diff options
Diffstat (limited to 'usr.bin/doscmd/bios.c')
| -rw-r--r-- | usr.bin/doscmd/bios.c | 306 |
1 files changed, 0 insertions, 306 deletions
diff --git a/usr.bin/doscmd/bios.c b/usr.bin/doscmd/bios.c deleted file mode 100644 index 0577c74..0000000 --- a/usr.bin/doscmd/bios.c +++ /dev/null @@ -1,306 +0,0 @@ -/* - * Copyright (c) 1992, 1993, 1996 - * Berkeley Software Design, Inc. 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. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by Berkeley Software - * Design, Inc. - * - * THIS SOFTWARE IS PROVIDED BY Berkeley Software Design, Inc. ``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 Berkeley Software Design, Inc. 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. - * - * BSDI bios.c,v 2.3 1996/04/08 19:32:19 bostic Exp - */ - -#include <sys/cdefs.h> -__FBSDID("$FreeBSD$"); - -#include "doscmd.h" -#include "mouse.h" -#include "com.h" - -#define BIOS_copyright 0xfe000 -#define BIOS_reset 0xfe05b -#define BIOS_nmi 0xfe2c3 -#define BIOS_hdisk_table 0xfe401 -#define BIOS_boot 0xfe6f2 -#define BIOS_comm_table 0xfe729 -#define BIOS_comm_io 0xfe739 -#define BIOS_keyboard_io 0xfe82e -#define BIOS_keyboard_isr 0xfe987 -#define BIOS_fdisk_io 0xfec59 -#define BIOS_fdisk_isr 0xfef57 -#define BIOS_disk_parms 0xfefc7 -#define BIOS_printer_io 0xfefd2 -#define BIOS_video_io 0xff065 -#define BIOS_video_parms 0xff0a4 -#define BIOS_mem_size 0xff841 -#define BIOS_equipment 0xff84d -#define BIOS_cassette_io 0xff859 -#define BIOS_video_font 0xffa6e -#define BIOS_time_of_day 0xffe6e -#define BIOS_timer_int 0xffea5 -#define BIOS_vector 0xffef3 -#define BIOS_dummy_iret 0xfff53 -#define BIOS_print_screen 0xfff54 -#define BIOS_hard_reset 0xffff0 -#define BIOS_date_stamp 0xffff5 -#define BIOS_hardware_id 0xffffe - -static u_char disk_params[] = { - 0xdf, 2, 0x25, 2, 0x0f, 0x1b, 0xff, 0x54, 0xf6, 0x0f, 8, -}; - -static u_short comm_table[] = { - 1047, 768, 384, 192, 96, 48, 24, 12, -}; - -/* exports */ - -int nfloppies = 0; -int ndisks = 0; -int nserial = 0; -int nparallel = 0; -unsigned long rom_config; - -/* -** BIOS equipment list -*/ -static void -int11(regcontext_t *REGS) -{ - R_AX = - (nfloppies ? 1:0) | /* do we have any floppydisks? */ - (0x2 << 4) | /* 80x25 colour */ - ((nfloppies-1) << 6) | /* how many floppies? */ - (nserial << 9) | /* serial ports? */ - (nparallel << 14); /* parallel ports? */ -} - -/* -** get installed memory -*/ -static void -int12(regcontext_t *REGS) -{ - R_AX = 640; -} - -/* -** assorted oddments -*/ -static void -int15(regcontext_t *REGS) -{ - R_FLAGS &= ~PSL_C; - - switch (R_AH) { - case 0x00: /* Get Cassette Status */ - R_AH = 0x86; - R_FLAGS |= PSL_C; /* We don't support a cassette */ - break; - case 0x04: /* Set ABIOS table */ - R_FLAGS |= PSL_C; /* We don't support it */ - break; - case 0x4f: /* Keyboard intercept */ - debug(D_TRAPS | 0x15, "BIOS: Keyboard intercept\n"); - /* Don't translate scan code. */ - break; - case 0x88: - get_raw_extmemory_info(REGS); - break; - case 0xc0: /* Get configuration */ - debug(D_TRAPS | 0x15, "BIOS: Get configuration\n"); - PUTVEC(R_ES, R_BX, rom_config); - R_AH = 0; - break; - case 0xc1: /* Get extended BIOS data area */ - R_FLAGS |= PSL_C; - break; - case 0xc2: /* Pointing device */ - debug(D_TRAPS | 0x15, "BIOS: Pointing device?\n"); - R_FLAGS |= PSL_C; - R_AH = 5; /* No pointer */ - break; - default: - unknown_int2(0x15, R_AX, REGS); - break; - } -} - -void -bios_init(void) -{ - int i, j, k; - u_char *jtab; - struct timeval tv; - time_t tv_sec; - struct timezone tz; - struct tm tm; - u_long vec; - - strcpy((char *)BIOS_copyright, - "Copyright (C) 1993 Krystal Technologies/BSDI"); - - *(u_short *)BIOS_reset = 0xffcd; - *(u_short *)BIOS_nmi = 0xffcd; - *(u_short *)BIOS_boot = 0xffcd; - *(u_short *)BIOS_comm_io = 0xffcd; - *(u_short *)BIOS_keyboard_io = 0xffcd; - *(u_short *)BIOS_keyboard_isr = 0xffcd; - *(u_short *)BIOS_fdisk_io = 0xffcd; - *(u_short *)BIOS_fdisk_isr = 0xffcd; - *(u_short *)BIOS_printer_io = 0xffcd; - *(u_short *)BIOS_video_io = 0xffcd; - *(u_short *)BIOS_cassette_io = 0xffcd; - *(u_short *)BIOS_time_of_day = 0xffcd; - *(u_short *)BIOS_timer_int = 0xffcd; - *(u_short *)BIOS_dummy_iret = 0xffcd; - *(u_short *)BIOS_print_screen = 0xffcd; - *(u_short *)BIOS_hard_reset = 0xffcd; - *(u_short *)BIOS_mem_size = 0xffcd; - *(u_short *)BIOS_equipment = 0xffcd; - *(u_short *)BIOS_vector = 0xffcd; - *(u_char *)0xffff2 = 0xcf; /* IRET */ - - memcpy((u_char *)BIOS_disk_parms, disk_params, sizeof(disk_params)); - memcpy((u_char *)BIOS_comm_table, comm_table, sizeof(comm_table)); - - *(u_short *)BIOS_video_font = 0xffcd; - - jtab = (u_char *)BIOS_date_stamp; - *jtab++ = '1'; - *jtab++ = '0'; - *jtab++ = '/'; - *jtab++ = '3'; - *jtab++ = '1'; - *jtab++ = '/'; - *jtab++ = '9'; - *jtab++ = '3'; - - *(u_char *)BIOS_hardware_id = 0xfc; /* Identify as a PC/AT */ - - /* - * Interrupt revectors F000:0000 - F000:03ff - */ - for (i = 0, j = 0, k = 0; i < 0x100; ++i) { - if ((i >= 0x60 && i < 0x68) || - (i >= 0x78 && i < 0xe2)) - continue; - if ((i >= 0x00 && i < 0x2f) || - (i >= 0x30 && i < 0xfe)) { - ivec[i] = 0xF0300000L | (k * 1); - jtab = (u_char *)VECPTR(ivec[i]); - *jtab++ = 0xf4; /* HLT */ - ++k; - } else { - ivec[i] = 0xF0000000L | (j * 6); - jtab = (u_char *)VECPTR(ivec[i]); - *jtab++ = 0xcd; /* INT i */ - *jtab++ = i; - *jtab++ = 0xca; /* RETF 2 */ - *jtab++ = 2; - *jtab++ = 0; - ++j; - } - } - - /* - * Misc variables from F000:0400 - F000:0fff - */ - rom_config = 0xF0000400; - jtab = (u_char *)VECPTR(rom_config); - *jtab++ = 20; /* length of entry */ - *jtab++ = 0; - *jtab++ = *(u_char *)BIOS_hardware_id; - *jtab++ = 0x00; /* Sub model */ - *jtab++ = 0x01; /* Bios Rev Enhanced kbd w/3.5" floppy */ - *jtab++ = 0x20; /* real time clock present */ - *jtab++ = 0; /* Reserved */ - *jtab++ = 0; - *jtab++ = 0; - *jtab++ = 0; - strcpy((char *)jtab, "BSDI BIOS"); - *jtab += 10; - - InDOS = jtab++; - *InDOS = 0; - - mouse_area = jtab; - jtab += 0x10; - - *(u_short *)&BIOSDATA[0x10] = - (1 << 0) | /* Diskette avail for boot */ - (1 << 1) | /* Math co-processor */ - (nmice << 2) | /* No pointing device */ - (2 << 4) | /* Initial video (80 x 25 C) */ - ((nfloppies - 1) << 6) | /* Number of floppies - 1 */ - (nserial << 9) | /* Number of serial devices */ - (nparallel << 14); /* Number of parallel devices */ - - - *(u_short *)&BIOSDATA[0x13] = 640; /* Amount of memory */ - BIOSDATA[0x75] = ndisks; /* number of fixed disks */ - - BIOSDATA[0x8F] = 0; - if (nfloppies >= 1) { - BIOSDATA[0x8F] |= 0x04; - BIOSDATA[0x90] = 0x40; - } - if (nfloppies >= 2) { - BIOSDATA[0x8F] |= 0x40; - BIOSDATA[0x91] = 0x40; - } - - gettimeofday(&tv, &tz); - tv_sec = tv.tv_sec; - tm = *localtime(&tv_sec); - *(u_long *)&BIOSDATA[0x6c] = - (((tm.tm_hour * 60 + tm.tm_min) * 60) + tm.tm_sec) * 182 / 10; - - vec = insert_softint_trampoline(); - ivec[0x11] = vec; - register_callback(vec, int11, "int 11"); - - vec = insert_softint_trampoline(); - ivec[0x12] = vec; - register_callback(vec, int12, "int 12"); - - vec = insert_softint_trampoline(); - ivec[0x14] = vec; - register_callback(vec, int14, "int 14"); - - vec = insert_softint_trampoline(); - ivec[0x15] = vec; - register_callback(vec, int15, "int 15"); - - vec = insert_softint_trampoline(); - ivec[0x16] = vec; - register_callback(vec, int16, "int 16"); - - vec = insert_softint_trampoline(); - ivec[0x17] = vec; - register_callback(vec, int17, "int 17"); - - vec = insert_softint_trampoline(); - ivec[0x1a] = vec; - register_callback(vec, int1a, "int 1a"); -} |
