1 /* $NetBSD: eisareg.h,v 1.5 2000/08/11 00:44:37 thorpej Exp $ */ 2 3 /* 4 * Copyright (c) 1995, 1996 Christopher G. Demetriou 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by Christopher G. Demetriou 18 * for the NetBSD Project. 19 * 4. The name of the author may not be used to endorse or promote products 20 * derived from this software without specific prior written permission 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 23 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 24 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 25 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 26 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 27 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 28 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 29 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 30 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 31 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 32 */ 33 34 #ifndef __DEV_EISA_EISAREG_H__ 35 #define __DEV_EISA_EISAREG_H__ 36 37 /* 38 * Register (etc.) descriptions for the EISA bus. 39 * 40 * Mostly culled from EISA chipset descriptions in: 41 * Intel Peripheral Components Databook (1992) 42 */ 43 44 /* 45 * Slot I/O space size, and I/O address of a given slot. 46 */ 47 #define EISA_SLOT_SIZE 0x1000 48 #define EISA_SLOT_ADDR(s) ((s) * EISA_SLOT_SIZE) 49 50 /* 51 * Slot offsets for important/standard registers. 52 */ 53 #define EISA_SLOTOFF_VID 0xc80 /* offset of vendor id regs */ 54 #define EISA_NVIDREGS 2 55 #define EISA_SLOTOFF_PID 0xc82 /* offset of product id regs */ 56 #define EISA_NPIDREGS 2 57 58 59 /* 60 * EISA ID functions, used to manipulate and decode EISA ID registers. 61 * ``Somebody was let out without adult supervision.'' 62 */ 63 64 #define EISA_IDSTRINGLEN 8 /* length of ID string, incl. NUL */ 65 66 /* 67 * Vendor ID: three characters, encoded in 16 bits. 68 * 69 * EISA_VENDID_NODEV returns true if there's no device in the slot. 70 * EISA_VENDID_IDDELAY returns true if there's a device in the slot, 71 * but that device hasn't been configured by system firmware. 72 * EISA_VENDID_n returns the "n"th character of the vendor ID. 73 */ 74 #define EISA_VENDID_NODEV(vid) \ 75 (((vid)[0] & 0x80) != 0) 76 #define EISA_VENDID_IDDELAY(vid) \ 77 (((vid)[0] & 0xf0) == 0x70) 78 #define EISA_VENDID_0(vid) \ 79 ((((vid)[0] & 0x7c) >> 2) + '@') 80 #define EISA_VENDID_1(vid) \ 81 (((((vid)[0] & 0x03) << 3) | (((vid)[1] & 0xe0) >> 5)) + '@') 82 #define EISA_VENDID_2(vid) \ 83 (((vid)[1] & 0x1f) + '@') 84 85 /* 86 * Product ID: four hex digits, encoded in 16 bits (normal, sort of). 87 * 88 * EISA_PRIDID_n returns the "n"th hex digit of the product ID. 89 */ 90 #define __EISA_HEX_MAP "0123456789ABCDEF" 91 #define EISA_PRODID_0(pid) \ 92 (__EISA_HEX_MAP[(((pid)[0] >> 4) & 0xf)]) 93 #define EISA_PRODID_1(pid) \ 94 (__EISA_HEX_MAP[(((pid)[0] >> 0) & 0xf)]) 95 #define EISA_PRODID_2(pid) \ 96 (__EISA_HEX_MAP[(((pid)[1] >> 4) & 0xf)]) 97 #define EISA_PRODID_3(pid) \ 98 (__EISA_HEX_MAP[(((pid)[1] >> 0) & 0xf)]) 99 100 #endif /* !__DEV_EISA_EISAREG_H__ */ 101