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https://codeberg.org/ziglang/zig.git
synced 2026-04-30 06:42:48 +03:00
Alex Rønne Petersen
66d97267c7
This excludes all headers in /usr/include/dev because that directory is bonkers huge (18M). We can add these on an as-needed basis.
306 lines
8.5 KiB
C
Vendored
306 lines
8.5 KiB
C
Vendored
/* $OpenBSD: biosvar.h,v 1.68 2019/08/04 14:28:58 kettenis Exp $ */
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/*
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* Copyright (c) 1997-1999 Michael Shalayeff
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR OR HIS RELATIVES BE LIABLE FOR ANY DIRECT,
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* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF MIND, USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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* THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _MACHINE_BIOSVAR_H_
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#define _MACHINE_BIOSVAR_H_
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/* some boxes put apm data seg in the 2nd page */
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#define BOOTARG_OFF (PAGE_SIZE * 2)
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#define BOOTARG_LEN (PAGE_SIZE * 1)
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#define BOOTBIOS_ADDR (0x7c00)
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#define BOOTBIOS_MAXSEC ((1 << 28) - 1)
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/* BIOS configure flags */
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#define BIOSF_BIOS32 0x0001
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#define BIOSF_PCIBIOS 0x0002
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#define BIOSF_PROMSCAN 0x0004
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#define BIOSF_SMBIOS 0x0008
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/* BIOS media ID */
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#define BIOSM_F320K 0xff /* floppy ds/sd 8 spt */
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#define BIOSM_F160K 0xfe /* floppy ss/sd 8 spt */
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#define BIOSM_F360K 0xfd /* floppy ds/sd 9 spt */
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#define BIOSM_F180K 0xfc /* floppy ss/sd 9 spt */
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#define BIOSM_ROMD 0xfa /* ROM disk */
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#define BIOSM_F120M 0xf9 /* floppy ds/hd 15 spt 5.25" */
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#define BIOSM_F720K 0xf9 /* floppy ds/dd 9 spt 3.50" */
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#define BIOSM_HD 0xf8 /* hard drive */
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#define BIOSM_F144K 0xf0 /* floppy ds/hd 18 spt 3.50" */
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#define BIOSM_OTHER 0xf0 /* any other */
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/*
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* BIOS memory maps
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*/
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#define BIOS_MAP_END 0x00 /* End of array XXX - special */
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#define BIOS_MAP_FREE 0x01 /* Usable memory */
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#define BIOS_MAP_RES 0x02 /* Reserved memory */
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#define BIOS_MAP_ACPI 0x03 /* ACPI Reclaim memory */
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#define BIOS_MAP_NVS 0x04 /* ACPI NVS memory */
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/*
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* Optional ROM header
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*/
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typedef
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struct bios_romheader {
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uint16_t signature; /* 0xaa55 */
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uint8_t len; /* length in pages (512 bytes) */
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uint32_t entry; /* initialization entry point */
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uint8_t reserved[19];
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uint16_t pnpheader; /* offset to PnP expansion header */
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} __packed *bios_romheader_t;
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/*
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* BIOS32
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*/
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typedef
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struct bios32_header {
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uint32_t signature; /* 00: signature "_32_" */
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uint32_t entry; /* 04: entry point */
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uint8_t rev; /* 08: revision */
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uint8_t length; /* 09: header length */
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uint8_t cksum; /* 0a: modulo 256 checksum */
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uint8_t reserved[5];
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} __packed *bios32_header_t;
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typedef
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struct bios32_entry_info {
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uint32_t bei_base;
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uint32_t bei_size;
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uint32_t bei_entry;
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} __packed *bios32_entry_info_t;
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typedef
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struct bios32_entry {
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uint32_t offset;
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uint16_t segment;
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} __packed *bios32_entry_t;
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#define BIOS32_START 0xe0000
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#define BIOS32_SIZE 0x20000
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#define BIOS32_END (BIOS32_START + BIOS32_SIZE - 0x10)
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#define BIOS32_MAKESIG(a, b, c, d) \
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((a) | ((b) << 8) | ((c) << 16) | ((d) << 24))
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#define BIOS32_SIGNATURE BIOS32_MAKESIG('_', '3', '2', '_')
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#define PCIBIOS_SIGNATURE BIOS32_MAKESIG('$', 'P', 'C', 'I')
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#define SMBIOS_SIGNATURE BIOS32_MAKESIG('_', 'S', 'M', '_')
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/*
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* CTL_BIOS definitions.
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*/
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#define BIOS_DEV 1 /* int: BIOS boot device */
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#define BIOS_DISKINFO 2 /* struct: BIOS boot device info */
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#define BIOS_CKSUMLEN 3 /* int: disk cksum block count */
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#define BIOS_MAXID 4 /* number of valid machdep ids */
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#define CTL_BIOS_NAMES { \
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{ 0, 0 }, \
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{ "biosdev", CTLTYPE_INT }, \
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{ "diskinfo", CTLTYPE_STRUCT }, \
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{ "cksumlen", CTLTYPE_INT }, \
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}
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#define BOOTARG_MEMMAP 0
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typedef struct _bios_memmap {
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uint64_t addr; /* Beginning of block */
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uint64_t size; /* Size of block */
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uint32_t type; /* Type of block */
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} __packed bios_memmap_t;
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/* Info about disk from the bios, plus the mapping from
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* BIOS numbers to BSD major (driver?) number.
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*
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* Also, do not bother with BIOSN*() macros, just parcel
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* the info out, and use it like this. This makes for less
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* of a dependence on BIOSN*() macros having to be the same
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* across /boot, /bsd, and userland.
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*/
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#define BOOTARG_DISKINFO 1
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typedef struct _bios_diskinfo {
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/* BIOS section */
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int bios_number; /* BIOS number of drive (or -1) */
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u_int bios_cylinders; /* BIOS cylinders */
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u_int bios_heads; /* BIOS heads */
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u_int bios_sectors; /* BIOS sectors */
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int bios_edd; /* EDD support */
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/* BSD section */
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dev_t bsd_dev; /* BSD device */
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/* Checksum section */
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uint32_t checksum; /* Checksum for drive */
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/* Misc. flags */
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uint32_t flags;
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#define BDI_INVALID 0x00000001 /* I/O error during checksumming */
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#define BDI_GOODLABEL 0x00000002 /* Had SCSI or ST506/ESDI disklabel */
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#define BDI_BADLABEL 0x00000004 /* Had another disklabel */
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#define BDI_EL_TORITO 0x00000008 /* 2,048-byte sectors */
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#define BDI_HIBVALID 0x00000010 /* hibernate signature valid */
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#define BDI_PICKED 0x80000000 /* kernel-only: cksum matched */
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} __packed bios_diskinfo_t;
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#define BOOTARG_APMINFO 2
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typedef struct _bios_apminfo {
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/* APM_CONNECT returned values */
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u_int apm_detail;
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u_int apm_code32_base;
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u_int apm_code16_base;
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u_int apm_code_len;
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u_int apm_data_base;
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u_int apm_data_len;
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u_int apm_entry;
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u_int apm_code16_len;
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} __packed bios_apminfo_t;
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#define BOOTARG_CKSUMLEN 3 /* uint32_t */
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#define BOOTARG_PCIINFO 4
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typedef struct _bios_pciinfo {
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/* PCI BIOS v2.0+ - Installation check values */
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uint32_t pci_chars; /* Characteristics (%eax) */
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uint32_t pci_rev; /* BCD Revision (%ebx) */
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uint32_t pci_entry32; /* PM entry point for PCI BIOS */
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uint32_t pci_lastbus; /* Number of last PCI bus */
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} __packed bios_pciinfo_t;
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#define BOOTARG_CONSDEV 5
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typedef struct _bios_consdev {
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dev_t consdev;
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int conspeed;
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int consaddr;
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int consfreq;
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} __packed bios_consdev_t;
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#define BOOTARG_SMPINFO 6 /* struct mp_float[] */
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#define BOOTARG_BOOTMAC 7
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typedef struct _bios_bootmac {
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char mac[6];
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} __packed bios_bootmac_t;
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#define BOOTARG_DDB 8
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typedef struct _bios_ddb {
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int db_console;
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} __packed bios_ddb_t;
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#define BOOTARG_BOOTDUID 9
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typedef struct _bios_bootduid {
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u_char duid[8];
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} __packed bios_bootduid_t;
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#define BOOTARG_BOOTSR 10
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#define BOOTSR_UUID_MAX 16
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#define BOOTSR_CRYPTO_MAXKEYBYTES 32
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typedef struct _bios_bootsr {
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uint8_t uuid[BOOTSR_UUID_MAX];
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uint8_t maskkey[BOOTSR_CRYPTO_MAXKEYBYTES];
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} __packed bios_bootsr_t;
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#define BOOTARG_EFIINFO 11
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typedef struct _bios_efiinfo {
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uint64_t config_acpi;
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uint64_t config_smbios;
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uint64_t fb_addr;
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uint64_t fb_size;
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uint32_t fb_height;
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uint32_t fb_width;
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uint32_t fb_pixpsl; /* pixels per scan line */
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uint32_t fb_red_mask;
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uint32_t fb_green_mask;
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uint32_t fb_blue_mask;
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uint32_t fb_reserved_mask;
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} __packed bios_efiinfo_t;
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#define BOOTARG_UCODE 12
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typedef struct _bios_ucode {
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uint64_t uc_addr;
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uint64_t uc_size;
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} __packed bios_ucode_t;
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#if defined(_KERNEL) || defined (_STANDALONE)
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#ifdef _LOCORE
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#define DOINT(n) int $0x20+(n)
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#else
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#define DOINT(n) "int $0x20+(" #n ")"
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extern volatile struct BIOS_regs {
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uint32_t biosr_ax;
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uint32_t biosr_cx;
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uint32_t biosr_dx;
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uint32_t biosr_bx;
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uint32_t biosr_bp;
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uint32_t biosr_si;
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uint32_t biosr_di;
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uint32_t biosr_ds;
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uint32_t biosr_es;
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} __packed BIOS_regs;
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#ifdef _KERNEL
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#include <machine/bus.h>
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struct bios_attach_args {
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char *ba_name;
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u_int ba_func;
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bus_space_tag_t ba_iot;
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bus_space_tag_t ba_memt;
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union {
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void *_p;
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bios_apminfo_t *_ba_apmp;
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paddr_t _ba_acpipbase;
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} _;
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};
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#define ba_apmp _._ba_apmp
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#define ba_acpipbase _._ba_acpipbase
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struct consdev;
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struct proc;
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int bios_sysctl(int *, u_int, void *, size_t *, void *, size_t, struct proc *);
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void bios_getopt(void);
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/* bios32.c */
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int bios32_service(uint32_t, bios32_entry_t, bios32_entry_info_t);
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void bios32_cleanup(void);
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extern u_int bootapiver;
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extern bios_memmap_t *bios_memmap;
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extern bios_efiinfo_t *bios_efiinfo;
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extern bios_ucode_t *bios_ucode;
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extern void *bios_smpinfo;
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extern bios_pciinfo_t *bios_pciinfo;
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#endif /* _KERNEL */
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#endif /* _LOCORE */
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#endif /* _KERNEL || _STANDALONE */
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#endif /* _MACHINE_BIOSVAR_H_ */ |