Annotation of sys/dev/eisa/eisareg.h, Revision 1.1
1.1 ! nbrk 1: /* $OpenBSD: eisareg.h,v 1.4 1996/05/05 12:42:24 deraadt Exp $ */
! 2: /* $NetBSD: eisareg.h,v 1.3 1996/04/09 22:46:13 cgd Exp $ */
! 3:
! 4: /*
! 5: * Copyright (c) 1995, 1996 Christopher G. Demetriou
! 6: * All rights reserved.
! 7: *
! 8: * Redistribution and use in source and binary forms, with or without
! 9: * modification, are permitted provided that the following conditions
! 10: * are met:
! 11: * 1. Redistributions of source code must retain the above copyright
! 12: * notice, this list of conditions and the following disclaimer.
! 13: * 2. Redistributions in binary form must reproduce the above copyright
! 14: * notice, this list of conditions and the following disclaimer in the
! 15: * documentation and/or other materials provided with the distribution.
! 16: * 3. All advertising materials mentioning features or use of this software
! 17: * must display the following acknowledgement:
! 18: * This product includes software developed by Christopher G. Demetriou
! 19: * for the NetBSD Project.
! 20: * 4. The name of the author may not be used to endorse or promote products
! 21: * derived from this software without specific prior written permission
! 22: *
! 23: * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
! 24: * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
! 25: * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
! 26: * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
! 27: * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
! 28: * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
! 29: * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
! 30: * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
! 31: * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
! 32: * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
! 33: */
! 34:
! 35: #ifndef __DEV_EISA_EISAREG_H__
! 36: #define __DEV_EISA_EISAREG_H__
! 37:
! 38: /*
! 39: * Register (etc.) descriptions for the EISA bus.
! 40:
! 41: * Mostly culled from EISA chipset descriptions in:
! 42: * Intel Peripheral Components Databook (1992)
! 43: */
! 44:
! 45: /*
! 46: * Slot I/O space size, and I/O address of a given slot.
! 47: */
! 48: #define EISA_SLOT_SIZE 0x1000
! 49: #define EISA_SLOT_ADDR(s) ((s) * EISA_SLOT_SIZE)
! 50:
! 51: /*
! 52: * Slot offsets for important/standard registers.
! 53: */
! 54: #define EISA_SLOTOFF_VID 0xc80 /* offset of vendor id regs */
! 55: #define EISA_NVIDREGS 2
! 56: #define EISA_SLOTOFF_PID 0xc82 /* offset of product id regs */
! 57: #define EISA_NPIDREGS 2
! 58:
! 59: #ifdef AHA284X_HACK
! 60: /*
! 61: * AHA-284x (VL bus) requires priming a register with the following values.
! 62: */
! 63: #define EISA_SLOTOFF_PRIMING EISA_SLOTOFF_VID /* offset */
! 64: #define EISA_PRIMING_VID(index) (0x80 + (index)) /* value for vendor */
! 65: #define EISA_PRIMING_PID(index) (0x82 + (index)) /* value for product */
! 66: #endif
! 67:
! 68: /*
! 69: * EISA ID functions, used to manipulate and decode EISA ID registers.
! 70: * ``Somebody was let out without adult supervision.''
! 71: */
! 72:
! 73: #define EISA_IDSTRINGLEN 8 /* length of ID string, incl. NUL */
! 74:
! 75: /*
! 76: * Vendor ID: three characters, encoded in 16 bits.
! 77: *
! 78: * EISA_VENDID_NODEV returns true if there's no device in the slot.
! 79: * EISA_VENDID_IDDELAY returns true if there's a device in the slot,
! 80: * but that device hasn't been configured by system firmware.
! 81: * EISA_VENDID_n returns the "n"th character of the vendor ID.
! 82: */
! 83: #define EISA_VENDID_NODEV(vid) \
! 84: (((vid)[0] & 0x80) != 0)
! 85: #define EISA_VENDID_IDDELAY(vid) \
! 86: (((vid)[0] & 0xf0) == 0x70)
! 87: #define EISA_VENDID_0(vid) \
! 88: ((((vid)[0] & 0x7c) >> 2) + '@')
! 89: #define EISA_VENDID_1(vid) \
! 90: (((((vid)[0] & 0x03) << 3) | (((vid)[1] & 0xe0) >> 5)) + '@')
! 91: #define EISA_VENDID_2(vid) \
! 92: (((vid)[1] & 0x1f) + '@')
! 93:
! 94: /*
! 95: * Product ID: four hex digits, encoded in 16 bits (normal, sort of).
! 96: *
! 97: * EISA_PRIDID_n returns the "n"th hex digit of the product ID.
! 98: */
! 99: #define __EISA_HEX_MAP "0123456789ABCDEF"
! 100: #define EISA_PRODID_0(pid) \
! 101: (__EISA_HEX_MAP[(((pid)[0] >> 4) & 0xf)])
! 102: #define EISA_PRODID_1(pid) \
! 103: (__EISA_HEX_MAP[(((pid)[0] >> 0) & 0xf)])
! 104: #define EISA_PRODID_2(pid) \
! 105: (__EISA_HEX_MAP[(((pid)[1] >> 4) & 0xf)])
! 106: #define EISA_PRODID_3(pid) \
! 107: (__EISA_HEX_MAP[(((pid)[1] >> 0) & 0xf)])
! 108:
! 109: #endif /* !__DEV_EISA_EISAREG_H__ */
CVSweb