1#ifndef HW_SYSBUS_H
2#define HW_SYSBUS_H 1
3
4/* Devices attached directly to the main system bus.  */
5
6#include "qdev.h"
7
8#define QDEV_MAX_MMIO 5
9#define QDEV_MAX_IRQ 32
10
11typedef struct SysBusDevice SysBusDevice;
12typedef void (*mmio_mapfunc)(SysBusDevice *dev, target_phys_addr_t addr);
13
14struct SysBusDevice {
15    DeviceState qdev;
16    int num_irq;
17    qemu_irq irqs[QDEV_MAX_IRQ];
18    qemu_irq *irqp[QDEV_MAX_IRQ];
19    int num_mmio;
20    struct {
21        target_phys_addr_t addr;
22        target_phys_addr_t size;
23        mmio_mapfunc cb;
24        int iofunc;
25    } mmio[QDEV_MAX_MMIO];
26};
27
28typedef void (*sysbus_initfn)(SysBusDevice *dev);
29
30/* Macros to compensate for lack of type inheritance in C.  */
31#define sysbus_from_qdev(dev) ((SysBusDevice *)(dev))
32#define FROM_SYSBUS(type, dev) DO_UPCAST(type, busdev, dev)
33
34typedef struct {
35    DeviceInfo qdev;
36    sysbus_initfn init;
37} SysBusDeviceInfo;
38
39void sysbus_register_dev(const char *name, size_t size, sysbus_initfn init);
40void sysbus_register_withprop(SysBusDeviceInfo *info);
41void *sysbus_new(void);
42void sysbus_init_mmio(SysBusDevice *dev, target_phys_addr_t size, int iofunc);
43void sysbus_init_mmio_cb(SysBusDevice *dev, target_phys_addr_t size,
44                            mmio_mapfunc cb);
45void sysbus_init_irq(SysBusDevice *dev, qemu_irq *p);
46void sysbus_pass_irq(SysBusDevice *dev, SysBusDevice *target);
47
48
49void sysbus_connect_irq(SysBusDevice *dev, int n, qemu_irq irq);
50void sysbus_mmio_map(SysBusDevice *dev, int n, target_phys_addr_t addr);
51
52/* Legacy helper function for creating devices.  */
53DeviceState *sysbus_create_varargs(const char *name,
54                                 target_phys_addr_t addr, ...);
55static inline DeviceState *sysbus_create_simple(const char *name,
56                                              target_phys_addr_t addr,
57                                              qemu_irq irq)
58{
59    return sysbus_create_varargs(name, addr, irq, NULL);
60}
61
62#endif /* !HW_SYSBUS_H */
63