Annotation of sys/arch/hp300/dev/frodoreg.h, Revision 1.1
1.1 ! nbrk 1: /* $OpenBSD: frodoreg.h,v 1.2 2007/01/06 20:17:43 miod Exp $ */
! 2: /* $NetBSD: frodoreg.h,v 1.1 1997/05/12 08:03:49 thorpej Exp $ */
! 3:
! 4: /*
! 5: * Copyright (c) 1997 Michael Smith. All rights reserved.
! 6: *
! 7: * Redistribution and use in source and binary forms, with or without
! 8: * modification, are permitted provided that the following conditions
! 9: * are met:
! 10: * 1. Redistributions of source code must retain the above copyright
! 11: * notice, this list of conditions and the following disclaimer.
! 12: * 2. Redistributions in binary form must reproduce the above copyright
! 13: * notice, this list of conditions and the following disclaimer in the
! 14: * documentation and/or other materials provided with the distribution.
! 15: *
! 16: * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
! 17: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
! 18: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
! 19: * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
! 20: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
! 21: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
! 22: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
! 23: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
! 24: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
! 25: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
! 26: * SUCH DAMAGE.
! 27: */
! 28:
! 29: /* Base address of the Frodo part */
! 30: #define FRODO_BASE (INTIOBASE + 0x1c000)
! 31:
! 32: /*
! 33: * Where we find the 8250-like APCI ports, and how far apart they are.
! 34: */
! 35: #define FRODO_APCIBASE 0x0
! 36: #define FRODO_APCISPACE 0x20
! 37: #define FRODO_APCI_OFFSET(x) (FRODO_APCIBASE + ((x) * FRODO_APCISPACE))
! 38:
! 39: /*
! 40: * Other items in the Frodo part
! 41: */
! 42:
! 43: /* An mc146818-like calendar, but no battery... lame */
! 44: #define FRODO_CALENDAR 0x80
! 45:
! 46: #define FRODO_TIMER 0xa0 /* 8254-like timer */
! 47: #define FRODO_T1_CTR 0xa0 /* counter 1 */
! 48: #define FRODO_T2_CTR 0xa4 /* counter 2 */
! 49: #define FRODO_T3_CTR 0xa8 /* counter 3 */
! 50: #define FRODO_T_CTRL 0xac /* control register */
! 51: #define FRODO_T_PSCALE 0xb0 /* prescaler */
! 52: #define FRODO_T_PCOUNT 0xb4 /* precounter ? */
! 53: #define FRODO_T_OVCOUNT 0xb8 /* overflow counter (0, 1, 2) */
! 54:
! 55: #define FRODO_PIO 0xc0 /* programmable i/o registers start
! 56: here */
! 57: #define FRODO_IISR 0xc0 /* ISA Interrupt Status Register
! 58: (also PIR) */
! 59: #define FRODO_IISR_SERVICE (1<<0) /* service switch "on" if 0 */
! 60: #define FRODO_IISR_ILOW (1<<1) /* IRQ 3,4,5 or 6 on ISA if 0 */
! 61: #define FRODO_IISR_IMID (1<<2) /* IRQ 7,9,10 or 11 on ISA if 0 */
! 62: #define FRODO_IISR_IHI (1<<3) /* IRQ 12,13,14 or 15 on ISA if 0 */
! 63: /* bits 4 and 5 are DN2500 SCSI interrupts */
! 64: /* bit 6 is unused */
! 65: #define FRODO_IISR_IOCHK (1<<7) /* ISA board asserted IOCHK if low */
! 66:
! 67: #define FRODO_PIO_IPR 0xc4 /* input polarity register
! 68: (ints 7->0) */
! 69:
! 70: #define FRODO_PIO_IELR 0xc8 /* input edge/level register */
! 71: #define FRODO_PIO_ISA_CONTROL 0xcc /* ISA interrupts masking */
! 72:
! 73: /* This is probably not used on the 4xx */
! 74: #define FRODO_DIAGCTL 0xd0 /* Diagnostic Control Register */
! 75:
! 76: #define FRODO_PIC_MU 0xe0 /* upper Interrupt Mask register */
! 77: #define FRODO_PIC_ML 0xe4 /* lower Interrupt Mask register */
! 78: #define FRODO_PIC_PU 0xe8 /* upper Interrupt Pending register */
! 79: #define FRODO_PIC_PL 0xec /* lower Interrupt Pending register */
! 80: #define FRODO_PIC_IVR 0xf8 /* Interrupt Vector register */
! 81: #define FRODO_PIC_ACK 0xf8 /* Interrupt Acknowledge */
! 82:
! 83: /* Shorthand for register access. */
! 84: #define FRODO_READ(sc, reg) ((sc)->sc_regs[(reg)])
! 85: #define FRODO_WRITE(sc, reg, val) (sc)->sc_regs[(reg)] = (val)
! 86:
! 87: /* manipulate interrupt registers */
! 88: #define FRODO_GETMASK(sc) \
! 89: ((FRODO_READ((sc), FRODO_PIC_MU) << 8) | \
! 90: FRODO_READ((sc), FRODO_PIC_ML))
! 91: #define FRODO_SETMASK(sc, val) do { \
! 92: FRODO_WRITE((sc), FRODO_PIC_MU, ((val) >> 8) & 0xff); \
! 93: FRODO_WRITE((sc), FRODO_PIC_ML, (val) & 0xff); } while (0)
! 94:
! 95: #define FRODO_GETPEND(sc) \
! 96: ((FRODO_READ((sc), FRODO_PIC_PU) << 8) | \
! 97: FRODO_READ((sc), FRODO_PIC_PL))
! 98:
! 99: /*
! 100: * Interrupt lines. Use FRODO_INTR_BIT() below to get a bit
! 101: * suitable for one of the interrupt mask registers. Yes, line
! 102: * 0 is unused.
! 103: */
! 104: #define FRODO_INTR_ILOW 1
! 105: #define FRODO_INTR_IMID 2
! 106: #define FRODO_INTR_IHI 3
! 107: #define FRODO_INTR_SCSIDMA 4 /* DN2500 only */
! 108: #define FRODO_INTR_SCSI 5 /* DN2500 only */
! 109: #define FRODO_INTR_HORIZ 6
! 110: #define FRODO_INTR_IOCHK 7
! 111: #define FRODO_INTR_CALENDAR 8
! 112: #define FRODO_INTR_TIMER0 9
! 113: #define FRODO_INTR_TIMER1 10
! 114: #define FRODO_INTR_TIMER2 11
! 115: #define FRODO_INTR_APCI0 12
! 116: #define FRODO_INTR_APCI1 13
! 117: #define FRODO_INTR_APCI2 14
! 118: #define FRODO_INTR_APCI3 15
! 119:
! 120: #define FRODO_NINTR 16
! 121:
! 122: #define FRODO_INTR_ISA(l) ((l) != 0 && (l) <= FRODO_INTR_IHI)
! 123: #define FRODO_INTR_BIT(line) (1 << (line))
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