140 lines
3.9 KiB
C
140 lines
3.9 KiB
C
|
/*
|
||
|
|
* 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
|
||
|
|
*
|
||
|
|
* $Id: icu.h,v 1.1 1994/05/17 17:31:04 phil Exp $
|
||
|
|
*/
|
||
|
|
|
||
|
|
/* 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
|