LXR qemu/include/hw/sysbus.h

   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
  16typedef 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 */
  36typedef struct SysBusDeviceClass {
  37    /*< private >*/
  38    DeviceClass parent_class;
  39    /*< public >*/
  40
  41    int (*init)(SysBusDevice *dev);
  42} SysBusDeviceClass;
  43
  44struct 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
  61void sysbus_init_mmio(SysBusDevice *dev, MemoryRegion *memory);
  62MemoryRegion *sysbus_mmio_get_region(SysBusDevice *dev, int n);
  63void sysbus_init_irq(SysBusDevice *dev, qemu_irq *p);
  64void sysbus_pass_irq(SysBusDevice *dev, SysBusDevice *target);
  65void sysbus_init_ioports(SysBusDevice *dev, pio_addr_t ioport, pio_addr_t size);
  66
  67
  68void sysbus_connect_irq(SysBusDevice *dev, int n, qemu_irq irq);
  69void sysbus_mmio_map(SysBusDevice *dev, int n, hwaddr addr);
  70void sysbus_mmio_map_overlap(SysBusDevice *dev, int n, hwaddr addr,
  71                             unsigned priority);
  72void sysbus_add_io(SysBusDevice *dev, hwaddr addr,
  73                   MemoryRegion *mem);
  74void sysbus_del_io(SysBusDevice *dev, MemoryRegion *mem);
  75MemoryRegion *sysbus_address_space(SysBusDevice *dev);
  76
  77/* Legacy helper function for creating devices.  */
  78DeviceState *sysbus_create_varargs(const char *name,
  79                                 hwaddr addr, ...);
  80DeviceState *sysbus_try_create_varargs(const char *name,
  81                                       hwaddr addr, ...);
  82static 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
  89static 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