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freebsd/stand/efi/include/efilib.h
Toomas Soome 6564182252 loader.efi: efi variable rework and lsefi command added
This update does add diag and debug capabilities to interpret the efi
variables, configuration and protocols (lsefi).

The side effect is that we add/update bunch of related headers.
2019-01-03 20:27:50 +00:00

140 lines
5.1 KiB
C

/*-
* Copyright (c) 2000 Doug Rabson
* Copyright (c) 2006 Marcel Moolenaar
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
#ifndef _LOADER_EFILIB_H
#define _LOADER_EFILIB_H
#include <stand.h>
#include <stdbool.h>
#include <sys/queue.h>
extern EFI_HANDLE IH;
extern EFI_SYSTEM_TABLE *ST;
extern EFI_BOOT_SERVICES *BS;
extern EFI_RUNTIME_SERVICES *RS;
extern struct devsw efipart_fddev;
extern struct devsw efipart_cddev;
extern struct devsw efipart_hddev;
extern struct devsw efinet_dev;
extern struct netif_driver efinetif;
/* EFI block device data, included here to help efi_zfs_probe() */
typedef STAILQ_HEAD(pdinfo_list, pdinfo) pdinfo_list_t;
typedef struct pdinfo
{
STAILQ_ENTRY(pdinfo) pd_link; /* link in device list */
pdinfo_list_t pd_part; /* list of partitions */
EFI_HANDLE pd_handle;
EFI_HANDLE pd_alias;
EFI_DEVICE_PATH *pd_devpath;
EFI_BLOCK_IO *pd_blkio;
uint32_t pd_unit; /* unit number */
uint32_t pd_open; /* reference counter */
void *pd_bcache; /* buffer cache data */
struct pdinfo *pd_parent; /* Linked items (eg partitions) */
struct devsw *pd_devsw; /* Back pointer to devsw */
} pdinfo_t;
pdinfo_list_t *efiblk_get_pdinfo_list(struct devsw *dev);
pdinfo_t *efiblk_get_pdinfo(struct devdesc *dev);
pdinfo_t *efiblk_get_pdinfo_by_handle(EFI_HANDLE h);
pdinfo_t *efiblk_get_pdinfo_by_device_path(EFI_DEVICE_PATH *path);
void *efi_get_table(EFI_GUID *tbl);
int efi_getdev(void **vdev, const char *devspec, const char **path);
char *efi_fmtdev(void *vdev);
int efi_setcurrdev(struct env_var *ev, int flags, const void *value);
int efi_register_handles(struct devsw *, EFI_HANDLE *, EFI_HANDLE *, int);
EFI_HANDLE efi_find_handle(struct devsw *, int);
int efi_handle_lookup(EFI_HANDLE, struct devsw **, int *, uint64_t *);
int efi_handle_update_dev(EFI_HANDLE, struct devsw *, int, uint64_t);
EFI_DEVICE_PATH *efi_lookup_image_devpath(EFI_HANDLE);
EFI_DEVICE_PATH *efi_lookup_devpath(EFI_HANDLE);
EFI_HANDLE efi_devpath_handle(EFI_DEVICE_PATH *);
EFI_DEVICE_PATH *efi_devpath_last_node(EFI_DEVICE_PATH *);
EFI_DEVICE_PATH *efi_devpath_trim(EFI_DEVICE_PATH *);
bool efi_devpath_match(EFI_DEVICE_PATH *, EFI_DEVICE_PATH *);
bool efi_devpath_match_node(EFI_DEVICE_PATH *, EFI_DEVICE_PATH *);
bool efi_devpath_is_prefix(EFI_DEVICE_PATH *, EFI_DEVICE_PATH *);
CHAR16 *efi_devpath_name(EFI_DEVICE_PATH *);
void efi_free_devpath_name(CHAR16 *);
EFI_DEVICE_PATH *efi_devpath_to_media_path(EFI_DEVICE_PATH *);
UINTN efi_devpath_length(EFI_DEVICE_PATH *);
int efi_status_to_errno(EFI_STATUS);
EFI_STATUS errno_to_efi_status(int errno);
void efi_time_init(void);
void efi_time_fini(void);
EFI_STATUS efi_main(EFI_HANDLE Ximage, EFI_SYSTEM_TABLE* Xsystab);
EFI_STATUS main(int argc, CHAR16 *argv[]);
void efi_exit(EFI_STATUS status) __dead2;
void delay(int usecs);
/* EFI environment initialization. */
void efi_init_environment(void);
/* EFI Memory type strings. */
const char *efi_memory_type(EFI_MEMORY_TYPE);
/* CHAR16 utility functions. */
int wcscmp(CHAR16 *, CHAR16 *);
void cpy8to16(const char *, CHAR16 *, size_t);
void cpy16to8(const CHAR16 *, char *, size_t);
/*
* Routines for interacting with EFI's env vars in a more unix-like
* way than the standard APIs. In addition, convenience routines for
* the loader setting / getting FreeBSD specific variables.
*/
EFI_STATUS efi_freebsd_getenv(const char *v, void *data, __size_t *len);
EFI_STATUS efi_getenv(EFI_GUID *g, const char *v, void *data, __size_t *len);
EFI_STATUS efi_global_getenv(const char *v, void *data, __size_t *len);
EFI_STATUS efi_setenv_freebsd_wcs(const char *varname, CHAR16 *valstr);
/* guids and names */
bool efi_guid_to_str(const EFI_GUID *, char **);
bool efi_str_to_guid(const char *, EFI_GUID *);
bool efi_name_to_guid(const char *, EFI_GUID *);
bool efi_guid_to_name(EFI_GUID *, char **);
/* efipart.c */
int efipart_inithandles(void);
#endif /* _LOADER_EFILIB_H */