diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/dm/device.h | 25 | ||||
| -rw-r--r-- | include/dm/tag.h | 13 |
2 files changed, 37 insertions, 1 deletions
diff --git a/include/dm/device.h b/include/dm/device.h index 5bdb10653f8..12c6ba37ff3 100644 --- a/include/dm/device.h +++ b/include/dm/device.h @@ -11,6 +11,7 @@ #define _DM_DEVICE_H #include <dm/ofnode.h> +#include <dm/tag.h> #include <dm/uclass-id.h> #include <fdtdec.h> #include <linker_lists.h> @@ -547,6 +548,30 @@ void *dev_get_parent_priv(const struct udevice *dev); void *dev_get_uclass_priv(const struct udevice *dev); /** + * dev_get_attach_ptr() - Get the value of an attached pointed tag + * + * The tag is assumed to hold a pointer, if it exists + * + * @dev: Device to look at + * @tag: Tag to access + * @return value of tag, or NULL if there is no tag of this type + */ +void *dev_get_attach_ptr(const struct udevice *dev, enum dm_tag_t tag); + +/** + * dev_get_attach_size() - Get the size of an attached tag + * + * Core tags have an automatic-allocation mechanism where the allocated size is + * defined by the device, parent or uclass. This returns the size associated + * with a particular tag + * + * @dev: Device to look at + * @tag: Tag to access + * @return size of auto-allocated data, 0 if none + */ +int dev_get_attach_size(const struct udevice *dev, enum dm_tag_t tag); + +/** * dev_get_parent() - Get the parent of a device * * @child: Child to check diff --git a/include/dm/tag.h b/include/dm/tag.h index 54fc31eb153..9cb5d68f0a3 100644 --- a/include/dm/tag.h +++ b/include/dm/tag.h @@ -13,8 +13,19 @@ struct udevice; enum dm_tag_t { + /* Types of core tags that can be attached to devices */ + DM_TAG_PLAT, + DM_TAG_PARENT_PLAT, + DM_TAG_UC_PLAT, + + DM_TAG_PRIV, + DM_TAG_PARENT_PRIV, + DM_TAG_UC_PRIV, + DM_TAG_DRIVER_DATA, + DM_TAG_ATTACH_COUNT, + /* EFI_LOADER */ - DM_TAG_EFI = 0, + DM_TAG_EFI = DM_TAG_ATTACH_COUNT, DM_TAG_COUNT, }; |