#ifndef QDEV_H #define QDEV_H #include "hw.h" #include "qemu-queue.h" #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 PropertyInfo PropertyInfo; typedef struct CompatProperty CompatProperty; typedef struct BusState BusState; typedef struct BusInfo BusInfo; enum DevState { DEV_STATE_CREATED = 1, DEV_STATE_INITIALIZED, }; enum { DEV_NVECTORS_UNSPECIFIED = -1, }; #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) 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; BusState *parent_bus; int num_gpio_out; qemu_irq *gpio_out; int num_gpio_in; qemu_irq *gpio_in; QLIST_HEAD(, BusState) child_bus; int num_child_bus; QTAILQ_ENTRY(DeviceState) sibling; int instance_id_alias; int alias_required_for_version; }; typedef void (*bus_dev_printfn)(Monitor *mon, DeviceState *dev, int indent); typedef char *(*bus_get_dev_path)(DeviceState *dev); /* * This callback is used to create Open Firmware device path in accordance with * OF spec http://forthworks.com/standards/of1275.pdf. Indicidual bus bindings * can be found here http://playground.sun.com/1275/bindings/. */ typedef char *(*bus_get_fw_dev_path)(DeviceState *dev); typedef int (qbus_resetfn)(BusState *bus); struct BusInfo { const char *name; size_t size; bus_dev_printfn print_dev; bus_get_dev_path get_dev_path; bus_get_fw_dev_path get_fw_dev_path; qbus_resetfn *reset; Property *props; }; struct BusState { DeviceState *parent; BusInfo *info; const char *name; int allow_hotplug; int qdev_allocated; QTAILQ_HEAD(ChildrenHead, DeviceState) children; QLIST_ENTRY(BusState) sibling; }; struct Property { const char *name; PropertyInfo *info; int offset; uint8_t bitnr; uint8_t qtype; int64_t defval; }; struct PropertyInfo { const char *name; const char *legacy_name; const char **enum_table; int64_t min; int64_t max; int (*parse)(DeviceState *dev, Property *prop, const char *str); int (*print)(DeviceState *dev, Property *prop, char *dest, size_t len); ObjectPropertyAccessor *get; ObjectPropertyAccessor *set; ObjectPropertyRelease *release; }; typedef struct GlobalProperty { const char *driver; const char *property; const char *value; QTAILQ_ENTRY(GlobalProperty) next; } GlobalProperty; /*** Board API. This should go away once we have a machine config file. ***/ 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); 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); bool qdev_machine_modified(void); 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. ***/ /* 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); BusState *qdev_get_parent_bus(DeviceState *dev); /*** BUS API. ***/ DeviceState *qdev_find_recursive(BusState *bus, const char *id); /* Returns 0 to walk children, > 0 to skip walk, < 0 to terminate walk. */ typedef int (qbus_walkerfn)(BusState *bus, void *opaque); typedef int (qdev_walkerfn)(DeviceState *dev, void *opaque); void qbus_create_inplace(BusState *bus, BusInfo *info, DeviceState *parent, const char *name); BusState *qbus_create(BusInfo *info, DeviceState *parent, const char *name); /* Returns > 0 if either devfn or busfn skip walk somewhere in cursion, * < 0 if either devfn or busfn terminate walk somewhere in cursion, * 0 otherwise. */ int qbus_walk_children(BusState *bus, qdev_walkerfn *devfn, qbus_walkerfn *busfn, void *opaque); int qdev_walk_children(DeviceState *dev, qdev_walkerfn *devfn, qbus_walkerfn *busfn, void *opaque); void qdev_reset_all(DeviceState *dev); void qbus_reset_all_fn(void *opaque); void qbus_free(BusState *bus); #define FROM_QBUS(type, dev) DO_UPCAST(type, qbus, dev) /* This should go away once we get rid of the NULL bus hack */ BusState *sysbus_get_default(void); /*** monitor commands ***/ void do_info_qtree(Monitor *mon); void do_info_qdm(Monitor *mon); int do_device_add(Monitor *mon, const QDict *qdict, QObject **ret_data); int do_device_del(Monitor *mon, const QDict *qdict, QObject **ret_data); /*** qdev-properties.c ***/ extern PropertyInfo qdev_prop_bit; extern PropertyInfo qdev_prop_uint8; extern PropertyInfo qdev_prop_uint16; extern PropertyInfo qdev_prop_uint32; extern PropertyInfo qdev_prop_int32; extern PropertyInfo qdev_prop_uint64; extern PropertyInfo qdev_prop_hex8; extern PropertyInfo qdev_prop_hex32; extern PropertyInfo qdev_prop_hex64; extern PropertyInfo qdev_prop_string; 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; #define DEFINE_PROP(_name, _state, _field, _prop, _type) { \ .name = (_name), \ .info = &(_prop), \ .offset = offsetof(_state, _field) \ + type_check(_type,typeof_field(_state, _field)), \ } #define DEFINE_PROP_DEFAULT(_name, _state, _field, _defval, _prop, _type) { \ .name = (_name), \ .info = &(_prop), \ .offset = offsetof(_state, _field) \ + type_check(_type,typeof_field(_state, _field)), \ .qtype = QTYPE_QINT, \ .defval = (_type)_defval, \ } #define DEFINE_PROP_BIT(_name, _state, _field, _bit, _defval) { \ .name = (_name), \ .info = &(qdev_prop_bit), \ .bitnr = (_bit), \ .offset = offsetof(_state, _field) \ + type_check(uint32_t,typeof_field(_state, _field)), \ .qtype = QTYPE_QBOOL, \ .defval = (bool)_defval, \ } #define DEFINE_PROP_UINT8(_n, _s, _f, _d) \ DEFINE_PROP_DEFAULT(_n, _s, _f, _d, qdev_prop_uint8, uint8_t) #define DEFINE_PROP_UINT16(_n, _s, _f, _d) \ DEFINE_PROP_DEFAULT(_n, _s, _f, _d, qdev_prop_uint16, uint16_t) #define DEFINE_PROP_UINT32(_n, _s, _f, _d) \ DEFINE_PROP_DEFAULT(_n, _s, _f, _d, qdev_prop_uint32, uint32_t) #define DEFINE_PROP_INT32(_n, _s, _f, _d) \ DEFINE_PROP_DEFAULT(_n, _s, _f, _d, qdev_prop_int32, int32_t) #define DEFINE_PROP_UINT64(_n, _s, _f, _d) \ DEFINE_PROP_DEFAULT(_n, _s, _f, _d, qdev_prop_uint64, uint64_t) #define DEFINE_PROP_HEX8(_n, _s, _f, _d) \ DEFINE_PROP_DEFAULT(_n, _s, _f, _d, qdev_prop_hex8, uint8_t) #define DEFINE_PROP_HEX32(_n, _s, _f, _d) \ DEFINE_PROP_DEFAULT(_n, _s, _f, _d, qdev_prop_hex32, uint32_t) #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 DEFINE_PROP_PTR(_n, _s, _f) \ DEFINE_PROP(_n, _s, _f, qdev_prop_ptr, void*) #define DEFINE_PROP_CHR(_n, _s, _f) \ DEFINE_PROP(_n, _s, _f, qdev_prop_chr, CharDriverState*) #define DEFINE_PROP_STRING(_n, _s, _f) \ DEFINE_PROP(_n, _s, _f, qdev_prop_string, char*) #define DEFINE_PROP_NETDEV(_n, _s, _f) \ DEFINE_PROP(_n, _s, _f, qdev_prop_netdev, VLANClientState*) #define DEFINE_PROP_VLAN(_n, _s, _f) \ DEFINE_PROP(_n, _s, _f, qdev_prop_vlan, VLANState*) #define DEFINE_PROP_DRIVE(_n, _s, _f) \ 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_END_OF_LIST() \ {} /* Set properties between creation and init. */ 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_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); void qdev_prop_set_uint32(DeviceState *dev, const char *name, uint32_t value); void qdev_prop_set_int32(DeviceState *dev, const char *name, int32_t value); void qdev_prop_set_uint64(DeviceState *dev, const char *name, uint64_t value); void qdev_prop_set_string(DeviceState *dev, const char *name, char *value); void qdev_prop_set_chr(DeviceState *dev, const char *name, CharDriverState *value); void qdev_prop_set_netdev(DeviceState *dev, const char *name, VLANClientState *value); void qdev_prop_set_vlan(DeviceState *dev, const char *name, VLANState *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); 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_property_add_static - add a @Property to a device referencing a * field in a struct. */ void qdev_property_add_static(DeviceState *dev, Property *prop, Error **errp); /** * @qdev_machine_init * * Initialize platform devices before machine init. This is a hack until full * support for composition is added. */ void qdev_machine_init(void); /** * @device_reset * * Reset a single device (by calling the reset method). */ void device_reset(DeviceState *dev); const VMStateDescription *qdev_get_vmsd(DeviceState *dev); const char *qdev_fw_name(DeviceState *dev); BusInfo *qdev_get_bus_info(DeviceState *dev); Property *qdev_get_props(DeviceState *dev); Object *qdev_get_machine(void); /* FIXME: make this a link<> */ void qdev_set_parent_bus(DeviceState *dev, BusState *bus); extern int qdev_hotplug; #endif