root / hw / sysbus.h @ 7feb640c
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#ifndef HW_SYSBUS_H
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#define HW_SYSBUS_H 1 |
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/* Devices attached directly to the main system bus. */
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#include "qdev.h" |
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#include "exec/memory.h" |
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#define QDEV_MAX_MMIO 32 |
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#define QDEV_MAX_PIO 32 |
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#define QDEV_MAX_IRQ 512 |
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#define TYPE_SYSTEM_BUS "System" |
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#define SYSTEM_BUS(obj) OBJECT_CHECK(IDEBus, (obj), TYPE_IDE_BUS)
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typedef struct SysBusDevice SysBusDevice; |
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#define TYPE_SYS_BUS_DEVICE "sys-bus-device" |
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#define SYS_BUS_DEVICE(obj) \
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OBJECT_CHECK(SysBusDevice, (obj), TYPE_SYS_BUS_DEVICE) |
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#define SYS_BUS_DEVICE_CLASS(klass) \
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OBJECT_CLASS_CHECK(SysBusDeviceClass, (klass), TYPE_SYS_BUS_DEVICE) |
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#define SYS_BUS_DEVICE_GET_CLASS(obj) \
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OBJECT_GET_CLASS(SysBusDeviceClass, (obj), TYPE_SYS_BUS_DEVICE) |
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typedef struct SysBusDeviceClass { |
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DeviceClass parent_class; |
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int (*init)(SysBusDevice *dev);
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} SysBusDeviceClass; |
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struct SysBusDevice {
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DeviceState qdev; |
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int num_irq;
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qemu_irq irqs[QDEV_MAX_IRQ]; |
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qemu_irq *irqp[QDEV_MAX_IRQ]; |
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int num_mmio;
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struct {
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hwaddr addr; |
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MemoryRegion *memory; |
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} mmio[QDEV_MAX_MMIO]; |
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int num_pio;
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pio_addr_t pio[QDEV_MAX_PIO]; |
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}; |
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/* Macros to compensate for lack of type inheritance in C. */
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#define FROM_SYSBUS(type, dev) DO_UPCAST(type, busdev, dev)
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void *sysbus_new(void); |
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void sysbus_init_mmio(SysBusDevice *dev, MemoryRegion *memory);
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MemoryRegion *sysbus_mmio_get_region(SysBusDevice *dev, int n);
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void sysbus_init_irq(SysBusDevice *dev, qemu_irq *p);
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void sysbus_pass_irq(SysBusDevice *dev, SysBusDevice *target);
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void sysbus_init_ioports(SysBusDevice *dev, pio_addr_t ioport, pio_addr_t size);
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void sysbus_connect_irq(SysBusDevice *dev, int n, qemu_irq irq); |
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void sysbus_mmio_map(SysBusDevice *dev, int n, hwaddr addr); |
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void sysbus_mmio_map_overlap(SysBusDevice *dev, int n, hwaddr addr, |
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unsigned priority);
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void sysbus_add_memory(SysBusDevice *dev, hwaddr addr,
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MemoryRegion *mem); |
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void sysbus_add_memory_overlap(SysBusDevice *dev, hwaddr addr,
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MemoryRegion *mem, unsigned priority);
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void sysbus_del_memory(SysBusDevice *dev, MemoryRegion *mem);
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void sysbus_add_io(SysBusDevice *dev, hwaddr addr,
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MemoryRegion *mem); |
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void sysbus_del_io(SysBusDevice *dev, MemoryRegion *mem);
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MemoryRegion *sysbus_address_space(SysBusDevice *dev); |
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/* Legacy helper function for creating devices. */
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DeviceState *sysbus_create_varargs(const char *name, |
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hwaddr addr, ...); |
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DeviceState *sysbus_try_create_varargs(const char *name, |
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hwaddr addr, ...); |
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static inline DeviceState *sysbus_create_simple(const char *name, |
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hwaddr addr, |
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qemu_irq irq) |
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{ |
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return sysbus_create_varargs(name, addr, irq, NULL); |
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} |
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static inline DeviceState *sysbus_try_create_simple(const char *name, |
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hwaddr addr, |
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qemu_irq irq) |
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{ |
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return sysbus_try_create_varargs(name, addr, irq, NULL); |
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} |
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#endif /* !HW_SYSBUS_H */ |