diff options
| -rw-r--r-- | hw/qdev.c | 30 | ||||
| -rw-r--r-- | hw/qdev.h | 6 |
2 files changed, 36 insertions, 0 deletions
@@ -46,6 +46,12 @@ struct DeviceType { DeviceType *next; }; +struct ChildBusList { + const char *name; + void *ptr; + ChildBusList *next; +}; + static DeviceType *device_type_list; /* Register a new device type. */ @@ -235,3 +241,27 @@ BlockDriverState *qdev_init_bdrv(DeviceState *dev, BlockInterfaceType type) } return drives_table[index].bdrv; } + +void *qdev_get_child_bus(DeviceState *dev, const char *name) +{ + ChildBusList *bus; + + for (bus = dev->child_bus; bus; bus = bus->next) { + if (strcmp(name, bus->name) == 0) { + return bus->ptr; + } + } + return NULL; +} + +void qdev_attach_child_bus(DeviceState *dev, const char *name, void *bus) +{ + ChildBusList *p; + + assert(!qdev_get_child_bus(dev, name)); + p = qemu_mallocz(sizeof(*p)); + p->name = qemu_strdup(name); + p->ptr = bus; + p->next = dev->child_bus; + dev->child_bus = p; +} @@ -7,6 +7,8 @@ typedef struct DeviceType DeviceType; typedef struct DeviceProperty DeviceProperty; +typedef struct ChildBusList ChildBusList; + /* This structure should not be accessed directly. We declare it here so that it can be embedded in individual device state structures. */ struct DeviceState @@ -21,6 +23,7 @@ struct DeviceState qemu_irq *gpio_out; int num_gpio_in; qemu_irq *gpio_in; + ChildBusList *child_bus; }; /*** Board API. This should go away once we have a machine config file. ***/ @@ -36,6 +39,8 @@ qemu_irq qdev_get_irq_sink(DeviceState *dev, int n); qemu_irq qdev_get_gpio_in(DeviceState *dev, int n); void qdev_connect_gpio_out(DeviceState *dev, int n, qemu_irq pin); +void *qdev_get_child_bus(DeviceState *dev, const char *name); + /*** Device API. ***/ typedef void (*qdev_initfn)(DeviceState *dev, void *opaque); @@ -47,6 +52,7 @@ DeviceType *qdev_register(const char *name, int size, qdev_initfn init, void qdev_init_irq_sink(DeviceState *dev, qemu_irq_handler handler, int nirq); 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); +void qdev_attach_child_bus(DeviceState *dev, const char *name, void *bus); CharDriverState *qdev_init_chardev(DeviceState *dev); |