68 lines
2.1 KiB
C
68 lines
2.1 KiB
C
#ifndef QDEV_H
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#define QDEV_H
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#include "hw.h"
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typedef struct DeviceType DeviceType;
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typedef struct DeviceProperty DeviceProperty;
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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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{
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const char *name;
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DeviceType *type;
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void *bus;
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DeviceProperty *props;
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int num_irq_sink;
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qemu_irq *irq_sink;
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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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};
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/*** Board API. This should go away once we have a machine config file. ***/
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DeviceState *qdev_create(void *bus, const char *name);
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void qdev_init(DeviceState *dev);
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/* Set properties between creation and init. */
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void qdev_set_prop_int(DeviceState *dev, const char *name, int value);
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void qdev_set_prop_ptr(DeviceState *dev, const char *name, void *value);
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qemu_irq qdev_get_irq_sink(DeviceState *dev, int n);
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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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/*** Device API. ***/
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typedef void (*qdev_initfn)(DeviceState *dev, void *opaque);
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DeviceType *qdev_register(const char *name, int size, qdev_initfn init,
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void *opaque);
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/* Register device properties. */
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void qdev_init_irq_sink(DeviceState *dev, qemu_irq_handler handler, int nirq);
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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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CharDriverState *qdev_init_chardev(DeviceState *dev);
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void *qdev_get_bus(DeviceState *dev);
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uint64_t qdev_get_prop_int(DeviceState *dev, const char *name, uint64_t def);
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void *qdev_get_prop_ptr(DeviceState *dev, const char *name);
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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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#endif
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