/* $NetBSD: frodoreg.h,v 1.5.58.1 2024/06/22 10:57:10 martin Exp $ */ /* * Copyright (c) 1997 Michael Smith. 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. */ /* * Where we find the 8250-like APCI ports, and how far apart they are. */ #define FRODO_APCIBASE 0x0 #define FRODO_APCISPACE 0x20 #define FRODO_APCI_OFFSET(x) (FRODO_APCIBASE + ((x) * FRODO_APCISPACE)) /* * Other items in the Frodo part */ /* An mc146818-like calendar. Only 425e has a battery and an oscillator. */ #define FRODO_CALENDAR 0x80 #define FRODO_TIMER 0xa0 /* 8254-like timer */ #define FRODO_T1_CTR 0xa0 /* counter 1 */ #define FRODO_T2_CTR 0xa4 /* counter 2 */ #define FRODO_T3_CTR 0xa8 /* counter 3 */ #define FRODO_T_CTRL 0xac /* control register */ #define FRODO_T_PSCALE 0xb0 /* prescaler */ #define FRODO_T_PCOUNT 0xb4 /* precounter ? */ #define FRODO_T_OVCOUNT 0xb8 /* overflow counter (0, 1, 2) */ #define FRODO_PIO 0xc0 /* programmable i/o registers start here */ #define FRODO_IISR 0xc0 /* ISA Interrupt Status Register (also PIR) */ #define FRODO_IISR_SERVICE (1<<0) /* service switch "on" if 0 */ #define FRODO_IISR_ILOW (1<<1) /* IRQ 3,4,5 or 6 on ISA if 1 */ #define FRODO_IISR_IMID (1<<2) /* IRQ 7,9,10 or 11 on ISA if 1 */ #define FRODO_IISR_IHI (1<<3) /* IRQ 12,13,14 or 15 on ISA if 1 */ /* bits 4 and 5 are DN2500 SCSI interrupts */ /* bit 6 is unused */ #define FRODO_IISR_IOCHK (1<<7) /* ISA board asserted IOCHK if low */ #define FRODO_PIO_IPR 0xc4 /* input polarity register (ints 7->0) */ #define FRODO_PIO_IELR 0xc8 /* input edge/level register */ /* This is probably not used on the 4xx */ #define FRODO_DIAGCTL 0xd0 /* Diagnostic Control Register */ #define FRODO_PIC_MU 0xe0 /* upper Interrupt Mask register */ #define FRODO_PIC_ML 0xe4 /* lower Interrupt Mask register */ #define FRODO_PIC_PU 0xe8 /* upper Interrupt Pending register */ #define FRODO_PIC_PL 0xec /* lower Interrupt Pending register */ #define FRODO_PIC_IVR 0xf8 /* Interrupt Vector register */ #define FRODO_PIC_ACK 0xf8 /* Interrupt Acknowledge */ /* Shorthand for register access. */ #define FRODO_READ(sc, reg) ((sc)->sc_regs[(reg)]) #define FRODO_WRITE(sc, reg, val) (sc)->sc_regs[(reg)] = (val) /* manipulate interrupt registers */ #define FRODO_GETMASK(sc) \ ((FRODO_READ((sc), FRODO_PIC_MU) << 8) | \ FRODO_READ((sc), FRODO_PIC_ML)) #define FRODO_SETMASK(sc, val) do { \ FRODO_WRITE((sc), FRODO_PIC_MU, ((val) >> 8) & 0xff); \ FRODO_WRITE((sc), FRODO_PIC_ML, (val) & 0xff); } while (0) #define FRODO_GETPEND(sc) \ ((FRODO_READ((sc), FRODO_PIC_PU) << 8) | \ FRODO_READ((sc), FRODO_PIC_PL)) #define FRODO_IPEND(sc) \ (FRODO_READ((sc), FRODO_PIC_ACK) & 0x0f) /* * Interrupt lines. Use FRODO_INTR_BIT() below to get a bit * suitable for one of the interrupt mask registers. Yes, line * 0 is unused. */ #define FRODO_INTR_ILOW 1 #define FRODO_INTR_IMID 2 #define FRODO_INTR_IHI 3 #define FRODO_INTR_SCSIDMA 4 /* DN2500 only */ #define FRODO_INTR_SCSI 5 /* DN2500 only */ #define FRODO_INTR_HORIZ 6 #define FRODO_INTR_IOCHK 7 #define FRODO_INTR_CALENDAR 8 #define FRODO_INTR_TIMER0 9 #define FRODO_INTR_TIMER1 10 #define FRODO_INTR_TIMER2 11 #define FRODO_INTR_APCI0 12 #define FRODO_INTR_APCI1 13 #define FRODO_INTR_APCI2 14 #define FRODO_INTR_APCI3 15 #define FRODO_NINTR 16 #define FRODO_INTR_BIT(line) (1 << (line))