/*- * Copyright (c) 1990 The Regents of the University of California. * All rights reserved. * * This code is derived from software contributed to Berkeley by * William Jolitz. * * 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 the University of * California, Berkeley and its contributors. * 4. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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. * * from: @(#)isa.h 5.7 (Berkeley) 5/9/91 * $Id: isa.h,v 1.4 1994/01/05 15:03:28 rgrimes Exp $ */ #ifndef _I386_ISA_ISA_H_ #define _I386_ISA_ISA_H_ 1 /* * ISA Bus conventions */ #ifndef LOCORE #include extern unsigned int atdevbase; /* offset in virtual memory of ISA io mem */ unsigned char rtcin __P((int)); #endif /* * Input / Output Port Assignments */ #ifndef IO_BEGIN #define IO_ISABEGIN 0x000 /* 0x000 - Beginning of I/O Registers */ /* CPU Board */ #define IO_DMA1 0x000 /* 8237A DMA Controller #1 */ #define IO_ICU1 0x020 /* 8259A Interrupt Controller #1 */ #define IO_TIMER1 0x040 /* 8253 Timer #1 */ #define IO_TIMER2 0x048 /* 8253 Timer #2 */ #define IO_KBD 0x060 /* 8042 Keyboard */ #define IO_PPI 0x061 /* Programmabel Peripheral Interface */ #define IO_RTC 0x070 /* RTC */ #define IO_NMI IO_RTC /* NMI Control */ #define IO_DMAPG 0x080 /* DMA Page Registers */ #define IO_ICU2 0x0A0 /* 8259A Interrupt Controller #2 */ #define IO_DMA2 0x0C0 /* 8237A DMA Controller #2 */ #define IO_NPX 0x0F0 /* Numeric Coprocessor */ /* Cards */ /* 0x100 - 0x16F Open */ #define IO_WD2 0x170 /* Secondary Fixed Disk Controller */ /* 0x178 - 0x1EF Open */ #define IO_WD1 0x1f0 /* Primary Fixed Disk Controller */ #define IO_GAME 0x200 /* Game Controller */ /* 0x208 - 0x277 Open */ #define IO_LPT2 0x278 /* Parallel Port #2 */ /* 0x280 - 0x2E7 Open */ #define IO_COM4 0x2e8 /* COM4 i/o address */ /* 0x2F0 - 0x2F7 Open */ #define IO_COM2 0x2f8 /* COM2 i/o address */ /* 0x300 - 0x32F Open */ #define IO_BT0 0x330 /* bustek 742a default addr. */ #define IO_AHA0 0x330 /* adaptec 1542 default addr. */ #define IO_UHA0 0x330 /* ultrastore 14f default addr. */ #define IO_BT1 0x334 /* bustek 742a default addr. */ #define IO_AHA1 0x334 /* adaptec 1542 default addr. */ /* 0x338 - 0x36F Open */ #define IO_FD2 0x370 /* secondary base i/o address */ #define IO_LPT1 0x378 /* Parallel Port #1 */ /* 0x380 - 0x3AF Open */ #define IO_MDA 0x3B0 /* Monochome Adapter */ #define IO_LPT3 0x3BC /* Monochome Adapter Printer Port */ #define IO_VGA 0x3C0 /* E/VGA Ports */ #define IO_CGA 0x3D0 /* CGA Ports */ /* 0x3E0 - 0x3E7 Open */ #define IO_COM3 0x3e8 /* COM3 i/o address */ #define IO_FD1 0x3f0 /* primary base i/o address */ #define IO_COM1 0x3f8 /* COM1 i/o address */ #define IO_ISAEND 0x3FF /* - 0x3FF End of I/O Registers */ #endif IO_ISABEGIN /* * Input / Output Port Sizes - these are from several sources, and tend * to be the larger of what was found, ie COM ports can be 4, but some * boards do not fully decode the address, thus 8 ports are used. */ #ifndef IO_ISASIZES #define IO_ISASIZES #define IO_COMSIZE 8 /* 8250, 16X50 com controllers (4?) */ #define IO_CGASIZE 16 /* CGA controllers */ #define IO_DMASIZE 16 /* 8237 DMA controllers */ #define IO_DPGSIZE 32 /* 74LS612 DMA page reisters */ #define IO_FDCSIZE 8 /* Nec765 floppy controllers */ #define IO_WDCSIZE 8 /* WD compatible disk controllers */ #define IO_GAMSIZE 16 /* AT compatible game controllers */ #define IO_ICUSIZE 16 /* 8259A interrupt controllers */ #define IO_KBDSIZE 16 /* 8042 Keyboard controllers */ #define IO_LPTSIZE 8 /* LPT controllers, some use only 4 */ #define IO_MDASIZE 16 /* Monochrome display controllers */ #define IO_RTCSIZE 16 /* CMOS real time clock, NMI control */ #define IO_TMRSIZE 16 /* 8253 programmable timers */ #define IO_NPXSIZE 16 /* 80387/80487 NPX registers */ #define IO_VGASIZE 16 /* VGA controllers */ #endif /* IO_ISASIZES */ /* * Input / Output Memory Physical Addresses */ #ifndef IOM_BEGIN #define IOM_BEGIN 0x0a0000 /* Start of I/O Memory "hole" */ #define IOM_END 0x100000 /* End of I/O Memory "hole" */ #define IOM_SIZE (IOM_END - IOM_BEGIN) #endif IOM_BEGIN /* * RAM Physical Address Space (ignoring the above mentioned "hole") */ #ifndef RAM_BEGIN #define RAM_BEGIN 0x0000000 /* Start of RAM Memory */ #define RAM_END 0x1000000 /* End of RAM Memory */ #define RAM_SIZE (RAM_END - RAM_BEGIN) #endif RAM_BEGIN /* * Oddball Physical Memory Addresses */ #ifndef COMPAQ_RAMRELOC #define COMPAQ_RAMRELOC 0x80c00000 /* Compaq RAM relocation/diag */ #define COMPAQ_RAMSETUP 0x80c00002 /* Compaq RAM setup */ #define WEITEK_FPU 0xC0000000 /* WTL 2167 */ #define CYRIX_EMC 0xC0000000 /* Cyrix EMC */ #endif COMPAQ_RAMRELOC #endif /* _I386_ISA_ISA_H_ */