diff options
author | Paul Brook <paul@codesourcery.com> | 2009-05-14 22:35:06 +0100 |
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committer | Paul Brook <paul@codesourcery.com> | 2009-05-14 22:35:06 +0100 |
commit | 4d6ae6741e4fb3bf809466a5afaa7f5183dc6ffd (patch) | |
tree | f1f0a5f9cddf8e3286be652d76517eea91030834 /hw | |
parent | aae9460e244c7abe70b72ff374b3aa102bb09691 (diff) | |
download | qemu-4d6ae6741e4fb3bf809466a5afaa7f5183dc6ffd.zip qemu-4d6ae6741e4fb3bf809466a5afaa7f5183dc6ffd.tar.gz qemu-4d6ae6741e4fb3bf809466a5afaa7f5183dc6ffd.tar.bz2 |
qdev child bus support
Signed-off-by: Paul Brook <paul@codesourcery.com>
Diffstat (limited to 'hw')
-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); |