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 12 #define TYPE_SYSTEM_BUS "System" 13 #define SYSTEM_BUS(obj) OBJECT_CHECK(IDEBus, (obj), TYPE_IDE_BUS) 14 15 typedef struct SysBusDevice SysBusDevice; 16 17 #define TYPE_SYS_BUS_DEVICE "sys-bus-device" 18 #define SYS_BUS_DEVICE(obj) \ 19 OBJECT_CHECK(SysBusDevice, (obj), TYPE_SYS_BUS_DEVICE) 20 #define SYS_BUS_DEVICE_CLASS(klass) \ 21 OBJECT_CLASS_CHECK(SysBusDeviceClass, (klass), TYPE_SYS_BUS_DEVICE) 22 #define SYS_BUS_DEVICE_GET_CLASS(obj) \ 23 OBJECT_GET_CLASS(SysBusDeviceClass, (obj), TYPE_SYS_BUS_DEVICE) 24 25 /** 26 * SysBusDeviceClass: 27 * @init: Callback function invoked when the #DeviceState.realized property 28 * is changed to %true. Deprecated, new types inheriting directly from 29 * TYPE_SYS_BUS_DEVICE should use #DeviceClass.realize instead, new leaf 30 * types should consult their respective parent type. 31 * 32 * SysBusDeviceClass is not overriding #DeviceClass.realize, so derived 33 * classes overriding it are not required to invoke its implementation. 34 */ 35 36 #define SYSBUS_DEVICE_GPIO_IRQ "sysbus-irq" 37 38 typedef struct SysBusDeviceClass { 39 /*< private >*/ 40 DeviceClass parent_class; 41 /*< public >*/ 42 43 int (*init)(SysBusDevice *dev); 44 } SysBusDeviceClass; 45 46 struct SysBusDevice { 47 /*< private >*/ 48 DeviceState parent_obj; 49 /*< public >*/ 50 51 int num_mmio; 52 struct { 53 hwaddr addr; 54 MemoryRegion *memory; 55 } mmio[QDEV_MAX_MMIO]; 56 int num_pio; 57 pio_addr_t pio[QDEV_MAX_PIO]; 58 }; 59 60 typedef int FindSysbusDeviceFunc(SysBusDevice *sbdev, void *opaque); 61 62 void sysbus_init_mmio(SysBusDevice *dev, MemoryRegion *memory); 63 MemoryRegion *sysbus_mmio_get_region(SysBusDevice *dev, int n); 64 void sysbus_init_irq(SysBusDevice *dev, qemu_irq *p); 65 void sysbus_pass_irq(SysBusDevice *dev, SysBusDevice *target); 66 void sysbus_init_ioports(SysBusDevice *dev, pio_addr_t ioport, pio_addr_t size); 67 68 69 void sysbus_connect_irq(SysBusDevice *dev, int n, qemu_irq irq); 70 void sysbus_mmio_map(SysBusDevice *dev, int n, hwaddr addr); 71 void sysbus_mmio_map_overlap(SysBusDevice *dev, int n, hwaddr addr, 72 int priority); 73 void sysbus_add_io(SysBusDevice *dev, hwaddr addr, 74 MemoryRegion *mem); 75 MemoryRegion *sysbus_address_space(SysBusDevice *dev); 76 77 /* Call func for every dynamically created sysbus device in the system */ 78 void foreach_dynamic_sysbus_device(FindSysbusDeviceFunc *func, void *opaque); 79 80 /* Legacy helper function for creating devices. */ 81 DeviceState *sysbus_create_varargs(const char *name, 82 hwaddr addr, ...); 83 DeviceState *sysbus_try_create_varargs(const char *name, 84 hwaddr addr, ...); 85 static inline DeviceState *sysbus_create_simple(const char *name, 86 hwaddr addr, 87 qemu_irq irq) 88 { 89 return sysbus_create_varargs(name, addr, irq, NULL); 90 } 91 92 static inline DeviceState *sysbus_try_create_simple(const char *name, 93 hwaddr addr, 94 qemu_irq irq) 95 { 96 return sysbus_try_create_varargs(name, addr, irq, NULL); 97 } 98 99 #endif /* !HW_SYSBUS_H */ 100