efi_loader: helper function to add EFI object to list

[u-boot] / include / efi_loader.h

diff --git a/include/efi_loader.h b/include/efi_loader.h
index e3d1c359301a6942be1765267fb9386efdfa88c4..c0caabddb122e696930170f6315bd153b57ede1b 100644 (file)
--- a/include/efi_loader.h
+++ b/include/efi_loader.h
@@ -78,9 +78,9 @@ const char *__efi_nesting_dec(void);
 extern struct efi_runtime_services efi_runtime_services;
 extern struct efi_system_table systab;
 
-extern const struct efi_simple_text_output_protocol efi_con_out;
+extern struct efi_simple_text_output_protocol efi_con_out;
 extern struct efi_simple_input_interface efi_con_in;
-extern const struct efi_console_control_protocol efi_console_control;
+extern struct efi_console_control_protocol efi_console_control;
 extern const struct efi_device_path_to_text_protocol efi_device_path_to_text;
 
 uint16_t *efi_dp_str(struct efi_device_path *dp);
@@ -101,6 +101,8 @@ extern unsigned int __efi_runtime_rel_start, __efi_runtime_rel_stop;
  * interface (usually a struct with callback functions), this struct maps the
  * protocol GUID to the respective protocol interface */
 struct efi_handler {
+       /* Link to the list of protocols of a handle */
+       struct list_head link;
        const efi_guid_t *guid;
        void *protocol_interface;
 };
@@ -115,20 +117,12 @@ struct efi_handler {
 struct efi_object {
        /* Every UEFI object is part of a global object list */
        struct list_head link;
-       /* We support up to 16 "protocols" an object can be accessed through */
-       struct efi_handler protocols[16];
+       /* The list of protocols */
+       struct list_head protocols;
        /* The object spawner can either use this for data or as identifier */
        void *handle;
 };
 
-#define EFI_PROTOCOL_OBJECT(_guid, _protocol) (struct efi_object){     \
-       .protocols = {{                                                 \
-               .guid = &(_guid),                                       \
-               .protocol_interface = (void *)(_protocol),              \
-       }},                                                             \
-       .handle = (void *)(_protocol),                                  \
-}
-
 /**
  * struct efi_event
  *
@@ -192,6 +186,24 @@ void efi_restore_gd(void);
 void efi_runtime_relocate(ulong offset, struct efi_mem_desc *map);
 /* Call this to set the current device name */
 void efi_set_bootdev(const char *dev, const char *devnr, const char *path);
+/* Add a new object to the object list. */
+void efi_add_handle(struct efi_object *obj);
+/* Create handle */
+efi_status_t efi_create_handle(void **handle);
+/* Call this to validate a handle and find the EFI object for it */
+struct efi_object *efi_search_obj(const void *handle);
+/* Find a protocol on a handle */
+efi_status_t efi_search_protocol(const void *handle,
+                                const efi_guid_t *protocol_guid,
+                                struct efi_handler **handler);
+/* Install new protocol on a handle */
+efi_status_t efi_add_protocol(const void *handle, const efi_guid_t *protocol,
+                             void *protocol_interface);
+/* Delete protocol from a handle */
+efi_status_t efi_remove_protocol(const void *handle, const efi_guid_t *protocol,
+                                void *protocol_interface);
+/* Delete all protocols from a handle */
+efi_status_t efi_remove_all_protocols(const void *handle);
 /* Call this to create an event */
 efi_status_t efi_create_event(uint32_t type, efi_uintn_t notify_tpl,
                              void (EFIAPI *notify_function) (
@@ -250,7 +262,8 @@ extern void *efi_bounce_buffer;
 
 
 struct efi_device_path *efi_dp_next(const struct efi_device_path *dp);
-int efi_dp_match(struct efi_device_path *a, struct efi_device_path *b);
+int efi_dp_match(const struct efi_device_path *a,
+                const struct efi_device_path *b);
 struct efi_object *efi_dp_find_obj(struct efi_device_path *dp,
                                   struct efi_device_path **rem);
 unsigned efi_dp_size(const struct efi_device_path *dp);