diff options
Diffstat (limited to 'sys/i386/boot/serialboot')
| -rw-r--r-- | sys/i386/boot/serialboot/Makefile | 59 | ||||
| -rw-r--r-- | sys/i386/boot/serialboot/bios.S | 366 | ||||
| -rw-r--r-- | sys/i386/boot/serialboot/boot.c | 284 |
3 files changed, 0 insertions, 709 deletions
diff --git a/sys/i386/boot/serialboot/Makefile b/sys/i386/boot/serialboot/Makefile deleted file mode 100644 index a28284318870..000000000000 --- a/sys/i386/boot/serialboot/Makefile +++ /dev/null @@ -1,59 +0,0 @@ -# $Id: Makefile,v 1.22 1994/11/05 21:06:16 ache Exp $ -# - -PROG= boot - -.PATH: ${.CURDIR}/../biosboot -# Order is very important on the SRCS line for this prog -SRCS= start.S table.c boot2.S boot.c asm.S bios.S io.c disk.c sys.c - -BINDIR= /usr/mdec -BINMODE= 444 -CFLAGS= -O -DDO_BAD144 -DBOOTWAIT=${BOOTWAIT} -DCOMCONSOLE=0x3F8 -CFLAGS+= -DBOOTSEG=${BOOTSEG} -DBOOTSTACK=${BOOTSTACK} -CFLAGS+= -I${.CURDIR} -I${.CURDIR}/../biosboot -I${.CURDIR}/../.. -CLEANFILES+= boot.nohdr boot.strip boot1 boot2 -DPADD= ${LIBC} -LDFLAGS+= -N -T 0 -nostdlib -LDADD= -lc -LINKS= ${BINDIR}/sdboot ${BINDIR}/wdboot\ - ${BINDIR}/sdboot ${BINDIR}/fdboot\ - ${BINDIR}/bootsd ${BINDIR}/bootwd\ - ${BINDIR}/bootsd ${BINDIR}/bootfd -NOSHARED= YES -NOMAN= -STRIP= - -# tunable timeout parameter, waiting for keypress, calibrated in mS -BOOTWAIT?= 5000 - -# Location that boot2 is loaded at -BOOTSEG= 0x1000 - -# Offset in BOOTSEG for the top of the stack, keep this 16 byte aligned -BOOTSTACK= 0xFFF0 - -boot.strip: boot - cp -p boot boot.strip - strip boot.strip - size boot.strip - -boot.nohdr: boot.strip - dd if=boot.strip of=boot.nohdr ibs=32 skip=1 obs=1024b - ls -l boot.nohdr - -boot1: boot.nohdr - dd if=boot.nohdr of=boot1 bs=512 count=1 - -boot2: boot.nohdr - dd if=boot.nohdr of=boot2 bs=512 skip=1 - -all: boot1 boot2 - -beforeinstall: - install ${COPY} -o ${BINOWN} -g ${BINGRP} -m ${BINMODE}\ - boot1 ${DESTDIR}${BINDIR}/sdboot - install ${COPY} -o ${BINOWN} -g ${BINGRP} -m ${BINMODE}\ - boot2 ${DESTDIR}${BINDIR}/bootsd - -.include <bsd.prog.mk> diff --git a/sys/i386/boot/serialboot/bios.S b/sys/i386/boot/serialboot/bios.S deleted file mode 100644 index c2924528e30b..000000000000 --- a/sys/i386/boot/serialboot/bios.S +++ /dev/null @@ -1,366 +0,0 @@ -/* - * Mach Operating System - * Copyright (c) 1992, 1991 Carnegie Mellon University - * All Rights Reserved. - * - * Permission to use, copy, modify and distribute this software and its - * documentation is hereby granted, provided that both the copyright - * notice and this permission notice appear in all copies of the - * software, derivative works or modified versions, and any portions - * thereof, and that both notices appear in supporting documentation. - * - * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" - * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR - * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. - * - * Carnegie Mellon requests users of this software to return to - * - * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU - * School of Computer Science - * Carnegie Mellon University - * Pittsburgh PA 15213-3890 - * - * any improvements or extensions that they make and grant Carnegie Mellon - * the rights to redistribute these changes. - * - * from: Mach, Revision 2.2 92/04/04 11:34:26 rpd - * $Id: bios.S,v 1.3 1994/10/02 05:18:25 rgrimes Exp $ - */ - -/* - Copyright 1988, 1989, 1990, 1991, 1992 - by Intel Corporation, Santa Clara, California. - - All Rights Reserved - -Permission to use, copy, modify, and distribute this software and -its documentation for any purpose and without fee is hereby -granted, provided that the above copyright notice appears in all -copies and that both the copyright notice and this permission notice -appear in supporting documentation, and that the name of Intel -not be used in advertising or publicity pertaining to distribution -of the software without specific, written prior permission. - -INTEL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE -INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, -IN NO EVENT SHALL INTEL BE LIABLE FOR ANY SPECIAL, INDIRECT, OR -CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM -LOSS OF USE, DATA OR PROFITS, WHETHER IN ACTION OF CONTRACT, -NEGLIGENCE, OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION -WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. -*/ - -/* - * Serial bootblock interface routines - * Copyright (c) 1994, J"org Wunsch - * - * Permission to use, copy, modify and distribute this software and its - * documentation is hereby granted, provided that both the copyright - * notice and this permission notice appear in all copies of the - * software, derivative works or modified versions, and any portions - * thereof, and that both notices appear in supporting documentation. - * - * THE AUTHOR ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" - * CONDITION. THE AUTHOR DISCLAIMS ANY LIABILITY OF ANY KIND FOR - * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. - */ - - .file "bios.s" - -#include "asm.h" - .text - -/* - * biosread(dev, cyl, head, sec, nsec, offset) - * Read "nsec" sectors from disk to offset "offset" in boot segment - * BIOS call "INT 0x13 Function 0x2" to read sectors from disk into memory - * Call with %ah = 0x2 - * %al = number of sectors - * %ch = cylinder - * %cl = sector - * %dh = head - * %dl = drive (0x80 for hard disk, 0x0 for floppy disk) - * %es:%bx = segment:offset of buffer - * Return: - * %al = 0x0 on success; err code on failure - */ - -ENTRY(biosread) - push %ebp - mov %esp, %ebp - - push %ebx - push %ecx - push %edx - push %es - - movb 0x10(%ebp), %dh - movw 0x0c(%ebp), %cx - /* cylinder; the highest 2 bits of cyl is in %cl */ - xchgb %ch, %cl - rorb $2, %cl - movb 0x14(%ebp), %al - orb %al, %cl - incb %cl /* sector; sec starts from 1, not 0 */ - movb 0x8(%ebp), %dl /* device */ - movl 0x1c(%ebp), %ebx /* offset */ - - /* prot_to_real will set %es to BOOTSEG */ - call EXT(prot_to_real) /* enter real mode */ - movb $0x2, %ah /* subfunction */ - addr32 - movb 0x18(%ebp), %al /* number of sectors */ - - sti - int $0x13 - cli - - /* save return value (actually movw %ax, %bx) */ - mov %eax, %ebx - - data32 - call EXT(real_to_prot) /* back to protected mode */ - - xor %eax, %eax - movb %bh, %al /* return value in %ax */ - - pop %es - pop %edx - pop %ecx - pop %ebx - pop %ebp - - ret - -/* - * The serial port interface routines implement a simple polled i/o - * interface to a standard serial port. Due to the space restrictions - * for the boot blocks, no BIOS support is used (since BIOS requires - * expensive real/protected mode switches), instead the rudimentary - * BIOS support is duplicated here. - * - * The base address for the i/o port is passed from the Makefile in - * the COMCONSOLE preprocessor macro. Console parameters are currently - * hard-coded to 9600 Bd, 8 bit. This can be changed in the - * init_serial() function. - */ - -/* - * void putc(char ch) - * send ch to serial port - * - */ - -ENTRY(putc) - push %ebp - mov %esp, %ebp - push %edx - - mov $COMCONSOLE + 5, %edx # line status reg -1: inb %dx, %al - test $0x20, %al - jz 1b # TX buffer not empty - - movb 0x8(%ebp), %al - - sub $5, %edx # TX output reg - outb %al, %dx # send this one - - pop %edx - pop %ebp - ret - -/* - * int getc(void) - * read a character from serial port - */ - -ENTRY(getc) - push %ebp - mov %esp, %ebp - push %edx - - mov $COMCONSOLE + 5, %edx # line status reg -1: - inb %dx, %al - testb $0x01, %al - jz 1b # no RX char available - - xor %eax, %eax - sub $5, %edx # RX buffer reg - inb %dx, %al # fetch (first) character - - cmp $0x7F, %eax # make DEL... - jne 2f - mov $0x08, %eax # look like BS -2: - pop %edx - pop %ebp - ret - -/* - * int ischar(void) - * if there is a character pending, return true; otherwise return 0 - */ -ENTRY(ischar) - push %ebp - mov %esp, %ebp - push %edx - - xorl %eax, %eax - mov $COMCONSOLE + 5, %edx # line status reg - inb %dx, %al - andb $0x01, %al # RX char available? - - pop %edx - pop %ebp - ret - -/* - * void init_serial(void) - * initialize the serial console port to 9600 Bd, 8 bpc - */ -ENTRY(init_serial) - push %ebp - mov %esp, %ebp - push %edx - - mov $COMCONSOLE + 3, %edx # line control reg - movb $0x80, %al - outb %al, %dx # enable DLAB - - sub $3, %edx # divisor latch, low byte - mov $12, %ax # divisor 12: 9600 Bd - outb %al, %dx - inc %edx # divisor latch, high byte - movb %ah, %al - outb %al, %dx - - add $2, %edx # line control reg - movb $0x13, %al - outb %al, %dx # 8 bit, no parity, 1 stop bit - - inc %edx # modem control reg - mov $3, %al - outb %al, %dx # enable DTR/RTS - - /* now finally, flush the input buffer */ - inc %edx # line status reg -1: - inb %dx, %al - testb $0x01, %al - jz 2f # no more characters buffered - sub $5, %edx # rx buffer reg - inb %dx, %al # throw away - add $5, %edx - jmp 1b -2: - pop %edx - pop %ebp - ret - -/* - * - * get_diskinfo(): return a word that represents the - * max number of sectors and heads and drives for this device - * - */ - -ENTRY(get_diskinfo) - push %ebp - mov %esp, %ebp - push %es - push %ebx - push %ecx - push %edx - - movb 0x8(%ebp), %dl /* diskinfo(drive #) */ - call EXT(prot_to_real) /* enter real mode */ - - movb $0x8, %ah /* ask for disk info */ - - sti - int $0x13 - cli - - jnc ok - /* - * Urk. Call failed. It is not supported for floppies by old BIOS's. - * Guess it's a 15-sector floppy. Initialize all the registers for - * documentation, although we only need head and sector counts. - */ - subb %ah, %ah /* %ax = 0 */ - movb %al, %al - movb %ah, %bh /* %bh = 0 */ - movb $2, %bl /* %bl bits 0-3 = drive type, - bit 2 = 1.2M */ - movb $79, %ch /* max track */ - movb $15, %cl /* max sector */ - movb $1, %dh /* max head */ - movb $1, %dl /* # floppy drives installed */ - /* es:di = parameter table */ - /* carry = 0 */ -ok: - - data32 - call EXT(real_to_prot) /* back to protected mode */ - - xor %eax, %eax - - /* form a longword representing all this gunk */ - movb %dh, %ah /* max head */ - andb $0x3f, %cl /* mask of cylinder gunk */ - movb %cl, %al /* max sector (and # sectors) */ - - pop %edx - pop %ecx - pop %ebx - pop %es - pop %ebp - ret - -/* - * - * memsize(i) : return the memory size in KB. i == 0 for conventional memory, - * i == 1 for extended memory - * BIOS call "INT 12H" to get conventional memory size - * BIOS call "INT 15H, AH=88H" to get extended memory size - * Both have the return value in AX. - * - */ - -ENTRY(memsize) - push %ebp - mov %esp, %ebp - push %ebx - - mov 8(%ebp), %ebx - - call EXT(prot_to_real) /* enter real mode */ - - cmpb $0x1, %bl - data32 - je xext - - sti - int $0x12 - cli - data32 - jmp xdone - -xext: movb $0x88, %ah - sti - int $0x15 - cli - -xdone: - mov %eax, %ebx - - data32 - call EXT(real_to_prot) - - mov %ebx, %eax - pop %ebx - pop %ebp - ret - diff --git a/sys/i386/boot/serialboot/boot.c b/sys/i386/boot/serialboot/boot.c deleted file mode 100644 index 06bd6ba38144..000000000000 --- a/sys/i386/boot/serialboot/boot.c +++ /dev/null @@ -1,284 +0,0 @@ -/* - * Mach Operating System - * Copyright (c) 1992, 1991 Carnegie Mellon University - * All Rights Reserved. - * - * Permission to use, copy, modify and distribute this software and its - * documentation is hereby granted, provided that both the copyright - * notice and this permission notice appear in all copies of the - * software, derivative works or modified versions, and any portions - * thereof, and that both notices appear in supporting documentation. - * - * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" - * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR - * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. - * - * Carnegie Mellon requests users of this software to return to - * - * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU - * School of Computer Science - * Carnegie Mellon University - * Pittsburgh PA 15213-3890 - * - * any improvements or extensions that they make and grant Carnegie Mellon - * the rights to redistribute these changes. - * - * from: Mach, [92/04/03 16:51:14 rvb] - * $Id: boot.c,v 1.22 1994/11/07 11:26:26 davidg Exp $ - */ - - -/* - Copyright 1988, 1989, 1990, 1991, 1992 - by Intel Corporation, Santa Clara, California. - - All Rights Reserved - -Permission to use, copy, modify, and distribute this software and -its documentation for any purpose and without fee is hereby -granted, provided that the above copyright notice appears in all -copies and that both the copyright notice and this permission notice -appear in supporting documentation, and that the name of Intel -not be used in advertising or publicity pertaining to distribution -of the software without specific, written prior permission. - -INTEL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE -INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, -IN NO EVENT SHALL INTEL BE LIABLE FOR ANY SPECIAL, INDIRECT, OR -CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM -LOSS OF USE, DATA OR PROFITS, WHETHER IN ACTION OF CONTRACT, -NEGLIGENCE, OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION -WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. -*/ - -#include <sys/param.h> -#include "boot.h" -#include <a.out.h> -#include <sys/reboot.h> -#include <machine/bootinfo.h> - -struct exec head; -struct bootinfo_t bootinfo; -char *name; -char *names[] = { - "/kernel" -}; -#define NUMNAMES (sizeof(names)/sizeof(char *)) - -extern void init_serial(void); -extern int end; -boot(drive) -int drive; -{ - int loadflags, currname = 0, ret; - char *t; - - init_serial(); - - printf("\n>> FreeBSD BOOT @ 0x%x: %d/%d k of memory\n", - ouraddr, - memsize(0), - memsize(1)); - printf("Use hd(1,a)/kernel to boot sd0 when wd0 is also installed.\n"); - printf("Usage: [[[%s(0,a)]%s][-s][-r][-a][-c][-d][-b]]\nUse ? for file list.\n\n" - , devs[(drive & 0x80) ? 0 : 2] - , names[0]); - gateA20(); -loadstart: - /***************************************************************\ - * As a default set it to the first partition of the first * - * floppy or hard drive * - \***************************************************************/ - part = unit = 0; - maj = (drive&0x80 ? 0 : 2); /* a good first bet */ - name = names[currname++]; - - loadflags = 0; - if (currname == NUMNAMES) - currname = 0; - printf("Boot: "); - getbootdev(&loadflags); - ret = openrd(); - if (ret != 0) { - if (ret > 0) - printf("Can't find %s\n", name); - goto loadstart; - } -/* if (inode.i_mode&IEXEC) - loadflags |= RB_KDB; -*/ - loadprog(loadflags); - goto loadstart; -} - -loadprog(howto) - int howto; -{ - long int startaddr; - long int addr; /* physical address.. not directly useable */ - long int bootdev; - long int total; - int i; - unsigned char tmpbuf[4096]; /* we need to load the first 4k here */ - - read(&head, sizeof(head)); - if ( N_BADMAG(head)) { - printf("Invalid format!\n"); - return; - } - - poff = N_TXTOFF(head); - /*if(poff==0) - poff = 32;*/ - - startaddr = (int)head.a_entry & 0x00FFFFFF; /* some MEG boundary */ - addr = startaddr; - printf("Booting %s(%d,%c)%s @ 0x%x\n" - , devs[maj] - , unit - , 'a'+part - , name - , addr); - if(addr < ouraddr) - { - if((addr + head.a_text + head.a_data) > ouraddr) - { - printf("kernel overlaps loader\n"); - return; - } - if((addr + head.a_text + head.a_data + head.a_bss) > 0xa0000) - { - printf("bss exceeds 640k limit\n"); - return; - } - } - printf("text=0x%x ", head.a_text); - /********************************************************/ - /* LOAD THE TEXT SEGMENT */ - /* don't clobber the first 4k yet (BIOS NEEDS IT) */ - /********************************************************/ - read(tmpbuf,4096); - addr += 4096; - xread(addr, head.a_text - 4096); - addr += head.a_text - 4096; - - /********************************************************/ - /* Load the Initialised data after the text */ - /********************************************************/ - while (addr & CLOFSET) - *(char *)addr++ = 0; - - printf("data=0x%x ", head.a_data); - xread(addr, head.a_data); - addr += head.a_data; - - /********************************************************/ - /* Skip over the uninitialised data */ - /* (but clear it) */ - /********************************************************/ - printf("bss=0x%x ", head.a_bss); - if( (addr < ouraddr) && ((addr + head.a_bss) > ouraddr)) - { - pbzero(addr,ouraddr - (int)addr); - } - else - { - pbzero(addr,head.a_bss); - } - addr += head.a_bss; - -#ifdef LOADSYMS /* not yet, haven't worked this out yet */ - if (addr > 0x100000) - { - /********************************************************/ - /*copy in the symbol header */ - /********************************************************/ - pcpy(&head.a_syms, addr, sizeof(head.a_syms)); - addr += sizeof(head.a_syms); - - /********************************************************/ - /* READ in the symbol table */ - /********************************************************/ - printf("symbols=[+0x%x", head.a_syms); - xread(addr, head.a_syms); - addr += head.a_syms; - - /********************************************************/ - /* Followed by the next integer (another header) */ - /* more debug symbols? */ - /********************************************************/ - read(&i, sizeof(int)); - pcpy(&i, addr, sizeof(int)); - i -= sizeof(int); - addr += sizeof(int); - - - /********************************************************/ - /* and that many bytes of (debug symbols?) */ - /********************************************************/ - printf("+0x%x] ", i); - xread(addr, i); - addr += i; - } -#endif LOADSYMS - /********************************************************/ - /* and note the end address of all this */ - /********************************************************/ - - total = ((addr+sizeof(int)-1))&~(sizeof(int)-1); - printf("total=0x%x ", total); - bootdev = (MAKEBOOTDEV(maj, 0, 0, unit, part)) ; - /****************************************************************/ - /* copy that first page and overwrite any BIOS variables */ - /****************************************************************/ - printf("entry point=0x%x\n" ,(int)startaddr); - /* Under no circumstances overwrite precious BIOS variables! */ - pcpy(tmpbuf, startaddr, 0x400); - pcpy(tmpbuf + 0x500, startaddr + 0x500, 4096 - 0x500); - bootinfo.version=1; - bootinfo.kernelname=(char *)((int)name + (BOOTSEG<<4)); - bootinfo.nfs_diskless=0; - startprog((int)startaddr, howto, bootdev, (int)&bootinfo+(BOOTSEG<<4)); - return; -} - -#define NAMEBUF_LEN 100 - -char namebuf[NAMEBUF_LEN]; -getbootdev(howto) - int *howto; -{ - char c, *ptr = namebuf; - if (gets(namebuf)) { - while (c=*ptr) { - while (c==' ') - c = *++ptr; - if (!c) - return; - if (c=='-') - while ((c = *++ptr) && c!=' ') - switch (c) { - case 'r': - *howto |= RB_DFLTROOT; continue; - case 'a': - *howto |= RB_ASKNAME; continue; - case 'c': - *howto |= RB_CONFIG; continue; - case 's': - *howto |= RB_SINGLE; continue; - case 'd': - *howto |= RB_KDB; continue; - case 'b': - *howto |= RB_HALT; continue; - } - else { - name = ptr; - while ((c = *++ptr) && c!=' '); - if (c) - *ptr++ = 0; - } - } - } else - printf("\n"); -} - |