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, ...); 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
