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hw: move headers to include/
Many of these should be cleaned up with proper qdev-/QOM-ification. Right now there are many catch-all headers in include/hw/ARCH depending on cpu.h, and this makes it necessary to compile these files per-target. However, fixing this does not belong in these patches. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Paolo Bonzini
parent
bb585a784e
commit
0d09e41a51
511 changed files with 829 additions and 830 deletions
299
include/hw/qdev-core.h
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299
include/hw/qdev-core.h
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#ifndef QDEV_CORE_H
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#define QDEV_CORE_H
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#include "qemu/queue.h"
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#include "qemu/option.h"
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#include "qemu/typedefs.h"
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#include "qom/object.h"
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#include "hw/irq.h"
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#include "qapi/error.h"
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enum {
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DEV_NVECTORS_UNSPECIFIED = -1,
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};
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#define TYPE_DEVICE "device"
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#define DEVICE(obj) OBJECT_CHECK(DeviceState, (obj), TYPE_DEVICE)
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#define DEVICE_CLASS(klass) OBJECT_CLASS_CHECK(DeviceClass, (klass), TYPE_DEVICE)
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#define DEVICE_GET_CLASS(obj) OBJECT_GET_CLASS(DeviceClass, (obj), TYPE_DEVICE)
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typedef int (*qdev_initfn)(DeviceState *dev);
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typedef int (*qdev_event)(DeviceState *dev);
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typedef void (*qdev_resetfn)(DeviceState *dev);
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typedef void (*DeviceRealize)(DeviceState *dev, Error **errp);
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typedef void (*DeviceUnrealize)(DeviceState *dev, Error **errp);
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struct VMStateDescription;
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/**
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* DeviceClass:
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* @props: Properties accessing state fields.
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* @realize: Callback function invoked when the #DeviceState:realized
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* property is changed to %true. The default invokes @init if not %NULL.
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* @unrealize: Callback function invoked when the #DeviceState:realized
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* property is changed to %false.
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* @init: Callback function invoked when the #DeviceState::realized property
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* is changed to %true. Deprecated, new types inheriting directly from
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* TYPE_DEVICE should use @realize instead, new leaf types should consult
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* their respective parent type.
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*
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* # Realization #
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* Devices are constructed in two stages,
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* 1) object instantiation via object_initialize() and
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* 2) device realization via #DeviceState:realized property.
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* The former may not fail (it might assert or exit), the latter may return
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* error information to the caller and must be re-entrant.
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* Trivial field initializations should go into #TypeInfo.instance_init.
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* Operations depending on @props static properties should go into @realize.
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* After successful realization, setting static properties will fail.
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*
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* As an interim step, the #DeviceState:realized property is set by deprecated
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* functions qdev_init() and qdev_init_nofail().
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* In the future, devices will propagate this state change to their children
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* and along busses they expose.
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* The point in time will be deferred to machine creation, so that values
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* set in @realize will not be introspectable beforehand. Therefore devices
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* must not create children during @realize; they should initialize them via
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* object_initialize() in their own #TypeInfo.instance_init and forward the
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* realization events appropriately.
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*
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* The @init callback is considered private to a particular bus implementation
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* (immediate abstract child types of TYPE_DEVICE). Derived leaf types set an
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* "init" callback on their parent class instead.
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*
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* Any type may override the @realize and/or @unrealize callbacks but needs
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* to call the parent type's implementation if keeping their functionality
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* is desired. Refer to QOM documentation for further discussion and examples.
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*
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* <note>
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* <para>
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* If a type derived directly from TYPE_DEVICE implements @realize, it does
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* not need to implement @init and therefore does not need to store and call
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* #DeviceClass' default @realize callback.
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* For other types consult the documentation and implementation of the
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* respective parent types.
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* </para>
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* </note>
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*/
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typedef struct DeviceClass {
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/*< private >*/
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ObjectClass parent_class;
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/*< public >*/
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const char *fw_name;
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const char *desc;
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Property *props;
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int no_user;
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/* callbacks */
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void (*reset)(DeviceState *dev);
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DeviceRealize realize;
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DeviceUnrealize unrealize;
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/* device state */
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const struct VMStateDescription *vmsd;
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/* Private to qdev / bus. */
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qdev_initfn init; /* TODO remove, once users are converted to realize */
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qdev_event unplug;
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qdev_event exit;
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const char *bus_type;
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} DeviceClass;
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/**
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* DeviceState:
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* @realized: Indicates whether the device has been fully constructed.
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*
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* This structure should not be accessed directly. We declare it here
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* so that it can be embedded in individual device state structures.
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*/
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struct DeviceState {
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/*< private >*/
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Object parent_obj;
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/*< public >*/
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const char *id;
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bool realized;
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QemuOpts *opts;
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int hotplugged;
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BusState *parent_bus;
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int num_gpio_out;
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qemu_irq *gpio_out;
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int num_gpio_in;
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qemu_irq *gpio_in;
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QLIST_HEAD(, BusState) child_bus;
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int num_child_bus;
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int instance_id_alias;
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int alias_required_for_version;
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};
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#define TYPE_BUS "bus"
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#define BUS(obj) OBJECT_CHECK(BusState, (obj), TYPE_BUS)
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#define BUS_CLASS(klass) OBJECT_CLASS_CHECK(BusClass, (klass), TYPE_BUS)
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#define BUS_GET_CLASS(obj) OBJECT_GET_CLASS(BusClass, (obj), TYPE_BUS)
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struct BusClass {
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ObjectClass parent_class;
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/* FIXME first arg should be BusState */
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void (*print_dev)(Monitor *mon, DeviceState *dev, int indent);
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char *(*get_dev_path)(DeviceState *dev);
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/*
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* This callback is used to create Open Firmware device path in accordance
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* with OF spec http://forthworks.com/standards/of1275.pdf. Individual bus
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* bindings can be found at http://playground.sun.com/1275/bindings/.
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*/
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char *(*get_fw_dev_path)(DeviceState *dev);
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int (*reset)(BusState *bus);
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/* maximum devices allowed on the bus, 0: no limit. */
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int max_dev;
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};
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typedef struct BusChild {
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DeviceState *child;
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int index;
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QTAILQ_ENTRY(BusChild) sibling;
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} BusChild;
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/**
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* BusState:
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*/
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struct BusState {
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Object obj;
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DeviceState *parent;
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const char *name;
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int allow_hotplug;
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int max_index;
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QTAILQ_HEAD(ChildrenHead, BusChild) children;
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QLIST_ENTRY(BusState) sibling;
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};
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struct Property {
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const char *name;
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PropertyInfo *info;
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int offset;
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uint8_t bitnr;
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uint8_t qtype;
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int64_t defval;
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int arrayoffset;
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PropertyInfo *arrayinfo;
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int arrayfieldsize;
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};
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struct PropertyInfo {
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const char *name;
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const char *legacy_name;
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const char **enum_table;
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int (*parse)(DeviceState *dev, Property *prop, const char *str);
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int (*print)(DeviceState *dev, Property *prop, char *dest, size_t len);
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ObjectPropertyAccessor *get;
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ObjectPropertyAccessor *set;
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ObjectPropertyRelease *release;
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};
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typedef struct GlobalProperty {
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const char *driver;
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const char *property;
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const char *value;
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QTAILQ_ENTRY(GlobalProperty) next;
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} GlobalProperty;
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/*** Board API. This should go away once we have a machine config file. ***/
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DeviceState *qdev_create(BusState *bus, const char *name);
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DeviceState *qdev_try_create(BusState *bus, const char *name);
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int qdev_init(DeviceState *dev) QEMU_WARN_UNUSED_RESULT;
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void qdev_init_nofail(DeviceState *dev);
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void qdev_set_legacy_instance_id(DeviceState *dev, int alias_id,
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int required_for_version);
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void qdev_unplug(DeviceState *dev, Error **errp);
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void qdev_free(DeviceState *dev);
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int qdev_simple_unplug_cb(DeviceState *dev);
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void qdev_machine_creation_done(void);
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bool qdev_machine_modified(void);
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qemu_irq qdev_get_gpio_in(DeviceState *dev, int n);
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void qdev_connect_gpio_out(DeviceState *dev, int n, qemu_irq pin);
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BusState *qdev_get_child_bus(DeviceState *dev, const char *name);
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/*** Device API. ***/
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/* Register device properties. */
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/* GPIO inputs also double as IRQ sinks. */
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void qdev_init_gpio_in(DeviceState *dev, qemu_irq_handler handler, int n);
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void qdev_init_gpio_out(DeviceState *dev, qemu_irq *pins, int n);
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BusState *qdev_get_parent_bus(DeviceState *dev);
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/*** BUS API. ***/
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DeviceState *qdev_find_recursive(BusState *bus, const char *id);
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/* Returns 0 to walk children, > 0 to skip walk, < 0 to terminate walk. */
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typedef int (qbus_walkerfn)(BusState *bus, void *opaque);
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typedef int (qdev_walkerfn)(DeviceState *dev, void *opaque);
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void qbus_create_inplace(void *bus, const char *typename,
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DeviceState *parent, const char *name);
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BusState *qbus_create(const char *typename, DeviceState *parent, const char *name);
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/* Returns > 0 if either devfn or busfn skip walk somewhere in cursion,
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* < 0 if either devfn or busfn terminate walk somewhere in cursion,
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* 0 otherwise. */
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int qbus_walk_children(BusState *bus, qdev_walkerfn *devfn,
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qbus_walkerfn *busfn, void *opaque);
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int qdev_walk_children(DeviceState *dev, qdev_walkerfn *devfn,
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qbus_walkerfn *busfn, void *opaque);
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void qdev_reset_all(DeviceState *dev);
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/**
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* @qbus_reset_all:
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* @bus: Bus to be reset.
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*
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* Reset @bus and perform a bus-level ("hard") reset of all devices connected
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* to it, including recursive processing of all buses below @bus itself. A
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* hard reset means that qbus_reset_all will reset all state of the device.
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* For PCI devices, for example, this will include the base address registers
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* or configuration space.
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*/
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void qbus_reset_all(BusState *bus);
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void qbus_reset_all_fn(void *opaque);
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void qbus_free(BusState *bus);
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#define FROM_QBUS(type, dev) DO_UPCAST(type, qbus, dev)
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/* This should go away once we get rid of the NULL bus hack */
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BusState *sysbus_get_default(void);
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char *qdev_get_fw_dev_path(DeviceState *dev);
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/**
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* @qdev_machine_init
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*
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* Initialize platform devices before machine init. This is a hack until full
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* support for composition is added.
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*/
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void qdev_machine_init(void);
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/**
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* @device_reset
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*
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* Reset a single device (by calling the reset method).
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*/
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void device_reset(DeviceState *dev);
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const struct VMStateDescription *qdev_get_vmsd(DeviceState *dev);
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const char *qdev_fw_name(DeviceState *dev);
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Object *qdev_get_machine(void);
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/* FIXME: make this a link<> */
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void qdev_set_parent_bus(DeviceState *dev, BusState *bus);
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extern int qdev_hotplug;
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char *qdev_get_dev_path(DeviceState *dev);
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#endif
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