1 /* $NetBSD: pi1ppcreg.h,v 1.2 2009/03/05 01:38:12 msaitoh Exp $ */ 2 3 /*- 4 * Copyright (c) 2001 Alcove - Nicolas Souchu 5 * Copyright (c) 2005 Joe Britt <britt@danger.com> - SGI PI1 version 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 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 * 29 * FreeBSD: src/sys/isa/ppcreg.h,v 1.10.2.4 2001/10/02 05:21:45 nsouch Exp 30 * 31 */ 32 33 #ifndef __PI1PPCREG_H 34 #define __PI1PPCREG_H 35 36 /* see iocreg.h for data/ctl/status reg offsets */ 37 38 /* SPP mode control register bit positions. */ 39 #define STROBE 0x01 40 #define AUTOFEED 0x02 41 #define nINIT 0x04 42 #define SELECTIN 0x08 43 44 /* we emulate this bit */ 45 #define IRQENABLE 0x10 46 47 /* data dir in PS/2 mode */ 48 #define PCD 0x20 49 50 /* SPP status register bit positions. */ 51 /* #define TIMEOUT 0x01 */ 52 53 #define nFAULT 0x08 54 #define SELECT 0x10 55 #define PERROR 0x20 56 #define nACK 0x40 57 #define nBUSY 0x80 58 59 /* Flags indicating ready condition */ 60 #define SPP_READY (SELECT | nFAULT | nBUSY) 61 #define SPP_MASK (SELECT | nFAULT | PERROR | nBUSY) 62 63 /* Byte mode signals */ 64 #define HOSTCLK STROBE 65 #define HOSTBUSY AUTOFEED 66 #define ACTIVE1284 SELECTIN 67 #define PTRCLK nACK 68 #define PTRBUSY nBUSY 69 #define ACKDATAREQ PERROR 70 #define XFLAG SELECT 71 #define nDATAVAIL nFAULT 72 73 /* interrupt mask & status bit positions */ 74 75 /* these interrupts are asserted on rising AND falling edges */ 76 #define PI1_PLP_PERROR_INTR 0x80 77 #define PI1_PLP_FAULT_INTR 0x40 78 #define PI1_PLP_SELECT_INTR 0x20 79 80 /* this interrupt is only asserted on rising edge */ 81 #define PI1_PLP_ACK_INTR 0x04 82 83 #endif /* __PI1PPCREG_H */ 84