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