diff options
Diffstat (limited to 'sys/alpha')
| -rw-r--r-- | sys/alpha/include/pc/bios.h | 113 |
1 files changed, 113 insertions, 0 deletions
diff --git a/sys/alpha/include/pc/bios.h b/sys/alpha/include/pc/bios.h new file mode 100644 index 000000000000..96c7db651b50 --- /dev/null +++ b/sys/alpha/include/pc/bios.h @@ -0,0 +1,113 @@ +/*- + * Copyright (c) 1997 Michael Smith + * 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. + * + * $Id$ + */ + +/* + * Signature structure for the BIOS32 Service Directory header + */ +struct bios32_SDheader +{ + u_int8_t sig[4]; + u_int32_t entry; + u_int8_t revision; + u_int8_t len; + u_int8_t cksum; + u_int8_t pad[5]; +}; + +/* + * BIOS32 Service Directory entry. Caller supplies name, bios32_SDlookup + * fills in the rest of the details. + */ +struct bios32_SDentry +{ + union + { + u_int8_t name[4]; /* service identifier */ + u_int32_t id; /* as a 32-bit value */ + } ident; + u_int32_t base; /* base of service */ + u_int32_t len; /* service length */ + u_int32_t entry; /* entrypoint offset from base */ +}; + +extern int bios32_SDlookup(struct bios32_SDentry *ent); +extern u_int32_t bios_sigsearch(u_int32_t start, u_char *sig, int siglen, + int paralen, int sigofs); + +/* + * Call a 32-bit BIOS function + */ +struct bios32_args { + u_long eax; + u_long ebx; + u_long ecx; + u_long edx; +}; +extern void bios32(caddr_t func_addr, struct bios32_args *args); + +#define BIOS_PADDRTOVADDR(x) (((x) - ISA_HOLE_START) + atdevbase) +#define BIOS_VADDRTOPADDR(x) (((x) - atdevbase) + ISA_HOLE_START) + + +/* + * System Management BIOS / Desktop Management Interface tables + */ + +struct DMI_table +{ + u_int8_t sig[5]; /* "_DMI_" */ + u_int8_t cksum; /* checksum */ + u_int16_t st_size; /* total length of SMBIOS table (bytes)*/ + u_int32_t st_base; /* base address of the SMBIOS table (physical) */ + u_int16_t st_entries; /* total number of structures present in the table */ + u_int8_t bcd_revision; /* interface revision number */ + u_int8_t pad[2]; +}; + +struct SMBIOS_table +{ + u_int8_t sig[4]; /* "_SM_" */ + u_int8_t cksum; /* checksum */ + u_int8_t len; /* structure length */ + u_int8_t major, minor; /* major/minor revision numbers */ + u_int16_t st_maxsize; /* largest structure size (bytes) */ + u_int8_t revision; /* entrypoint revision */ + u_int8_t pad[5]; + struct DMI_table dmi; /* follows immediately */ +}; + + +/* + * Exported lookup results + */ +extern struct bios32_SDentry PCIbios; +extern struct SMBIOS_table *SMBIOS_table; +extern struct DMI_table *DMI_table; + + + |