NetBSD/sys/arch/pc532/include/icu.h

140 lines
3.9 KiB
C

/* $NetBSD: icu.h,v 1.2 1994/10/26 08:24:29 cgd Exp $ */
/*
* Copyright (c) 1993 Philip A. Nelson.
* 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.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Philip A. Nelson.
* 4. The name of Philip A. Nelson may not be used to endorse or promote
* products derived from this software without specific prior written
* permission.
*
* THIS SOFTWARE IS PROVIDED BY PHILIP NELSON ``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 PHILIP NELSON 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.
*
* icu.h
*/
/* icu.h: defines for use with the ns32532 icu. */
/* To get things working..... */
#define VEC_ICU 0x10
/* The address of the ICU! */
#define ICU_ADR 0xfffffe00
/* ICU clock speed. */
#define ICU_CLK_HZ 3686400/4 /* raw ICU clock speed */
/* ICU registers
*/
#define HVCT 0
#define SVCT 1
#define ELTG 2
#define TPL 4
#define IPND 6
#define ISRV 8
#define IMSK 10
#define CSRC 12
#define FPRT 14
#define MCTL 16
#define OCASN 17
#define CIPTR 18
#define PDAT 19
#define IPS 20
#define PDIR 21
#define CCTL 22
#define CICTL 23
#define LCSV 24
#define HCSV 26
#define LCCV 28
#define HCCV 30
/* Hardware interrupt request lines.
*/
#define IR_CLK 2 /* highest priority */
#define IR_SCSI0 5 /* Adaptec 6250 */
#define IR_SCSI1 4 /* NCR DP8490 */
#define IR_TTY0 13
#define IR_TTY1 11
#define IR_TTY2 9
#define IR_TTY3 7
/* SCSI controllers */
#define AIC6250 0
#define DP8490 1
/* Interrupt enable bits.
*
* SCSI hard because you cannot disable all the interrupts on the 5380.
*/
#define IMASK (~((1 << IR_CLK) | \
(1 << IR_SCSI0) | \
(0 << IR_SCSI1) | /* 8490 off for now */\
(1 << IR_TTY0) | \
(1 << IR_TTY1) | \
(1 << IR_TTY2) | \
(1 << IR_TTY3) \
) \
)
/* edge polarity
* 0 0 falling edge
* 0 1 rising edge
* 1 0 low level
* 1 1 high level
*
*/
#define IEDGE (~((1<<IR_TTY0)| \
(1<<IR_TTY1)| \
(1<<IR_TTY2)| \
(1<<IR_TTY3)| \
(1<<IR_SCSI0)| \
(0<<IR_SCSI1)))
#define IPOLARITY (1 << IR_SCSI1)
/* Bit Masks for the SPL routines. Needs changing if the IR_XXX values
change. This includes software "interrupts" -- Bit masks in the upper
half of the word. */
#define SPL_NET 0x20000 /* net */
#define SPL_SOFTCLK 0x10000 /* Soft clock interrupt. */
#define SPL_IMP 0x22a80 /* Must include ttyX */
#define SPL_CLK 0x0004 /* 1 << IR_CLK */
#define SPL_AIC 0x0020
#define SPL_DP 0x0010
#define SPL_UART0 0x2000 /* TTY0 & TTY1 */
#define SPL_UART1 0x0800 /* TTY2 & TTY3 */
#define SPL_UART2 0x0200 /* TTY4 & TTY5 */
#define SPL_UART3 0x0080 /* TTY6 & TTY7 */
#define ints_off bicpsrw PSR_I
#define ints_on bispsrw PSR_I
#ifndef LOCORE
int PL_bio, PL_tty, PL_net, PL_zero;
#endif