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Diffstat (limited to 'sys/i386/isa/isa.h')
| -rw-r--r-- | sys/i386/isa/isa.h | 188 |
1 files changed, 188 insertions, 0 deletions
diff --git a/sys/i386/isa/isa.h b/sys/i386/isa/isa.h new file mode 100644 index 0000000..a9c042d --- /dev/null +++ b/sys/i386/isa/isa.h @@ -0,0 +1,188 @@ +/*- + * 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. + * + * @(#)isa.h 5.7 (Berkeley) 5/9/91 + * PATCHES MAGIC LEVEL PATCH THAT GOT US HERE + * -------------------- ----- ---------------------- + * CURRENT PATCH LEVEL: 3 00158 + * -------------------- ----- ---------------------- + * + * 15 Feb 93 Julian Elischer Added entries for some scsi adapters + * 06 Apr 93 Rodney W. Grimes Added com3 and com4, added IO_ISASIZES + * section + * 26 Apr 93 Bruce Evans Support for intr-0.1 + */ + +/* + * ISA Bus conventions + */ + +#ifndef LOCORE +#include <sys/cdefs.h> + +unsigned char rtcin __P((int)); +extern unsigned int atdevbase; /* offset in virtual memory of ISA io mem */ +void sysbeep __P((int, int)); +unsigned kbd_8042cmd __P((int)); +struct isa_device; +int isa_irq_pending __P((struct isa_device *dvp)); +#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 /* 8252 Timer #1 */ +#define IO_TIMER2 0x048 /* 8252 Timer #2 */ +#define IO_KBD 0x060 /* 8042 Keyboard */ +#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 |
