/* $NetBSD: pi1ppcreg.h,v 1.2 2009/03/05 01:38:12 msaitoh Exp $ */ /*- * Copyright (c) 2001 Alcove - Nicolas Souchu * Copyright (c) 2005 Joe Britt <britt@danger.com> - SGI PI1 version * All rights reserved. * * 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. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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. * * FreeBSD: src/sys/isa/ppcreg.h,v 1.10.2.4 2001/10/02 05:21:45 nsouch Exp * */ #ifndef __PI1PPCREG_H #define __PI1PPCREG_H /* see iocreg.h for data/ctl/status reg offsets */ /* SPP mode control register bit positions. */ #define STROBE 0x01 #define AUTOFEED 0x02 #define nINIT 0x04 #define SELECTIN 0x08 /* we emulate this bit */ #define IRQENABLE 0x10 /* data dir in PS/2 mode */ #define PCD 0x20 /* SPP status register bit positions. */ /* #define TIMEOUT 0x01 */ #define nFAULT 0x08 #define SELECT 0x10 #define PERROR 0x20 #define nACK 0x40 #define nBUSY 0x80 /* Flags indicating ready condition */ #define SPP_READY (SELECT | nFAULT | nBUSY) #define SPP_MASK (SELECT | nFAULT | PERROR | nBUSY) /* Byte mode signals */ #define HOSTCLK STROBE #define HOSTBUSY AUTOFEED #define ACTIVE1284 SELECTIN #define PTRCLK nACK #define PTRBUSY nBUSY #define ACKDATAREQ PERROR #define XFLAG SELECT #define nDATAVAIL nFAULT /* interrupt mask & status bit positions */ /* these interrupts are asserted on rising AND falling edges */ #define PI1_PLP_PERROR_INTR 0x80 #define PI1_PLP_FAULT_INTR 0x40 #define PI1_PLP_SELECT_INTR 0x20 /* this interrupt is only asserted on rising edge */ #define PI1_PLP_ACK_INTR 0x04 #endif /* __PI1PPCREG_H */ |