/*- * Copyright (c) 2009 TAKAHASHI Yoshihiro <nyan@FreeBSD.org> * 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. * */ #include <sys/cdefs.h> __FBSDID("$FreeBSD$"); #include <btxv86.h> #include <machine/cpufunc.h> #define _KERNEL #include <pc98/pc98/pc98_machdep.h> /* * Set machine type to PC98_SYSTEM_PARAMETER. */ void set_machine_type(void) { int i; u_long ret, data; /* PC98_SYSTEM_PARAMETER (0x501) */ ret = ((*(u_char *)PTOV(0xA1501)) & 0x08) >> 3; /* Wait V-SYNC */ while (inb(0x60) & 0x20) {} while (!(inb(0x60) & 0x20)) {} /* ANK 'A' font */ outb(0xa1, 0x00); outb(0xa3, 0x41); /* M_NORMAL, use CG window (all NEC OK) */ for (i = data = 0; i < 4; i++) data += *((u_long *)PTOV(0xA4000) + i); /* 0xa4000 */ if (data == 0x6efc58fc) /* DA data */ ret |= M_NEC_PC98; else ret |= M_EPSON_PC98; ret |= (inb(0x42) & 0x20) ? M_8M : 0; /* PC98_SYSTEM_PARAMETER(0x400) */ if ((*(u_char *)PTOV(0xA1400)) & 0x80) ret |= M_NOTE; if (ret & M_NEC_PC98) { /* PC98_SYSTEM_PARAMETER(0x458) */ if ((*(u_char *)PTOV(0xA1458)) & 0x80) ret |= M_H98; else ret |= M_NOT_H98; } else ret |= M_NOT_H98; (*(u_long *)PTOV(0xA1620)) = ret; } |