root / hw / qdev.h @ a9ff9df1
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#ifndef QDEV_H
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#define QDEV_H
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#include "hw.h" |
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#include "sys-queue.h" |
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typedef struct Property Property; |
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typedef struct PropertyInfo PropertyInfo; |
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typedef struct CompatProperty CompatProperty; |
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typedef struct DeviceInfo DeviceInfo; |
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typedef struct BusState BusState; |
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typedef struct BusInfo BusInfo; |
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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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struct DeviceState {
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char *id;
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DeviceInfo *info; |
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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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LIST_HEAD(, BusState) child_bus; |
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NICInfo *nd; |
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LIST_ENTRY(DeviceState) sibling; |
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}; |
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typedef void (*bus_dev_printfn)(Monitor *mon, DeviceState *dev, int indent); |
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struct BusInfo {
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const char *name; |
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size_t size; |
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bus_dev_printfn print_dev; |
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Property *props; |
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}; |
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struct BusState {
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DeviceState *parent; |
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BusInfo *info; |
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const char *name; |
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LIST_HEAD(, DeviceState) children; |
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LIST_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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void *defval;
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}; |
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enum PropertyType {
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PROP_TYPE_UNSPEC = 0,
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PROP_TYPE_UINT16, |
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PROP_TYPE_UINT32, |
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PROP_TYPE_TADDR, |
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PROP_TYPE_MACADDR, |
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PROP_TYPE_PTR, |
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}; |
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struct PropertyInfo {
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const char *name; |
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size_t size; |
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enum PropertyType type;
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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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}; |
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struct CompatProperty {
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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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}; |
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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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void qdev_init(DeviceState *dev);
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void qdev_free(DeviceState *dev);
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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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typedef void (*qdev_initfn)(DeviceState *dev, DeviceInfo *info); |
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typedef void (*SCSIAttachFn)(DeviceState *host, BlockDriverState *bdrv, |
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int unit);
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struct DeviceInfo {
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const char *name; |
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const char *alias; |
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const char *desc; |
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size_t size; |
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Property *props; |
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int no_user;
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/* Private to qdev / bus. */
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qdev_initfn init; |
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BusInfo *bus_info; |
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struct DeviceInfo *next;
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}; |
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void qdev_register(DeviceInfo *info);
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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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void scsi_bus_new(DeviceState *host, SCSIAttachFn attach);
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CharDriverState *qdev_init_chardev(DeviceState *dev); |
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BusState *qdev_get_parent_bus(DeviceState *dev); |
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/* Convery from a base type to a parent type, with compile time checking. */
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#ifdef __GNUC__
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#define DO_UPCAST(type, field, dev) ( __extension__ ( { \
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char __attribute__((unused)) offset_must_be_zero[ \
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-offsetof(type, field)]; \ |
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container_of(dev, type, field);})) |
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#else
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#define DO_UPCAST(type, field, dev) container_of(dev, type, field)
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#endif
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/*** BUS API. ***/
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BusState *qbus_create(BusInfo *info, DeviceState *parent, const char *name); |
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#define FROM_QBUS(type, dev) DO_UPCAST(type, qbus, dev)
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/*** monitor commands ***/
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void do_info_qtree(Monitor *mon);
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/*** qdev-properties.c ***/
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extern PropertyInfo qdev_prop_uint16;
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extern PropertyInfo qdev_prop_uint32;
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extern PropertyInfo qdev_prop_hex32;
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extern PropertyInfo qdev_prop_ptr;
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extern PropertyInfo qdev_prop_macaddr;
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/* Set properties between creation and init. */
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void *qdev_get_prop_ptr(DeviceState *dev, Property *prop);
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int qdev_prop_parse(DeviceState *dev, const char *name, const char *value); |
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void qdev_prop_set(DeviceState *dev, const char *name, void *src, enum PropertyType type); |
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void qdev_prop_set_uint16(DeviceState *dev, const char *name, uint16_t value); |
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void qdev_prop_set_uint32(DeviceState *dev, const char *name, uint32_t value); |
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/* FIXME: Remove opaque pointer properties. */
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void qdev_prop_set_ptr(DeviceState *dev, const char *name, void *value); |
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void qdev_prop_set_defaults(DeviceState *dev, Property *props);
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void qdev_prop_register_compat(CompatProperty *props);
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void qdev_prop_set_compat(DeviceState *dev);
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/* This is a nasty hack to allow passing a NULL bus to qdev_create. */
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extern struct BusInfo system_bus_info; |
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#endif
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