| #ifndef HW_SYSBUS_H |
| #define HW_SYSBUS_H |
| |
| /* Devices attached directly to the main system bus. */ |
| |
| #include "hw/qdev-core.h" |
| #include "exec/memory.h" |
| #include "qom/object.h" |
| |
| #define QDEV_MAX_MMIO 32 |
| #define QDEV_MAX_PIO 32 |
| |
| #define TYPE_SYSTEM_BUS "System" |
| #define SYSTEM_BUS(obj) OBJECT_CHECK(BusState, (obj), TYPE_SYSTEM_BUS) |
| |
| typedef struct SysBusDevice SysBusDevice; |
| |
| #define TYPE_SYS_BUS_DEVICE "sys-bus-device" |
| typedef struct SysBusDeviceClass SysBusDeviceClass; |
| #define SYS_BUS_DEVICE(obj) \ |
| OBJECT_CHECK(SysBusDevice, (obj), TYPE_SYS_BUS_DEVICE) |
| #define SYS_BUS_DEVICE_CLASS(klass) \ |
| OBJECT_CLASS_CHECK(SysBusDeviceClass, (klass), TYPE_SYS_BUS_DEVICE) |
| #define SYS_BUS_DEVICE_GET_CLASS(obj) \ |
| OBJECT_GET_CLASS(SysBusDeviceClass, (obj), TYPE_SYS_BUS_DEVICE) |
| |
| /** |
| * SysBusDeviceClass: |
| * |
| * SysBusDeviceClass is not overriding #DeviceClass.realize, so derived |
| * classes overriding it are not required to invoke its implementation. |
| */ |
| |
| #define SYSBUS_DEVICE_GPIO_IRQ "sysbus-irq" |
| |
| struct SysBusDeviceClass { |
| /*< private >*/ |
| DeviceClass parent_class; |
| |
| /* |
| * Let the sysbus device format its own non-PIO, non-MMIO unit address. |
| * |
| * Sometimes a class of SysBusDevices has neither MMIO nor PIO resources, |
| * yet instances of it would like to distinguish themselves, in |
| * OpenFirmware device paths, from other instances of the same class on the |
| * sysbus. For that end we expose this callback. |
| * |
| * The implementation is not supposed to change *@dev, or incur other |
| * observable change. |
| * |
| * The function returns a dynamically allocated string. On error, NULL |
| * should be returned; the unit address portion of the OFW node will be |
| * omitted then. (This is not considered a fatal error.) |
| */ |
| char *(*explicit_ofw_unit_address)(const SysBusDevice *dev); |
| void (*connect_irq_notifier)(SysBusDevice *dev, qemu_irq irq); |
| }; |
| |
| struct SysBusDevice { |
| /*< private >*/ |
| DeviceState parent_obj; |
| /*< public >*/ |
| |
| int num_mmio; |
| struct { |
| hwaddr addr; |
| MemoryRegion *memory; |
| } mmio[QDEV_MAX_MMIO]; |
| int num_pio; |
| uint32_t pio[QDEV_MAX_PIO]; |
| }; |
| |
| typedef void FindSysbusDeviceFunc(SysBusDevice *sbdev, void *opaque); |
| |
| void sysbus_init_mmio(SysBusDevice *dev, MemoryRegion *memory); |
| MemoryRegion *sysbus_mmio_get_region(SysBusDevice *dev, int n); |
| void sysbus_init_irq(SysBusDevice *dev, qemu_irq *p); |
| void sysbus_pass_irq(SysBusDevice *dev, SysBusDevice *target); |
| void sysbus_init_ioports(SysBusDevice *dev, uint32_t ioport, uint32_t size); |
| |
| |
| bool sysbus_has_irq(SysBusDevice *dev, int n); |
| bool sysbus_has_mmio(SysBusDevice *dev, unsigned int n); |
| void sysbus_connect_irq(SysBusDevice *dev, int n, qemu_irq irq); |
| bool sysbus_is_irq_connected(SysBusDevice *dev, int n); |
| qemu_irq sysbus_get_connected_irq(SysBusDevice *dev, int n); |
| void sysbus_mmio_map(SysBusDevice *dev, int n, hwaddr addr); |
| void sysbus_mmio_map_overlap(SysBusDevice *dev, int n, hwaddr addr, |
| int priority); |
| void sysbus_mmio_unmap(SysBusDevice *dev, int n); |
| void sysbus_add_io(SysBusDevice *dev, hwaddr addr, |
| MemoryRegion *mem); |
| MemoryRegion *sysbus_address_space(SysBusDevice *dev); |
| |
| bool sysbus_realize(SysBusDevice *dev, Error **errp); |
| bool sysbus_realize_and_unref(SysBusDevice *dev, Error **errp); |
| |
| /* Call func for every dynamically created sysbus device in the system */ |
| void foreach_dynamic_sysbus_device(FindSysbusDeviceFunc *func, void *opaque); |
| |
| /* Legacy helper function for creating devices. */ |
| DeviceState *sysbus_create_varargs(const char *name, |
| hwaddr addr, ...); |
| |
| static inline DeviceState *sysbus_create_simple(const char *name, |
| hwaddr addr, |
| qemu_irq irq) |
| { |
| return sysbus_create_varargs(name, addr, irq, NULL); |
| } |
| |
| #endif /* HW_SYSBUS_H */ |