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Basic qdev infrastructure.

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Signed-off-by: Paul Brook <paul@codesourcery.com>
This commit is contained in:
Paul Brook 2009-05-14 22:35:06 +01:00
parent 019d6b8ff0
commit aae9460e24
9 changed files with 512 additions and 2 deletions
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67
hw/qdev.h Normal file
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#ifndef QDEV_H
#define QDEV_H
#include "hw.h"
typedef struct DeviceType DeviceType;
typedef struct DeviceProperty DeviceProperty;
/* This structure should not be accessed directly. We declare it here
so that it can be embedded in individual device state structures. */
struct DeviceState
{
const char *name;
DeviceType *type;
void *bus;
DeviceProperty *props;
int num_irq_sink;
qemu_irq *irq_sink;
int num_gpio_out;
qemu_irq *gpio_out;
int num_gpio_in;
qemu_irq *gpio_in;
};
/*** Board API. This should go away once we have a machine config file. ***/
DeviceState *qdev_create(void *bus, const char *name);
void qdev_init(DeviceState *dev);
/* Set properties between creation and init. */
void qdev_set_prop_int(DeviceState *dev, const char *name, int value);
void qdev_set_prop_ptr(DeviceState *dev, const char *name, void *value);
qemu_irq qdev_get_irq_sink(DeviceState *dev, int n);
qemu_irq qdev_get_gpio_in(DeviceState *dev, int n);
void qdev_connect_gpio_out(DeviceState *dev, int n, qemu_irq pin);
/*** Device API. ***/
typedef void (*qdev_initfn)(DeviceState *dev, void *opaque);
DeviceType *qdev_register(const char *name, int size, qdev_initfn init,
void *opaque);
/* Register device properties. */
void qdev_init_irq_sink(DeviceState *dev, qemu_irq_handler handler, int nirq);
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);
CharDriverState *qdev_init_chardev(DeviceState *dev);
void *qdev_get_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
#endif