1 #ifndef HW_SYSBUS_H 2 #define HW_SYSBUS_H 1 3 4 /* Devices attached directly to the main system bus. */ 5 6 #include "exec/hwaddr.h" 7 #include "hw/qdev.h" 8 9 #define QDEV_MAX_MMIO 5 10 #define QDEV_MAX_IRQ 32 11 12 typedef struct SysBusDevice SysBusDevice; 13 typedef void (*mmio_mapfunc)(SysBusDevice *dev, hwaddr addr); 14 15 struct SysBusDevice { 16 DeviceState qdev; 17 int num_irq; 18 qemu_irq irqs[QDEV_MAX_IRQ]; 19 qemu_irq *irqp[QDEV_MAX_IRQ]; 20 int num_mmio; 21 struct { 22 hwaddr addr; 23 hwaddr size; 24 mmio_mapfunc cb; 25 int iofunc; 26 } mmio[QDEV_MAX_MMIO]; 27 }; 28 29 typedef void (*sysbus_initfn)(SysBusDevice *dev); 30 31 /* Macros to compensate for lack of type inheritance in C. */ 32 #define sysbus_from_qdev(dev) ((SysBusDevice *)(dev)) 33 #define FROM_SYSBUS(type, dev) DO_UPCAST(type, busdev, dev) 34 35 typedef struct { 36 DeviceInfo qdev; 37 sysbus_initfn init; 38 } SysBusDeviceInfo; 39 40 void sysbus_register_dev(const char *name, size_t size, sysbus_initfn init); 41 void sysbus_register_withprop(SysBusDeviceInfo *info); 42 void *sysbus_new(void); 43 void sysbus_init_mmio(SysBusDevice *dev, hwaddr size, int iofunc); 44 void sysbus_init_mmio_cb(SysBusDevice *dev, hwaddr size, 45 mmio_mapfunc cb); 46 void sysbus_init_irq(SysBusDevice *dev, qemu_irq *p); 47 void sysbus_pass_irq(SysBusDevice *dev, SysBusDevice *target); 48 49 50 void sysbus_connect_irq(SysBusDevice *dev, int n, qemu_irq irq); 51 void sysbus_mmio_map(SysBusDevice *dev, int n, hwaddr addr); 52 53 /* Legacy helper function for creating devices. */ 54 DeviceState *sysbus_create_varargs(const char *name, 55 hwaddr addr, ...); 56 static inline DeviceState *sysbus_create_simple(const char *name, 57 hwaddr addr, 58 qemu_irq irq) 59 { 60 return sysbus_create_varargs(name, addr, irq, NULL); 61 } 62 63 #endif /* !HW_SYSBUS_H */ 64
