#include <linux/list.h>
-/* #define DEBUG_EFI */
+int __efi_entry_check(void);
+int __efi_exit_check(void);
+const char *__efi_nesting_inc(void);
+const char *__efi_nesting_dec(void);
-#ifdef DEBUG_EFI
-#define EFI_ENTRY(format, ...) do { \
- efi_restore_gd(); \
- printf("EFI: Entry %s(" format ")\n", __func__, ##__VA_ARGS__); \
- } while(0)
-#else
+/*
+ * Enter the u-boot world from UEFI:
+ */
#define EFI_ENTRY(format, ...) do { \
- efi_restore_gd(); \
+ assert(__efi_entry_check()); \
+ debug("%sEFI: Entry %s(" format ")\n", __efi_nesting_inc(), \
+ __func__, ##__VA_ARGS__); \
} while(0)
-#endif
-#define EFI_EXIT(ret) efi_exit_func(ret);
+/*
+ * Exit the u-boot world back to UEFI:
+ */
+#define EFI_EXIT(ret) ({ \
+ typeof(ret) _r = ret; \
+ debug("%sEFI: Exit: %s: %u\n", __efi_nesting_dec(), \
+ __func__, (u32)((uintptr_t) _r & ~EFI_ERROR_MASK)); \
+ assert(__efi_exit_check()); \
+ _r; \
+ })
+
+/*
+ * Callback into UEFI world from u-boot:
+ */
+#define EFI_CALL(exp) do { \
+ debug("%sEFI: Call: %s\n", __efi_nesting_inc(), #exp); \
+ assert(__efi_exit_check()); \
+ exp; \
+ assert(__efi_entry_check()); \
+ debug("%sEFI: Return From: %s\n", __efi_nesting_dec(), #exp); \
+ } while(0)
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 const struct efi_simple_input_interface efi_con_in;
+extern struct efi_simple_input_interface efi_con_in;
extern const struct efi_console_control_protocol efi_console_control;
+extern const struct efi_device_path_to_text_protocol efi_device_path_to_text;
extern const efi_guid_t efi_guid_console_control;
extern const efi_guid_t efi_guid_device_path;
extern const efi_guid_t efi_guid_loaded_image;
+extern const efi_guid_t efi_guid_device_path_to_text_protocol;
extern unsigned int __efi_runtime_start, __efi_runtime_stop;
extern unsigned int __efi_runtime_rel_start, __efi_runtime_rel_stop;
-/*
- * While UEFI objects can have callbacks, you can also call functions on
- * protocols (classes) themselves. This struct maps a protocol GUID to its
- * interface (usually a struct with callback functions).
- */
-struct efi_class_map {
- const efi_guid_t *guid;
- const void *interface;
-};
-
/*
* When the UEFI payload wants to open a protocol on an object to get its
* interface (usually a struct with callback functions), this struct maps the
- * protocol GUID to the respective protocol handler open function for that
- * object protocol combination.
- */
+ * protocol GUID to the respective protocol interface */
struct efi_handler {
const efi_guid_t *guid;
- efi_status_t (EFIAPI *open)(void *handle,
- efi_guid_t *protocol, void **protocol_interface,
- void *agent_handle, void *controller_handle,
- uint32_t attributes);
+ void *protocol_interface;
};
/*
struct efi_object {
/* Every UEFI object is part of a global object list */
struct list_head link;
- /* We support up to 4 "protocols" an object can be accessed through */
- struct efi_handler protocols[4];
+ /* We support up to 8 "protocols" an object can be accessed through */
+ struct efi_handler protocols[8];
/* 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
+ *
+ * @type: Type of event, see efi_create_event
+ * @notify_tpl: Task priority level of notifications
+ * @trigger_time: Period of the timer
+ * @trigger_next: Next time to trigger the timer
+ * @nofify_function: Function to call when the event is triggered
+ * @notify_context: Data to be passed to the notify function
+ * @trigger_type: Type of timer, see efi_set_timer
+ * @signaled: The notify function was already called
+ */
+struct efi_event {
+ uint32_t type;
+ UINTN notify_tpl;
+ void (EFIAPI *notify_function)(struct efi_event *event, void *context);
+ void *notify_context;
+ u64 trigger_next;
+ u64 trigger_time;
+ enum efi_timer_delay trigger_type;
+ int signaled;
+};
+
+
/* This list contains all UEFI objects we know of */
extern struct list_head efi_obj_list;
+/* Called by bootefi to make console interface available */
+int efi_console_register(void);
/* Called by bootefi to make all disk storage accessible as EFI objects */
int efi_disk_register(void);
/* Called by bootefi to make GOP (graphical) interface available */
int efi_gop_register(void);
-/*
- * Stub implementation for a protocol opener that just returns the handle as
- * interface
- */
-efi_status_t efi_return_handle(void *handle,
- efi_guid_t *protocol, void **protocol_interface,
- void *agent_handle, void *controller_handle,
- uint32_t attributes);
+/* Called by bootefi to make the network interface available */
+int efi_net_register(void **handle);
+/* Called by bootefi to make SMBIOS tables available */
+void efi_smbios_register(void);
+
+/* Called by networking code to memorize the dhcp ack package */
+void efi_net_set_dhcp_ack(void *pkt, int len);
+
/* Called from places to check whether a timer expired */
void efi_timer_check(void);
/* PE loader implementation */
void *efi_load_pe(void *efi, struct efi_loaded_image *loaded_image_info);
/* Called once to store the pristine gd pointer */
void efi_save_gd(void);
-/* Called from EFI_ENTRY on callback entry to put gd into the gd register */
+/* Special case handler for error/abort that just tries to dtrt to get
+ * back to u-boot world */
void efi_restore_gd(void);
-/* Called from EFI_EXIT on callback exit to restore the gd register */
-efi_status_t efi_exit_func(efi_status_t ret);
/* Call this to relocate the runtime section to an address space */
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);
+/* Call this to create an event */
+efi_status_t efi_create_event(uint32_t type, UINTN notify_tpl,
+ void (EFIAPI *notify_function) (
+ struct efi_event *event,
+ void *context),
+ void *notify_context, struct efi_event **event);
+/* Call this to set a timer */
+efi_status_t efi_set_timer(struct efi_event *event, enum efi_timer_delay type,
+ uint64_t trigger_time);
+/* Call this to signal an event */
+void efi_signal_event(struct efi_event *event);
/* Generic EFI memory allocator, call this to get memory */
void *efi_alloc(uint64_t len, int memory_type);
/* More specific EFI memory allocator, called by EFI payloads */
efi_status_t efi_allocate_pages(int type, int memory_type, unsigned long pages,
uint64_t *memory);
-/* EFI memory free function. Not implemented today */
+/* EFI memory free function. */
efi_status_t efi_free_pages(uint64_t memory, unsigned long pages);
+/* EFI memory allocator for small allocations */
+efi_status_t efi_allocate_pool(int pool_type, unsigned long size,
+ void **buffer);
+/* EFI pool memory free function. */
+efi_status_t efi_free_pool(void *buffer);
/* Returns the EFI memory map */
efi_status_t efi_get_memory_map(unsigned long *memory_map_size,
struct efi_mem_desc *memory_map,
bool overlap_only_ram);
/* Called by board init to initialize the EFI memory map */
int efi_memory_init(void);
+/* Adds new or overrides configuration table entry to the system table */
+efi_status_t efi_install_configuration_table(const efi_guid_t *guid, void *table);
+
+#ifdef CONFIG_EFI_LOADER_BOUNCE_BUFFER
+extern void *efi_bounce_buffer;
+#define EFI_LOADER_BOUNCE_BUFFER_SIZE (64 * 1024 * 1024)
+#endif
/* Convert strings from normal C strings to uEFI strings */
-static inline void ascii2unicode(u16 *unicode, char *ascii)
+static inline void ascii2unicode(u16 *unicode, const char *ascii)
{
while (*ascii)
*(unicode++) = *(ascii++);
}
+static inline int guidcmp(const efi_guid_t *g1, const efi_guid_t *g2)
+{
+ return memcmp(g1, g2, sizeof(efi_guid_t));
+}
+
/*
* Use these to indicate that your code / data should go into the EFI runtime
* section and thus still be available when the OS is running
*/
-#define EFI_RUNTIME_DATA __attribute__ ((section ("efi_runtime_data")))
-#define EFI_RUNTIME_TEXT __attribute__ ((section ("efi_runtime_text")))
+#define __efi_runtime_data __attribute__ ((section ("efi_runtime_data")))
+#define __efi_runtime __attribute__ ((section ("efi_runtime_text")))
+
+/* Call this with mmio_ptr as the _pointer_ to a pointer to an MMIO region
+ * to make it available at runtime */
+void efi_add_runtime_mmio(void *mmio_ptr, u64 len);
+
+/* Boards may provide the functions below to implement RTS functionality */
+
+void __efi_runtime EFIAPI efi_reset_system(
+ enum efi_reset_type reset_type,
+ efi_status_t reset_status,
+ unsigned long data_size, void *reset_data);
+void efi_reset_system_init(void);
+
+efi_status_t __efi_runtime EFIAPI efi_get_time(
+ struct efi_time *time,
+ struct efi_time_cap *capabilities);
+void efi_get_time_init(void);
#else /* defined(EFI_LOADER) && !defined(CONFIG_SPL_BUILD) */
/* Without CONFIG_EFI_LOADER we don't have a runtime section, stub it out */
-#define EFI_RUNTIME_DATA
-#define EFI_RUNTIME_TEXT
+#define __efi_runtime_data
+#define __efi_runtime
+static inline void efi_add_runtime_mmio(void *mmio_ptr, u64 len) { }
/* No loader configured, stub out EFI_ENTRY */
static inline void efi_restore_gd(void) { }
static inline void efi_set_bootdev(const char *dev, const char *devnr,
const char *path) { }
+static inline void efi_net_set_dhcp_ack(void *pkt, int len) { }
#endif
projects / people / ms / u-boot.git / blobdiff