204 lines
6.4 KiB
C
204 lines
6.4 KiB
C
/* $NetBSD: viareg.h,v 1.6 1997/02/28 07:41:41 scottr Exp $ */
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/*-
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* Copyright (C) 1993 Allen K. Briggs, Chris P. Caputo,
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* Michael L. Finch, Bradley A. Grantham, and
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* Lawrence A. Kesteloot
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the Alice Group.
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* 4. The names of the Alice Group or any of its members may not be used
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* to endorse or promote products derived from this software without
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* specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE ALICE GROUP ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE ALICE GROUP BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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/*
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Prototype VIA control definitions
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06/04/92,22:33:57 BG Let's see what I can do.
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*/
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/* VIA1 data register A */
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#define DA1I_vSCCWrReq 0x80
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#define DA1O_vPage2 0x40
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#define DA1I_CPU_ID1 0x40
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#define DA1O_vHeadSel 0x20
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#define DA1O_vOverlay 0x10
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#define DA1O_vSync 0x08
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#define DA1O_RESERVED2 0x04
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#define DA1O_RESERVED1 0x02
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#define DA1O_RESERVED0 0x01
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/* VIA1 data register B */
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#define DB1I_Par_Err 0x80
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#define DB1O_vSndEnb 0x80
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#define DB1O_Par_Enb 0x40
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#define DB1O_vFDesk2 0x20
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#define DB1O_vFDesk1 0x10
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#define DB1I_vFDBInt 0x08
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#define DB1O_rTCEnb 0x04
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#define DB1O_rTCCLK 0x02
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#define DB1O_rTCData 0x01
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#define DB1I_rTCData 0x01
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/* VIA2 data register A */
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#define DA2O_v2Ram1 0x80
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#define DA2O_v2Ram0 0x40
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#define DA2I_v2IRQ0 0x40
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#define DA2I_v2IRQE 0x20
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#define DA2I_v2IRQD 0x10
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#define DA2I_v2IRQC 0x08
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#define DA2I_v2IRQB 0x04
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#define DA2I_v2IRQA 0x02
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#define DA2I_v2IRQ9 0x01
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/* VIA2 data register B */
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#define DB2O_v2VBL 0x80
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#define DB2O_Par_Test 0x80
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#define DB2I_v2SNDEXT 0x40
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#define DB2I_v2TM0A 0x20
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#define DB2I_v2TM1A 0x10
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#define DB2I_vFC3 0x08
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#define DB2O_vFC3 0x08
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#define DB2O_v2PowerOff 0x04
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#define DB2O_v2BusLk 0x02
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#define DB2O_vCDis 0x01
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#define DB2O_CEnable 0x01
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/*
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* VIA1 interrupts
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*/
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#define VIA1_T1 6
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#define VIA1_T2 5
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#define VIA1_ADBCLK 4
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#define VIA1_ADBDATA 3
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#define VIA1_ADBRDY 2
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#define VIA1_VBLNK 1
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#define VIA1_ONESEC 0
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/* VIA1 interrupt bits */
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#define V1IF_IRQ 0x80
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#define V1IF_T1 (1 << VIA1_T1)
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#define V1IF_T2 (1 << VIA1_T2)
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#define V1IF_ADBCLK (1 << VIA1_ADBCLK)
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#define V1IF_ADBDATA (1 << VIA1_ADBDATA)
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#define V1IF_ADBRDY (1 << VIA1_ADBRDY)
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#define V1IF_VBLNK (1 << VIA1_VBLNK)
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#define V1IF_ONESEC (1 << VIA1_ONESEC)
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/*
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* VIA2 interrupts
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*/
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#define VIA2_T1 6
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#define VIA2_T2 5
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#define VIA2_ASC 4
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#define VIA2_SCSIIRQ 3
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#define VIA2_EXPIRQ 2
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#define VIA2_SLOTINT 1
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#define VIA2_SCSIDRQ 0
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/* VIA2 interrupt bits */
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#define V2IF_IRQ 0x80
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#define V2IF_T1 (1 << VIA2_T1)
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#define V2IF_T2 (1 << VIA2_T2)
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#define V2IF_ASC (1 << VIA2_ASC)
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#define V2IF_SCSIIRQ (1 << VIA2_SCSIIRQ)
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#define V2IF_EXPIRQ (1 << VIA2_EXPIRQ)
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#define V2IF_SLOTINT (1 << VIA2_SLOTINT)
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#define V2IF_SCSIDRQ (1 << VIA2_SCSIDRQ)
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#define VIA1_INTS (V1IF_T1 | V1IF_ADBRDY)
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#define VIA2_INTS (V2IF_T1 | V2IF_ASC | V2IF_SCSIIRQ | V2IF_SLOTINT | \
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V2IF_SCSIDRQ)
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#define RBV_INTS (V2IF_T1 | V2IF_ASC | V2IF_SCSIIRQ | V2IF_SLOTINT | \
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V2IF_SCSIDRQ | V1IF_ADBRDY)
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#define ACR_T1LATCH 0x40
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extern volatile unsigned char *Via1Base;
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extern volatile unsigned char *Via2Base; /* init in VIA_Initialize */
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#define VIA1_addr Via1Base /* at PA 0x50f00000 */
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#define VIA2OFF 1 /* VIA2 addr = VIA1_addr * 0x2000 */
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#define RBVOFF 0x13 /* RBV addr = VIA1_addr * 0x13000 */
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#define VIA1 0
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extern int VIA2;
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/* VIA interface registers */
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#define vBufA 0x1e00 /* register A */
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#define vBufB 0 /* register B */
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#define vDirA 0x0600 /* data direction register */
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#define vDirB 0x0400 /* data direction register */
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#define vT1C 0x0800
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#define vT1CH 0x0a00
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#define vT1L 0x0c00
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#define vT1LH 0x0e00
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#define vT2C 0x1000
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#define vT2CH 0x1200
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#define vSR 0x1400 /* shift register */
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#define vACR 0x1600 /* aux control register */
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#define vPCR 0x1800 /* peripheral control register */
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#define vIFR 0x1a00 /* interrupt flag register */
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#define vIER 0x1c00 /* interrupt enable register */
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/* RBV interface registers */
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#define rBufB 0 /* register B */
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#define rBufA 2 /* register A */
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#define rIFR 0x3 /* interrupt flag register (writes?) */
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#define rIER 0x13 /* interrupt enable register */
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#define rMonitor 0x10 /* Monitor type */
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#define rSlotInt 0x12 /* Slot interrupt */
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/* RBV monitor type flags and masks */
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#define RBVDepthMask 0x07 /* depth in bits */
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#define RBVMonitorMask 0x38 /* Type numbers */
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#define RBVOff 0x40 /* monitor turn off */
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#define RBVMonIDNone 0x38 /* What RBV actually has for no video */
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#define RBVMonIDOff 0x0 /* What rbv_vidstatus() returns for no video */
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#define RBVMonID15BWP 0x08 /* BW portrait */
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#define RBVMonIDRGB 0x10 /* color monitor */
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#define RBVMonIDRGB15 0x28 /* 15 inch RGB */
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#define RBVMonIDBW 0x30 /* No internal video */
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#define via_reg(v, r) (*(Via1Base+(v)*0x2000+(r)))
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#define via2_reg(r) (*(Via2Base+(r)))
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#define vDirA_ADBState 0x30
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void VIA_initialize __P((void));
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int rbv_vidstatus __P((void));
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void via_shutdown __P((void));
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void via_set_modem __P((int));
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int add_nubus_intr __P((int, void (*) __P((void *, int)), void *));
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void enable_nubus_intr __P((void));
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void via1_register_irq __P((int, void (*)(void *), void *));
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void via2_register_irq __P((int, void (*)(void *), void *));
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extern void (*via1itab[7]) __P((void *));
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extern void (*via2itab[7]) __P((void *));
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