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#ifndef QDEV_H
#define QDEV_H
#include "hw.h"
#include "sys-queue.h"
typedef struct DeviceType DeviceType;
typedef struct DeviceProperty DeviceProperty;
typedef struct BusState BusState;
/* This structure should not be accessed directly. We declare it here
so that it can be embedded in individual device state structures. */
struct DeviceState {
DeviceType *type;
BusState *parent_bus;
DeviceProperty *props;
int num_gpio_out;
qemu_irq *gpio_out;
int num_gpio_in;
qemu_irq *gpio_in;
LIST_HEAD(, BusState) child_bus;
NICInfo *nd;
LIST_ENTRY(DeviceState) sibling;
};
typedef enum {
BUS_TYPE_SYSTEM,
BUS_TYPE_PCI,
BUS_TYPE_SCSI,
BUS_TYPE_I2C,
BUS_TYPE_SSI
} BusType;
struct BusState {
DeviceState *parent;
const char *name;
BusType type;
LIST_HEAD(, DeviceState) children;
LIST_ENTRY(BusState) sibling;
};
/*** Board API. This should go away once we have a machine config file. ***/
DeviceState *qdev_create(BusState *bus, const char *name);
void qdev_init(DeviceState *dev);
void qdev_free(DeviceState *dev);
/* Set properties between creation and init. */
void qdev_set_prop_int(DeviceState *dev, const char *name, uint64_t value);
void qdev_set_prop_ptr(DeviceState *dev, const char *name, void *value);
void qdev_set_netdev(DeviceState *dev, NICInfo *nd);
qemu_irq qdev_get_gpio_in(DeviceState *dev, int n);
void qdev_connect_gpio_out(DeviceState *dev, int n, qemu_irq pin);
BusState *qdev_get_child_bus(DeviceState *dev, const char *name);
/*** Device API. ***/
typedef struct DeviceInfo DeviceInfo;
typedef void (*qdev_initfn)(DeviceState *dev, DeviceInfo *info);
typedef void (*SCSIAttachFn)(DeviceState *host, BlockDriverState *bdrv,
int unit);
struct DeviceInfo {
qdev_initfn init;
BusType bus_type;
};
void qdev_register(const char *name, int size, DeviceInfo *info);
/* Register device properties. */
/* GPIO inputs also double as IRQ sinks. */
void qdev_init_gpio_in(DeviceState *dev, qemu_irq_handler handler, int n);
void qdev_init_gpio_out(DeviceState *dev, qemu_irq *pins, int n);
void scsi_bus_new(DeviceState *host, SCSIAttachFn attach);
CharDriverState *qdev_init_chardev(DeviceState *dev);
BusState *qdev_get_parent_bus(DeviceState *dev);
uint64_t qdev_get_prop_int(DeviceState *dev, const char *name, uint64_t def);
void *qdev_get_prop_ptr(DeviceState *dev, const char *name);
/* Convery from a base type to a parent type, with compile time checking. */
#ifdef __GNUC__
#define DO_UPCAST(type, field, dev) ( __extension__ ( { \
char __attribute__((unused)) offset_must_be_zero[ \
-offsetof(type, field)]; \
container_of(dev, type, field);}))
#else
#define DO_UPCAST(type, field, dev) container_of(dev, type, field)
#endif
/*** BUS API. ***/
BusState *qbus_create(BusType type, size_t size,
DeviceState *parent, const char *name);
#define FROM_QBUS(type, dev) DO_UPCAST(type, qbus, dev)
#endif
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