blob: 0327a3328d4bd428142a7f35743f208df5e092d3 [file] [log] [blame]
#ifndef HW_SYSBUS_H
#define HW_SYSBUS_H 1
/* Devices attached directly to the main system bus. */
#include "exec/hwaddr.h"
#include "hw/qdev.h"
#define QDEV_MAX_MMIO 5
#define QDEV_MAX_IRQ 32
typedef struct SysBusDevice SysBusDevice;
typedef void (*mmio_mapfunc)(SysBusDevice *dev, hwaddr addr);
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;
hwaddr size;
mmio_mapfunc cb;
int iofunc;
} mmio[QDEV_MAX_MMIO];
};
typedef void (*sysbus_initfn)(SysBusDevice *dev);
/* 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)
typedef struct {
DeviceInfo qdev;
sysbus_initfn init;
} SysBusDeviceInfo;
void sysbus_register_dev(const char *name, size_t size, sysbus_initfn init);
void sysbus_register_withprop(SysBusDeviceInfo *info);
void *sysbus_new(void);
void sysbus_init_mmio(SysBusDevice *dev, hwaddr size, int iofunc);
void sysbus_init_mmio_cb(SysBusDevice *dev, hwaddr size,
mmio_mapfunc cb);
void sysbus_init_irq(SysBusDevice *dev, qemu_irq *p);
void sysbus_pass_irq(SysBusDevice *dev, SysBusDevice *target);
void sysbus_connect_irq(SysBusDevice *dev, int n, qemu_irq irq);
void sysbus_mmio_map(SysBusDevice *dev, int n, hwaddr addr);
/* 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 */