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      1 /*	$NetBSD: libi386.h,v 1.56 2025/10/09 16:10:03 manu Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 1996
      5  *	Matthias Drochner.  All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  *
     16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     17  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     18  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     19  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     20  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     21  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     22  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     23  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     24  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     25  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     26  *
     27  */
     28 
     29 #ifndef	__I386_STAND_LIBI386_H__
     30 #define	__I386_STAND_LIBI386_H__
     31 
     32 typedef unsigned long physaddr_t;
     33 
     34 /* this is in startup code */
     35 void vpbcopy(const void *, void *, size_t);
     36 void pvbcopy(const void *, void *, size_t);
     37 void pbzero(void *, size_t);
     38 physaddr_t vtophys(void *);
     39 
     40 ssize_t pread(int, void *, size_t);
     41 void startprog(physaddr_t, uint32_t, uint32_t *, physaddr_t);
     42 void multiboot(physaddr_t, physaddr_t, physaddr_t, uint32_t);
     43 
     44 int exec_netbsd(const char *, physaddr_t, int, int, void (*)(void));
     45 int exec_multiboot(const char *, char *);
     46 
     47 void delay(int);
     48 int getbasemem(void);
     49 int getextmemx(void);
     50 int getextmem1(void);
     51 int biosvideomode(void);
     52 #ifdef CONSERVATIVE_MEMDETECT
     53 #define getextmem() getextmem1()
     54 #else
     55 #define getextmem() getextmemx()
     56 #endif
     57 void reboot(void);
     58 void gateA20(void);
     59 
     60 void clear_pc_screen(void);
     61 void initio(int);
     62 #define CONSDEV_PC 0
     63 #define CONSDEV_COM0 1
     64 #define CONSDEV_COM1 2
     65 #define CONSDEV_COM2 3
     66 #define CONSDEV_COM3 4
     67 #define CONSDEV_COM0KBD 5
     68 #define CONSDEV_COM1KBD 6
     69 #define CONSDEV_COM2KBD 7
     70 #define CONSDEV_COM3KBD 8
     71 #define CONSDEV_COM 9
     72 #define CONSDEV_UCOM 10
     73 #define CONSDEV_AUTO (-1)
     74 int iskey(int);
     75 char awaitkey(int, int);
     76 void wait_sec(int);
     77 
     78 /* multiboot */
     79 struct multiboot_package;
     80 struct multiboot_package_priv;
     81 
     82 struct multiboot_package {
     83 	int			 mbp_version;
     84 	struct multiboot_header	*mbp_header;
     85 	const char		*mbp_file;
     86 	char			*mbp_args;
     87 	u_long			 mbp_basemem;
     88 	u_long			 mbp_extmem;
     89 	u_long			 mbp_loadaddr;
     90 	u_long			*mbp_marks;
     91 	struct multiboot_package_priv*mbp_priv;
     92 	struct multiboot_package*(*mbp_probe)(const char *);
     93 	int			(*mbp_exec)(struct multiboot_package *);
     94 	void			(*mbp_cleanup)(struct multiboot_package *);
     95 };
     96 
     97 struct multiboot_package *probe_multiboot1(const char *);
     98 struct multiboot_package *probe_multiboot2(const char *);
     99 
    100 /* this is in "user code"! */
    101 int parsebootfile(const char *, char **, char **, int *, int *, const char **);
    102 
    103 /* parseutils.c */
    104 char *gettrailer(char *);
    105 int parseopts(const char *, int *);
    106 int parseboot(char *, char **, int *);
    107 
    108 /* menuutils.c */
    109 struct bootblk_command {
    110 	const char *c_name;
    111 	void (*c_fn)(char *);
    112 };
    113 void bootmenu(void);
    114 void docommand(char *);
    115 
    116 /* in "user code": */
    117 void command_help(char *);
    118 extern const struct bootblk_command commands[];
    119 
    120 /* asm bios/dos calls */
    121 __compactcall int biosdisk_extread(int, void *);
    122 int biosdisk_read(int, int, int, int, int, void *);
    123 __compactcall int biosdisk_reset(int);
    124 
    125 __compactcall int biosgetrtc(u_long *);
    126 int biosgetsystime(void);
    127 int comgetc(int);
    128 void cominit(int);
    129 __compactcall int computc(int, int);
    130 int comstatus(int);
    131 int congetc(void);
    132 int conisshift(void);
    133 int coniskey(void);
    134 __compactcall void conputc(int);
    135 void conclr(void);
    136 
    137 int getextmem2(int *);
    138 __compactcall int getextmemps2(void *);
    139 int getmementry(int *, int *);
    140 
    141 __compactcall int biosdisk_int13ext(int);
    142 __compactcall int biosdisk_getinfo(int);
    143 struct biosdisk_extinfo;
    144 __compactcall int biosdisk_getextinfo(int, struct biosdisk_extinfo *);
    145 int get_harddrives(void);
    146 void biosdisk_probe(void);
    147 
    148 void module_add(char *);
    149 void splash_add(char *);
    150 void rnd_add(char *);
    151 void fs_add(char *);
    152 void userconf_add(char *);
    153 void module_add_split(const char *, uint8_t);
    154 
    155 /* Note: implementations differ in boot2, dosboot & efiboot */
    156 void command_dev(char *);
    157 
    158 struct btinfo_framebuffer;
    159 void framebuffer_configure(struct btinfo_framebuffer *);
    160 
    161 void ksyms_addr_set(void *, void *, void *);
    162 
    163 #endif	/* __I386_STAND_LIBI386_H__ */
    164