#include "qemu-char.h"
#include "qemu-option.h"
#include "qapi/qapi-visit-core.h"
+#include "qemu/object.h"
+#include "error.h"
typedef struct Property Property;
typedef struct CompatProperty CompatProperty;
-typedef struct DeviceInfo DeviceInfo;
-
typedef struct BusState BusState;
typedef struct BusInfo BusInfo;
DEV_NVECTORS_UNSPECIFIED = -1,
};
-/**
- * @DevicePropertyAccessor - called when trying to get/set a property
- *
- * @dev the device that owns the property
- * @v the visitor that contains the property data
- * @opaque the device property opaque
- * @name the name of the property
- * @errp a pointer to an Error that is filled if getting/setting fails.
- */
-typedef void (DevicePropertyAccessor)(DeviceState *dev,
- Visitor *v,
- void *opaque,
- const char *name,
- Error **errp);
+#define TYPE_DEVICE "device"
+#define DEVICE(obj) OBJECT_CHECK(DeviceState, (obj), TYPE_DEVICE)
+#define DEVICE_CLASS(klass) OBJECT_CLASS_CHECK(DeviceClass, (klass), TYPE_DEVICE)
+#define DEVICE_GET_CLASS(obj) OBJECT_GET_CLASS(DeviceClass, (obj), TYPE_DEVICE)
-/**
- * @DevicePropertyRelease - called when a property is removed from a device
- *
- * @dev the device that owns the property
- * @name the name of the property
- * @opaque the opaque registered with the property
- */
-typedef void (DevicePropertyRelease)(DeviceState *dev,
- const char *name,
- void *opaque);
-
-typedef struct DeviceProperty
-{
- gchar *name;
- gchar *type;
- DevicePropertyAccessor *get;
- DevicePropertyAccessor *set;
- DevicePropertyRelease *release;
- void *opaque;
-
- QTAILQ_ENTRY(DeviceProperty) node;
-} DeviceProperty;
+typedef int (*qdev_initfn)(DeviceState *dev);
+typedef int (*qdev_event)(DeviceState *dev);
+typedef void (*qdev_resetfn)(DeviceState *dev);
+
+typedef struct DeviceClass {
+ ObjectClass parent_class;
+
+ const char *fw_name;
+ const char *desc;
+ Property *props;
+ int no_user;
+
+ /* callbacks */
+ void (*reset)(DeviceState *dev);
+
+ /* device state */
+ const VMStateDescription *vmsd;
+
+ /* Private to qdev / bus. */
+ qdev_initfn init;
+ qdev_event unplug;
+ qdev_event exit;
+ BusInfo *bus_info;
+} DeviceClass;
/* This structure should not be accessed directly. We declare it here
so that it can be embedded in individual device state structures. */
struct DeviceState {
+ Object parent_obj;
+
const char *id;
enum DevState state;
QemuOpts *opts;
int hotplugged;
- DeviceInfo *info;
BusState *parent_bus;
int num_gpio_out;
qemu_irq *gpio_out;
QTAILQ_ENTRY(DeviceState) sibling;
int instance_id_alias;
int alias_required_for_version;
-
- /**
- * This tracks the number of references between devices. See @qdev_ref for
- * more information.
- */
- uint32_t ref;
-
- QTAILQ_HEAD(, DeviceProperty) properties;
-
- /* Do not, under any circumstance, use this parent link below anywhere
- * outside of qdev.c. You have been warned. */
- DeviceState *parent;
};
typedef void (*bus_dev_printfn)(Monitor *mon, DeviceState *dev, int indent);
bus_get_dev_path get_dev_path;
bus_get_fw_dev_path get_fw_dev_path;
qbus_resetfn *reset;
- Property *props;
};
struct BusState {
const char *name;
PropertyInfo *info;
int offset;
- int bitnr;
- void *defval;
-};
-
-enum PropertyType {
- PROP_TYPE_UNSPEC = 0,
- PROP_TYPE_UINT8,
- PROP_TYPE_UINT16,
- PROP_TYPE_UINT32,
- PROP_TYPE_INT32,
- PROP_TYPE_UINT64,
- PROP_TYPE_TADDR,
- PROP_TYPE_MACADDR,
- PROP_TYPE_DRIVE,
- PROP_TYPE_CHR,
- PROP_TYPE_STRING,
- PROP_TYPE_NETDEV,
- PROP_TYPE_VLAN,
- PROP_TYPE_PTR,
- PROP_TYPE_BIT,
+ uint8_t bitnr;
+ uint8_t qtype;
+ int64_t defval;
};
struct PropertyInfo {
const char *name;
- size_t size;
- enum PropertyType type;
+ const char *legacy_name;
+ const char **enum_table;
int (*parse)(DeviceState *dev, Property *prop, const char *str);
int (*print)(DeviceState *dev, Property *prop, char *dest, size_t len);
- void (*free)(DeviceState *dev, Property *prop);
+ ObjectPropertyAccessor *get;
+ ObjectPropertyAccessor *set;
+ ObjectPropertyRelease *release;
};
typedef struct GlobalProperty {
DeviceState *qdev_create(BusState *bus, const char *name);
DeviceState *qdev_try_create(BusState *bus, const char *name);
+bool qdev_exists(const char *name);
int qdev_device_help(QemuOpts *opts);
DeviceState *qdev_device_add(QemuOpts *opts);
int qdev_init(DeviceState *dev) QEMU_WARN_UNUSED_RESULT;
void qdev_init_nofail(DeviceState *dev);
void qdev_set_legacy_instance_id(DeviceState *dev, int alias_id,
int required_for_version);
-int qdev_unplug(DeviceState *dev);
+void qdev_unplug(DeviceState *dev, Error **errp);
void qdev_free(DeviceState *dev);
int qdev_simple_unplug_cb(DeviceState *dev);
void qdev_machine_creation_done(void);
/*** Device API. ***/
-typedef int (*qdev_initfn)(DeviceState *dev, DeviceInfo *info);
-typedef int (*qdev_event)(DeviceState *dev);
-typedef void (*qdev_resetfn)(DeviceState *dev);
-
-struct DeviceInfo {
- const char *name;
- const char *fw_name;
- const char *alias;
- const char *desc;
- size_t size;
- Property *props;
- int no_user;
-
- /* callbacks */
- qdev_resetfn reset;
-
- /* device state */
- const VMStateDescription *vmsd;
-
- /* Private to qdev / bus. */
- qdev_initfn init;
- qdev_event unplug;
- qdev_event exit;
- BusInfo *bus_info;
- struct DeviceInfo *next;
-};
-extern DeviceInfo *device_info_list;
-
-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);
-CharDriverState *qdev_init_chardev(DeviceState *dev);
-
BusState *qdev_get_parent_bus(DeviceState *dev);
/*** BUS API. ***/
extern PropertyInfo qdev_prop_chr;
extern PropertyInfo qdev_prop_ptr;
extern PropertyInfo qdev_prop_macaddr;
+extern PropertyInfo qdev_prop_losttickpolicy;
extern PropertyInfo qdev_prop_drive;
extern PropertyInfo qdev_prop_netdev;
extern PropertyInfo qdev_prop_vlan;
extern PropertyInfo qdev_prop_pci_devfn;
+extern PropertyInfo qdev_prop_blocksize;
#define DEFINE_PROP(_name, _state, _field, _prop, _type) { \
.name = (_name), \
.info = &(_prop), \
.offset = offsetof(_state, _field) \
+ type_check(_type,typeof_field(_state, _field)), \
- .defval = (_type[]) { _defval }, \
+ .qtype = QTYPE_QINT, \
+ .defval = (_type)_defval, \
}
#define DEFINE_PROP_BIT(_name, _state, _field, _bit, _defval) { \
.name = (_name), \
.bitnr = (_bit), \
.offset = offsetof(_state, _field) \
+ type_check(uint32_t,typeof_field(_state, _field)), \
- .defval = (bool[]) { (_defval) }, \
+ .qtype = QTYPE_QBOOL, \
+ .defval = (bool)_defval, \
}
#define DEFINE_PROP_UINT8(_n, _s, _f, _d) \
#define DEFINE_PROP_HEX64(_n, _s, _f, _d) \
DEFINE_PROP_DEFAULT(_n, _s, _f, _d, qdev_prop_hex64, uint64_t)
#define DEFINE_PROP_PCI_DEVFN(_n, _s, _f, _d) \
- DEFINE_PROP_DEFAULT(_n, _s, _f, _d, qdev_prop_pci_devfn, uint32_t)
+ DEFINE_PROP_DEFAULT(_n, _s, _f, _d, qdev_prop_pci_devfn, int32_t)
#define DEFINE_PROP_PTR(_n, _s, _f) \
DEFINE_PROP(_n, _s, _f, qdev_prop_ptr, void*)
DEFINE_PROP(_n, _s, _f, qdev_prop_drive, BlockDriverState *)
#define DEFINE_PROP_MACADDR(_n, _s, _f) \
DEFINE_PROP(_n, _s, _f, qdev_prop_macaddr, MACAddr)
+#define DEFINE_PROP_LOSTTICKPOLICY(_n, _s, _f, _d) \
+ DEFINE_PROP_DEFAULT(_n, _s, _f, _d, qdev_prop_losttickpolicy, \
+ LostTickPolicy)
+#define DEFINE_PROP_BLOCKSIZE(_n, _s, _f, _d) \
+ DEFINE_PROP_DEFAULT(_n, _s, _f, _d, qdev_prop_blocksize, uint16_t)
#define DEFINE_PROP_END_OF_LIST() \
{}
void *qdev_get_prop_ptr(DeviceState *dev, Property *prop);
int qdev_prop_exists(DeviceState *dev, const char *name);
int qdev_prop_parse(DeviceState *dev, const char *name, const char *value);
-void qdev_prop_set(DeviceState *dev, const char *name, void *src, enum PropertyType type);
void qdev_prop_set_bit(DeviceState *dev, const char *name, bool value);
void qdev_prop_set_uint8(DeviceState *dev, const char *name, uint8_t value);
void qdev_prop_set_uint16(DeviceState *dev, const char *name, uint16_t value);
int qdev_prop_set_drive(DeviceState *dev, const char *name, BlockDriverState *value) QEMU_WARN_UNUSED_RESULT;
void qdev_prop_set_drive_nofail(DeviceState *dev, const char *name, BlockDriverState *value);
void qdev_prop_set_macaddr(DeviceState *dev, const char *name, uint8_t *value);
+void qdev_prop_set_enum(DeviceState *dev, const char *name, int value);
/* FIXME: Remove opaque pointer properties. */
void qdev_prop_set_ptr(DeviceState *dev, const char *name, void *value);
-void qdev_prop_set_defaults(DeviceState *dev, Property *props);
void qdev_prop_register_global_list(GlobalProperty *props);
void qdev_prop_set_globals(DeviceState *dev);
-
-static inline const char *qdev_fw_name(DeviceState *dev)
-{
- return dev->info->fw_name ? : dev->info->alias ? : dev->info->name;
-}
+void error_set_from_qdev_prop_error(Error **errp, int ret, DeviceState *dev,
+ Property *prop, const char *value);
char *qdev_get_fw_dev_path(DeviceState *dev);
+
/* This is a nasty hack to allow passing a NULL bus to qdev_create. */
extern struct BusInfo system_bus_info;
/**
- * @qdev_ref
- *
- * Increase the reference count of a device. A device cannot be freed as long
- * as its reference count is greater than zero.
- *
- * @dev - the device
+ * @qdev_property_add_static - add a @Property to a device referencing a
+ * field in a struct.
*/
-void qdev_ref(DeviceState *dev);
+void qdev_property_add_static(DeviceState *dev, Property *prop, Error **errp);
/**
- * @qdef_unref
+ * @qdev_machine_init
*
- * Decrease the reference count of a device. A device cannot be freed as long
- * as its reference count is greater than zero.
- *
- * @dev - the device
+ * Initialize platform devices before machine init. This is a hack until full
+ * support for composition is added.
*/
-void qdev_unref(DeviceState *dev);
+void qdev_machine_init(void);
/**
- * @qdev_property_add - add a new property to a device
- *
- * @dev - the device to add a property to
- *
- * @name - the name of the property. This can contain any character except for
- * a forward slash. In general, you should use hyphens '-' instead of
- * underscores '_' when naming properties.
- *
- * @type - the type name of the property. This namespace is pretty loosely
- * defined. Sub namespaces are constructed by using a prefix and then
- * to angle brackets. For instance, the type 'virtio-net-pci' in the
- * 'link' namespace would be 'link<virtio-net-pci>'.
- *
- * @get - the getter to be called to read a property. If this is NULL, then
- * the property cannot be read.
- *
- * @set - the setter to be called to write a property. If this is NULL,
- * then the property cannot be written.
- *
- * @release - called when the property is removed from the device. This is
- * meant to allow a property to free its opaque upon device
- * destruction. This may be NULL.
- *
- * @opaque - an opaque pointer to pass to the callbacks for the property
+ * @device_reset
*
- * @errp - returns an error if this function fails
+ * Reset a single device (by calling the reset method).
*/
-void qdev_property_add(DeviceState *dev, const char *name, const char *type,
- DevicePropertyAccessor *get, DevicePropertyAccessor *set,
- DevicePropertyRelease *release,
- void *opaque, Error **errp);
+void device_reset(DeviceState *dev);
-/**
- * @qdev_property_get - reads a property from a device
- *
- * @dev - the device
- *
- * @v - the visitor that will receive the property value. This should be an
- * Output visitor and the data will be written with @name as the name.
- *
- * @name - the name of the property
- *
- * @errp - returns an error if this function fails
- */
-void qdev_property_get(DeviceState *dev, Visitor *v, const char *name,
- Error **errp);
-
-/**
- * @qdev_property_set - writes a property to a device
- *
- * @dev - the device
- *
- * @v - the visitor that will be used to write the property value. This should
- * be an Input visitor and the data will be first read with @name as the
- * name and then written as the property value.
- *
- * @name - the name of the property
- *
- * @errp - returns an error if this function fails
- */
-void qdev_property_set(DeviceState *dev, Visitor *v, const char *name,
- Error **errp);
-
-/**
- * @qdev_property_get_type - returns the type of a property
- *
- * @dev - the device
- *
- * @name - the name of the property
- *
- * @errp - returns an error if this function fails
- *
- * Returns:
- * The type name of the property.
- */
-const char *qdev_property_get_type(DeviceState *dev, const char *name,
- Error **errp);
-
-/**
- * @qdev_property_add_legacy - add a legacy @Property to a device
- *
- * DO NOT USE THIS IN NEW CODE!
- */
-void qdev_property_add_legacy(DeviceState *dev, Property *prop, Error **errp);
-
-/**
- * @qdev_get_root - returns the root device of the composition tree
- *
- * Returns:
- * The root of the composition tree.
- */
-DeviceState *qdev_get_root(void);
-
-/**
- * @qdev_get_canonical_path - returns the canonical path for a device. This
- * is the path within the composition tree starting from the root.
- *
- * Returns:
- * The canonical path in the composition tree.
- */
-gchar *qdev_get_canonical_path(DeviceState *dev);
-
-/**
- * @qdev_resolve_path - resolves a path returning a device
- *
- * There are two types of supported paths--absolute paths and partial paths.
- *
- * Absolute paths are derived from the root device and can follow child<> or
- * link<> properties. Since they can follow link<> properties, they can be
- * arbitrarily long. Absolute paths look like absolute filenames and are
- * prefixed with a leading slash.
- *
- * Partial paths look like relative filenames. They do not begin with a
- * prefix. The matching rules for partial paths are subtle but designed to make
- * specifying devices easy. At each level of the composition tree, the partial
- * path is matched as an absolute path. The first match is not returned. At
- * least two matches are searched for. A successful result is only returned if
- * only one match is founded. If more than one match is found, a flag is
- * return to indicate that the match was ambiguous.
- *
- * @path - the path to resolve
- *
- * @ambiguous - returns true if the path resolution failed because of an
- * ambiguous match
- *
- * Returns:
- * The matched device or NULL on path lookup failure.
- */
-DeviceState *qdev_resolve_path(const char *path, bool *ambiguous);
+const VMStateDescription *qdev_get_vmsd(DeviceState *dev);
-/**
- * @qdev_property_add_child - Add a child property to a device
- *
- * Child properties form the composition tree. All devices need to be a child
- * of another device. Devices can only be a child of one device.
- *
- * There is no way for a child to determine what its parent is. It is not
- * a bidirectional relationship. This is by design.
- *
- * @dev - the device to add a property to
- *
- * @name - the name of the property
- *
- * @child - the child device
- *
- * @errp - if an error occurs, a pointer to an area to store the area
- */
-void qdev_property_add_child(DeviceState *dev, const char *name,
- DeviceState *child, Error **errp);
+const char *qdev_fw_name(DeviceState *dev);
-/**
- * @qdev_property_add_link - Add a link property to a device
- *
- * Links establish relationships between devices. Links are unidirectional
- * although two links can be combined to form a bidirectional relationship
- * between devices.
- *
- * Links form the graph in the device model.
- *
- * @dev - the device to add a property to
- *
- * @name - the name of the property
- *
- * @type - the qdev type of the link
- *
- * @child - a pointer to where the link device reference is stored
- *
- * @errp - if an error occurs, a pointer to an area to store the area
- */
-void qdev_property_add_link(DeviceState *dev, const char *name,
- const char *type, DeviceState **child,
- Error **errp);
+Object *qdev_get_machine(void);
-/**
- * @qdev_property_add_str
- *
- * Add a string property using getters/setters. This function will add a
- * property of type 'string'.
- *
- * @dev - the device to add a property to
- *
- * @name - the name of the property
- *
- * @get - the getter or NULL if the property is write-only. This function must
- * return a string to be freed by @g_free().
- *
- * @set - the setter or NULL if the property is read-only
- *
- * @errp - if an error occurs, a pointer to an area to store the error
- */
-void qdev_property_add_str(DeviceState *dev, const char *name,
- char *(*get)(DeviceState *, Error **),
- void (*set)(DeviceState *, const char *, Error **),
- Error **errp);
+/* FIXME: make this a link<> */
+void qdev_set_parent_bus(DeviceState *dev, BusState *bus);
-/**
- * @qdev_get_type
- *
- * Returns the string representation of the type of this object.
- *
- * @dev - the device
- *
- * @errp - if an error occurs, a pointer to an area to store the error
- *
- * Returns: a string representing the type. This must be freed by the caller
- * with g_free().
- */
-char *qdev_get_type(DeviceState *dev, Error **errp);
+extern int qdev_hotplug;
#endif
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