2 * Copyright (c) 2000 Doug Rabson
3 * Copyright (c) 2006 Marcel Moolenaar
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 #ifndef _LOADER_EFILIB_H
31 #define _LOADER_EFILIB_H
35 #include <sys/queue.h>
38 extern EFI_SYSTEM_TABLE *ST;
39 extern EFI_BOOT_SERVICES *BS;
40 extern EFI_RUNTIME_SERVICES *RS;
42 extern struct devsw efipart_fddev;
43 extern struct devsw efipart_cddev;
44 extern struct devsw efipart_hddev;
45 extern struct devsw efinet_dev;
46 extern struct netif_driver efinetif;
48 /* EFI block device data, included here to help efi_zfs_probe() */
49 typedef STAILQ_HEAD(pdinfo_list, pdinfo) pdinfo_list_t;
53 STAILQ_ENTRY(pdinfo) pd_link; /* link in device list */
54 pdinfo_list_t pd_part; /* list of partitions */
57 EFI_DEVICE_PATH *pd_devpath;
58 EFI_BLOCK_IO *pd_blkio;
59 uint32_t pd_unit; /* unit number */
60 uint32_t pd_open; /* reference counter */
61 void *pd_bcache; /* buffer cache data */
62 struct pdinfo *pd_parent; /* Linked items (eg partitions) */
63 struct devsw *pd_devsw; /* Back pointer to devsw */
66 pdinfo_list_t *efiblk_get_pdinfo_list(struct devsw *dev);
67 pdinfo_t *efiblk_get_pdinfo(struct devdesc *dev);
68 pdinfo_t *efiblk_get_pdinfo_by_handle(EFI_HANDLE h);
69 pdinfo_t *efiblk_get_pdinfo_by_device_path(EFI_DEVICE_PATH *path);
71 void *efi_get_table(EFI_GUID *tbl);
73 int efi_getdev(void **vdev, const char *devspec, const char **path);
74 char *efi_fmtdev(void *vdev);
75 int efi_setcurrdev(struct env_var *ev, int flags, const void *value);
78 int efi_register_handles(struct devsw *, EFI_HANDLE *, EFI_HANDLE *, int);
79 EFI_HANDLE efi_find_handle(struct devsw *, int);
80 int efi_handle_lookup(EFI_HANDLE, struct devsw **, int *, uint64_t *);
81 int efi_handle_update_dev(EFI_HANDLE, struct devsw *, int, uint64_t);
83 EFI_DEVICE_PATH *efi_lookup_image_devpath(EFI_HANDLE);
84 EFI_DEVICE_PATH *efi_lookup_devpath(EFI_HANDLE);
85 EFI_HANDLE efi_devpath_handle(EFI_DEVICE_PATH *);
86 EFI_DEVICE_PATH *efi_devpath_last_node(EFI_DEVICE_PATH *);
87 EFI_DEVICE_PATH *efi_devpath_trim(EFI_DEVICE_PATH *);
88 bool efi_devpath_match(EFI_DEVICE_PATH *, EFI_DEVICE_PATH *);
89 bool efi_devpath_match_node(EFI_DEVICE_PATH *, EFI_DEVICE_PATH *);
90 bool efi_devpath_is_prefix(EFI_DEVICE_PATH *, EFI_DEVICE_PATH *);
91 CHAR16 *efi_devpath_name(EFI_DEVICE_PATH *);
92 void efi_free_devpath_name(CHAR16 *);
93 EFI_DEVICE_PATH *efi_devpath_to_media_path(EFI_DEVICE_PATH *);
94 UINTN efi_devpath_length(EFI_DEVICE_PATH *);
96 int efi_status_to_errno(EFI_STATUS);
97 EFI_STATUS errno_to_efi_status(int errno);
99 void efi_time_init(void);
100 void efi_time_fini(void);
102 EFI_STATUS efi_main(EFI_HANDLE Ximage, EFI_SYSTEM_TABLE* Xsystab);
104 EFI_STATUS main(int argc, CHAR16 *argv[]);
105 void efi_exit(EFI_STATUS status) __dead2;
106 void delay(int usecs);
108 /* EFI environment initialization. */
109 void efi_init_environment(void);
111 /* EFI Memory type strings. */
112 const char *efi_memory_type(EFI_MEMORY_TYPE);
114 /* CHAR16 utility functions. */
115 int wcscmp(CHAR16 *, CHAR16 *);
116 void cpy8to16(const char *, CHAR16 *, size_t);
117 void cpy16to8(const CHAR16 *, char *, size_t);
120 * Routines for interacting with EFI's env vars in a more unix-like
121 * way than the standard APIs. In addition, convenience routines for
122 * the loader setting / getting FreeBSD specific variables.
125 EFI_STATUS efi_freebsd_getenv(const char *v, void *data, __size_t *len);
126 EFI_STATUS efi_getenv(EFI_GUID *g, const char *v, void *data, __size_t *len);
127 EFI_STATUS efi_global_getenv(const char *v, void *data, __size_t *len);
128 EFI_STATUS efi_setenv_freebsd_wcs(const char *varname, CHAR16 *valstr);
130 /* guids and names */
131 bool efi_guid_to_str(const EFI_GUID *, char **);
132 bool efi_str_to_guid(const char *, EFI_GUID *);
133 bool efi_name_to_guid(const char *, EFI_GUID *);
134 bool efi_guid_to_name(EFI_GUID *, char **);
137 int efipart_inithandles(void);
139 #endif /* _LOADER_EFILIB_H */