12bb | 18 | #define TYPE_SYS_BUS_DEVICE "sys-bus-device" |
c821774a EH |
19 | OBJECT_DECLARE_TYPE(SysBusDevice, SysBusDeviceClass, |
20 | sys_bus_device, SYS_BUS_DEVICE) | |
999e12bb | 21 | |
ce724398 HT |
22 | /** |
23 | * SysBusDeviceClass: | |
ce724398 HT |
24 | * |
25 | * SysBusDeviceClass is not overriding #DeviceClass.realize, so derived | |
26 | * classes overriding it are not required to invoke its implementation. | |
27 | */ | |
b5917219 PC |
28 | |
29 | #define SYSBUS_DEVICE_GPIO_IRQ "sysbus-irq" | |
30 | ||
db1015e9 | 31 | struct SysBusDeviceClass { |
ce724398 | 32 | /*< private >*/ |
999e12bb | 33 | DeviceClass parent_class; |
0b336b3b LE |
34 | |
35 | /* | |
36 | * Let the sysbus device format its own non-PIO, non-MMIO unit address. | |
37 | * | |
38 | * Sometimes a class of SysBusDevices has neither MMIO nor PIO resources, | |
39 | * yet instances of it would like to distinguish themselves, in | |
40 | * OpenFirmware device paths, from other instances of the same class on the | |
41 | * sysbus. For that end we expose this callback. | |
42 | * | |
43 | * The implementation is not supposed to change *@dev, or incur other | |
44 | * observable change. | |
45 | * | |
46 | * The function returns a dynamically allocated string. On error, NULL | |
47 | * should be returned; the unit address portion of the OFW node will be | |
48 | * omitted then. (This is not considered a fatal error.) | |
49 | */ | |
50 | char *(*explicit_ofw_unit_address)(const SysBusDevice *dev); | |
715ca691 | 51 | void (*connect_irq_notifier)(SysBusDevice *dev, qemu_irq irq); |
db1015e9 | 52 | }; |
999e12bb | 53 | |
aae9460e | 54 | struct SysBusDevice { |
b67964d7 AF |
55 | /*< private >*/ |
56 | DeviceState parent_obj; | |
57 | /*< public >*/ | |
58 | ||
aae9460e PB |
59 | int num_mmio; |
60 | struct { | |
a8170e5e | 61 | hwaddr addr; |
ec3bb837 | 62 | MemoryRegion *memory; |
aae9460e | 63 | } mmio[QDEV_MAX_MMIO]; |
c646f74f | 64 | int num_pio; |
89a80e74 | 65 | uint32_t pio[QDEV_MAX_PIO]; |
aae9460e PB |
66 | }; |
67 | ||
4f01a637 | 68 | typedef void FindSysbusDeviceFunc(SysBusDevice *sbdev, void *opaque); |
eb572280 | 69 | |
750ecd44 | 70 | void sysbus_init_mmio(SysBusDevice *dev, MemoryRegion *memory); |
46c305ef | 71 | MemoryRegion *sysbus_mmio_get_region(SysBusDevice *dev, int n); |
aae9460e PB |
72 | void sysbus_init_irq(SysBusDevice *dev, qemu_irq *p); |
73 | void sysbus_pass_irq(SysBusDevice *dev, SysBusDevice *target); | |
89a80e74 | 74 | void sysbus_init_ioports(SysBusDevice *dev, uint32_t ioport, uint32_t size); |
aae9460e PB |
75 | |
76 | ||
b7973186 | 77 | bool sysbus_has_irq(SysBusDevice *dev, int n); |
471a9bc1 | 78 | bool sysbus_has_mmio(SysBusDevice *dev, unsigned int n); |
aae9460e | 79 | void sysbus_connect_irq(SysBusDevice *dev, int n, qemu_irq irq); |
b7973186 AG |
80 | bool sysbus_is_irq_connected(SysBusDevice *dev, int n); |
81 | qemu_irq sysbus_get_connected_irq(SysBusDevice *dev, int n); | |
a8170e5e | 82 | void sysbus_mmio_map(SysBusDevice *dev, int n, hwaddr addr); |
7feb640c | 83 | void sysbus_mmio_map_overlap(SysBusDevice *dev, int n, hwaddr addr, |
a1ff8ae0 | 84 | int priority); |
90c20e1e | 85 | void sysbus_mmio_unmap(SysBusDevice *dev, int n); |
a8170e5e | 86 | void sysbus_add_io(SysBusDevice *dev, hwaddr addr, |
2b985d9c | 87 | MemoryRegion *mem); |
62ec4832 | 88 | MemoryRegion *sysbus_address_space(SysBusDevice *dev); |
aae9460e | 89 | |
496a8525 MA |
90 | bool sysbus_realize(SysBusDevice *dev, Error **errp); |
91 | bool sysbus_realize_and_unref(SysBusDevice *dev, Error **errp); | |
92 | ||
eb572280 AG |
93 | /* Call func for every dynamically created sysbus device in the system */ |
94 | void foreach_dynamic_sysbus_device(FindSysbusDeviceFunc *func, void *opaque); | |
95 | ||
aae9460e PB |
96 | /* Legacy helper function for creating devices. */ |
97 | DeviceState *sysbus_create_varargs(const char *name, | |
a8170e5e | 98 | hwaddr addr, ...); |
7e83a77f | 99 | |
aae9460e | 100 | static inline DeviceState *sysbus_create_simple(const char *name, |
a8170e5e | 101 | hwaddr addr, |
aae9460e PB |
102 | qemu_irq irq) |
103 | { | |
104 | return sysbus_create_varargs(name, addr, irq, NULL); | |
105 | } | |
106 | ||
175de524 | 107 | #endif /* HW_SYSBUS_H */ |