1 #ifndef HW_SYSBUS_H 2 #define HW_SYSBUS_H 1 3 4 /* Devices attached directly to the main system bus. */ 5 6 #include "hw/qdev.h" 7 #include "exec/memory.h" 8 9 #define QDEV_MAX_MMIO 32 10 #define QDEV_MAX_PIO 32 11 #define QDEV_MAX_IRQ 512 12 13 #define TYPE_SYSTEM_BUS "System" 14 #define SYSTEM_BUS(obj) OBJECT_CHECK(IDEBus, (obj), TYPE_IDE_BUS) 15 16 typedef struct SysBusDevice SysBusDevice; 17 18 #define TYPE_SYS_BUS_DEVICE "sys-bus-device" 19 #define SYS_BUS_DEVICE(obj) \ 20 OBJECT_CHECK(SysBusDevice, (obj), TYPE_SYS_BUS_DEVICE) 21 #define SYS_BUS_DEVICE_CLASS(klass) \ 22 OBJECT_CLASS_CHECK(SysBusDeviceClass, (klass), TYPE_SYS_BUS_DEVICE) 23 #define SYS_BUS_DEVICE_GET_CLASS(obj) \ 24 OBJECT_GET_CLASS(SysBusDeviceClass, (obj), TYPE_SYS_BUS_DEVICE) 25 26 typedef struct SysBusDeviceClass { 27 DeviceClass parent_class; 28 29 int (*init)(SysBusDevice *dev); 30 } SysBusDeviceClass; 31 32 struct SysBusDevice { 33 DeviceState qdev; 34 int num_irq; 35 qemu_irq irqs[QDEV_MAX_IRQ]; 36 qemu_irq *irqp[QDEV_MAX_IRQ]; 37 int num_mmio; 38 struct { 39 hwaddr addr; 40 MemoryRegion *memory; 41 } mmio[QDEV_MAX_MMIO]; 42 int num_pio; 43 pio_addr_t pio[QDEV_MAX_PIO]; 44 }; 45 46 /* Macros to compensate for lack of type inheritance in C. */ 47 #define FROM_SYSBUS(type, dev) DO_UPCAST(type, busdev, dev) 48 49 void *sysbus_new(void); 50 void sysbus_init_mmio(SysBusDevice *dev, MemoryRegion *memory); 51 MemoryRegion *sysbus_mmio_get_region(SysBusDevice *dev, int n); 52 void sysbus_init_irq(SysBusDevice *dev, qemu_irq *p); 53 void sysbus_pass_irq(SysBusDevice *dev, SysBusDevice *target); 54 void sysbus_init_ioports(SysBusDevice *dev, pio_addr_t ioport, pio_addr_t size); 55 56 57 void sysbus_connect_irq(SysBusDevice *dev, int n, qemu_irq irq); 58 void sysbus_mmio_map(SysBusDevice *dev, int n, hwaddr addr); 59 void sysbus_mmio_map_overlap(SysBusDevice *dev, int n, hwaddr addr, 60 unsigned priority); 61 void sysbus_add_io(SysBusDevice *dev, hwaddr addr, 62 MemoryRegion *mem); 63 void sysbus_del_io(SysBusDevice *dev, MemoryRegion *mem); 64 MemoryRegion *sysbus_address_space(SysBusDevice *dev); 65 66 /* Legacy helper function for creating devices. */ 67 DeviceState *sysbus_create_varargs(const char *name, 68 hwaddr addr, ...); 69 DeviceState *sysbus_try_create_varargs(const char *name, 70 hwaddr addr, ...); 71 static inline DeviceState *sysbus_create_simple(const char *name, 72 hwaddr addr, 73 qemu_irq irq) 74 { 75 return sysbus_create_varargs(name, addr, irq, NULL); 76 } 77 78 static inline DeviceState *sysbus_try_create_simple(const char *name, 79 hwaddr addr, 80 qemu_irq irq) 81 { 82 return sysbus_try_create_varargs(name, addr, irq, NULL); 83 } 84 85 #endif /* !HW_SYSBUS_H */ 86