mirror of
https://github.com/xemu-project/xemu.git
synced 2024-11-25 04:30:02 +00:00
074f2fff79
Rationale: move device information from code to data structures. v2: Adapt the drivers missed in the first version. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
130 lines
3.5 KiB
C
130 lines
3.5 KiB
C
#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_dev(DeviceState *dev, const char *name, DeviceState *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 enum {
|
|
PROP_TYPE_INT,
|
|
PROP_TYPE_PTR,
|
|
PROP_TYPE_DEV
|
|
} DevicePropType;
|
|
|
|
typedef struct {
|
|
const char *name;
|
|
DevicePropType type;
|
|
} DevicePropList;
|
|
|
|
typedef struct DeviceInfo DeviceInfo;
|
|
|
|
typedef void (*qdev_initfn)(DeviceState *dev, DeviceInfo *info);
|
|
typedef void (*SCSIAttachFn)(DeviceState *host, BlockDriverState *bdrv,
|
|
int unit);
|
|
|
|
struct DeviceInfo {
|
|
const char *name;
|
|
size_t size;
|
|
DevicePropList *props;
|
|
|
|
/* Private to qdev / bus. */
|
|
qdev_initfn init;
|
|
BusType bus_type;
|
|
};
|
|
|
|
void qdev_register(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);
|
|
DeviceState *qdev_get_prop_dev(DeviceState *dev, const char *name);
|
|
/* FIXME: Remove opaque pointer properties. */
|
|
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)
|
|
|
|
/*** monitor commands ***/
|
|
|
|
void do_info_qtree(Monitor *mon);
|
|
void sysbus_dev_print(Monitor *mon, DeviceState *dev, int indent);
|
|
|
|
#endif
|