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
11 typedef struct SysBusDevice SysBusDevice;
12 typedef void (*mmio_mapfunc)(SysBusDevice *dev, target_phys_addr_t addr);
13
14 struct 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
28 typedef 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
34 typedef struct {
35 DeviceInfo qdev;
36 sysbus_initfn init;
37 } SysBusDeviceInfo;
38
39 void sysbus_register_dev(const char *name, size_t size, sysbus_initfn init);
40 void sysbus_register_withprop(SysBusDeviceInfo *info);
41 void *sysbus_new(void);
42 void sysbus_init_mmio(SysBusDevice *dev, target_phys_addr_t size, int iofunc);
43 void sysbus_init_mmio_cb(SysBusDevice *dev, target_phys_addr_t size,
44 mmio_mapfunc cb);
45 void sysbus_init_irq(SysBusDevice *dev, qemu_irq *p);
46 void sysbus_pass_irq(SysBusDevice *dev, SysBusDevice *target);
47
48
49 void sysbus_connect_irq(SysBusDevice *dev, int n, qemu_irq irq);
50 void sysbus_mmio_map(SysBusDevice *dev, int n, target_phys_addr_t addr);
51
52 /* Legacy helper function for creating devices. */
53 DeviceState *sysbus_create_varargs(const char *name,
54 target_phys_addr_t addr, ...);
sysbus_create_simple(const char * name,target_phys_addr_t addr,qemu_irq irq)55 static 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