Archipelago » qemu

#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 256

typedef struct SysBusDevice SysBusDevice;

typedef void (*mmio_mapfunc)(SysBusDevice *dev, target_phys_addr_t addr);

struct SysBusDevice {

    DeviceState qdev;

    int num_irq;

    qemu_irq irqs[QDEV_MAX_IRQ];

    qemu_irq *irqp[QDEV_MAX_IRQ];

    int num_mmio;

    struct {

        target_phys_addr_t addr;

        target_phys_addr_t size;

        mmio_mapfunc cb;

        mmio_mapfunc unmap;

        ram_addr_t iofunc;

        MemoryRegion *memory;

    } mmio[QDEV_MAX_MMIO];

    int num_pio;

    pio_addr_t pio[QDEV_MAX_PIO];

};

typedef int (*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, target_phys_addr_t size,

                      ram_addr_t iofunc);

void sysbus_init_mmio_cb2(SysBusDevice *dev,

                          mmio_mapfunc cb, mmio_mapfunc unmap);

void sysbus_init_mmio_region(SysBusDevice *dev, MemoryRegion *memory);

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, target_phys_addr_t addr);

/* Legacy helper function for creating devices.  */

DeviceState *sysbus_create_varargs(const char *name,

                                 target_phys_addr_t addr, ...);

DeviceState *sysbus_try_create_varargs(const char *name,

                                       target_phys_addr_t addr, ...);

static inline DeviceState *sysbus_create_simple(const char *name,

                                              target_phys_addr_t addr,

                                              qemu_irq irq)

{

    return sysbus_create_varargs(name, addr, irq, NULL);

}

static inline DeviceState *sysbus_try_create_simple(const char *name,

                                                    target_phys_addr_t addr,

                                                    qemu_irq irq)

{

    return sysbus_try_create_varargs(name, addr, irq, NULL);

}

#endif /* !HW_SYSBUS_H */