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 /** 27 * SysBusDeviceClass: 28 * @init: Callback function invoked when the #DeviceState.realized property 29 * is changed to %true. Deprecated, new types inheriting directly from 30 * TYPE_SYS_BUS_DEVICE should use #DeviceClass.realize instead, new leaf 31 * types should consult their respective parent type. 32 * 33 * SysBusDeviceClass is not overriding #DeviceClass.realize, so derived 34 * classes overriding it are not required to invoke its implementation. 35 */ 36 typedef struct SysBusDeviceClass { 37 /*< private >*/ 38 DeviceClass parent_class; 39 /*< public >*/ 40 41 int (*init)(SysBusDevice *dev); 42 } SysBusDeviceClass; 43 44 struct SysBusDevice { 45 /*< private >*/ 46 DeviceState parent_obj; 47 /*< public >*/ 48 49 int num_irq; 50 qemu_irq irqs[QDEV_MAX_IRQ]; 51 qemu_irq *irqp[QDEV_MAX_IRQ]; 52 int num_mmio; 53 struct { 54 hwaddr addr; 55 MemoryRegion *memory; 56 } mmio[QDEV_MAX_MMIO]; 57 int num_pio; 58 pio_addr_t pio[QDEV_MAX_PIO]; 59 }; 60 61 void sysbus_init_mmio(SysBusDevice *dev, MemoryRegion *memory); 62 MemoryRegion *sysbus_mmio_get_region(SysBusDevice *dev, int n); 63 void sysbus_init_irq(SysBusDevice *dev, qemu_irq *p); 64 void sysbus_pass_irq(SysBusDevice *dev, SysBusDevice *target); 65 void sysbus_init_ioports(SysBusDevice *dev, pio_addr_t ioport, pio_addr_t size); 66 67 68 void sysbus_connect_irq(SysBusDevice *dev, int n, qemu_irq irq); 69 void sysbus_mmio_map(SysBusDevice *dev, int n, hwaddr addr); 70 void sysbus_mmio_map_overlap(SysBusDevice *dev, int n, hwaddr addr, 71 unsigned priority); 72 void sysbus_add_io(SysBusDevice *dev, hwaddr addr, 73 MemoryRegion *mem); 74 void sysbus_del_io(SysBusDevice *dev, MemoryRegion *mem); 75 MemoryRegion *sysbus_address_space(SysBusDevice *dev); 76 77 /* Legacy helper function for creating devices. */ 78 DeviceState *sysbus_create_varargs(const char *name, 79 hwaddr addr, ...); 80 DeviceState *sysbus_try_create_varargs(const char *name, 81 hwaddr addr, ...); 82 static inline DeviceState *sysbus_create_simple(const char *name, 83 hwaddr addr, 84 qemu_irq irq) 85 { 86 return sysbus_create_varargs(name, addr, irq, NULL); 87 } 88 89 static inline DeviceState *sysbus_try_create_simple(const char *name, 90 hwaddr addr, 91 qemu_irq irq) 92 { 93 return sysbus_try_create_varargs(name, addr, irq, NULL); 94 } 95 96 #endif /* !HW_SYSBUS_H */ 97