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/* $OpenBSD: viareg.h,v 1.14 2005/01/11 21:07:19 martin Exp $ */
/* $NetBSD: viareg.h,v 1.6 1997/02/28 07:41:41 scottr Exp $ */
/*-
* Copyright (C) 1993 Allen K. Briggs, Chris P. Caputo,
* Michael L. Finch, Bradley A. Grantham, and
* Lawrence A. Kesteloot
* 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 the Alice Group.
* 4. The names of the Alice Group or any of its members may not be used
* to endorse or promote products derived from this software without
* specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE ALICE GROUP ``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 ALICE GROUP 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.
*
*/
/*
* Prototype VIA control definitions
*/
#ifndef _MAC68K_VIAREG_H_
#define _MAC68K_VIAREG_H_
/* VIA1 data register A */
#define DA1I_vSCCWrReq 0x80
#define DA1O_vPage2 0x40
#define DA1I_CPU_ID1 0x40
#define DA1O_vHeadSel 0x20
#define DA1O_vOverlay 0x10
#define DA1O_vSync 0x08
#define DA1O_RESERVED2 0x04
#define DA1O_RESERVED1 0x02
#define DA1O_RESERVED0 0x01
/* VIA1 data register B */
#define DB1I_Par_Err 0x80
#define DB1O_vSndEnb 0x80
#define DB1O_Par_Enb 0x40
#define DB1O_vFDesk2 0x20
#define DB1O_vFDesk1 0x10
#define DB1I_vFDBInt 0x08
#define DB1O_rTCEnb 0x04
#define DB1O_rTCCLK 0x02
#define DB1O_rTCData 0x01
#define DB1I_rTCData 0x01
/* VIA2 data register A */
#define DA2O_v2Ram1 0x80
#define DA2O_v2Ram0 0x40
#define DA2I_v2IRQ0 0x40
#define DA2I_v2IRQE 0x20
#define DA2I_v2IRQD 0x10
#define DA2I_v2IRQC 0x08
#define DA2I_v2IRQB 0x04
#define DA2I_v2IRQA 0x02
#define DA2I_v2IRQ9 0x01
/* VIA2 data register B */
#define DB2O_v2VBL 0x80
#define DB2O_Par_Test 0x80
#define DB2I_v2SNDEXT 0x40
#define DB2I_v2TM0A 0x20
#define DB2I_v2TM1A 0x10
#define DB2I_vFC3 0x08
#define DB2O_vFC3 0x08
#define DB2O_v2PowerOff 0x04
#define DB2O_v2BusLk 0x02
#define DB2O_vCDis 0x01
#define DB2O_CEnable 0x01
/*
* VIA1 interrupts
*/
#define VIA1_T1 6
#define VIA1_T2 5
#define VIA1_ADBCLK 4
#define VIA1_ADBDATA 3
#define VIA1_ADBRDY 2
#define VIA1_VBLNK 1
#define VIA1_ONESEC 0
/* VIA1 interrupt bits */
#define V1IF_IRQ 0x80
#define V1IF_T1 (1 << VIA1_T1)
#define V1IF_T2 (1 << VIA1_T2)
#define V1IF_ADBCLK (1 << VIA1_ADBCLK)
#define V1IF_ADBDATA (1 << VIA1_ADBDATA)
#define V1IF_ADBRDY (1 << VIA1_ADBRDY)
#define V1IF_VBLNK (1 << VIA1_VBLNK)
#define V1IF_ONESEC (1 << VIA1_ONESEC)
/*
* VIA2 interrupts
*/
#define VIA2_T1 6
#define VIA2_T2 5
#define VIA2_ASC 4
#define VIA2_SCSIIRQ 3
#define VIA2_EXPIRQ 2
#define VIA2_SLOTINT 1
#define VIA2_SCSIDRQ 0
/* VIA2 interrupt bits */
#define V2IF_IRQ 0x80
#define V2IF_T1 (1 << VIA2_T1)
#define V2IF_T2 (1 << VIA2_T2)
#define V2IF_ASC (1 << VIA2_ASC)
#define V2IF_SCSIIRQ (1 << VIA2_SCSIIRQ)
#define V2IF_EXPIRQ (1 << VIA2_EXPIRQ)
#define V2IF_SLOTINT (1 << VIA2_SLOTINT)
#define V2IF_SCSIDRQ (1 << VIA2_SCSIDRQ)
#define VIA1_INTS (V1IF_T1 | V1IF_ADBRDY)
#define VIA2_INTS (V2IF_T1 | V2IF_ASC | V2IF_SCSIIRQ | V2IF_SLOTINT | \
V2IF_SCSIDRQ)
#define RBV_INTS (V2IF_T1 | V2IF_ASC | V2IF_SCSIIRQ | V2IF_SLOTINT | \
V2IF_SCSIDRQ | V1IF_ADBRDY)
#define ACR_T1LATCH 0x40
extern volatile unsigned char *Via1Base;
extern volatile unsigned char *Via2Base; /* init in VIA_Initialize */
#define VIA1_addr Via1Base /* at PA 0x50f00000 */
#define VIA2OFF 1 /* VIA2 addr = VIA1_addr * 0x2000 */
#define RBVOFF 0x13 /* RBV addr = VIA1_addr * 0x13000 */
#define VIA1 0
extern int VIA2;
/* VIA interface registers */
#define vBufA 0x1e00 /* register A */
#define vBufB 0 /* register B */
#define vDirA 0x0600 /* data direction register */
#define vDirB 0x0400 /* data direction register */
#define vT1C 0x0800
#define vT1CH 0x0a00
#define vT1L 0x0c00
#define vT1LH 0x0e00
#define vT2C 0x1000
#define vT2CH 0x1200
#define vSR 0x1400 /* shift register */
#define vACR 0x1600 /* aux control register */
#define vPCR 0x1800 /* peripheral control register */
#define vIFR 0x1a00 /* interrupt flag register */
#define vIER 0x1c00 /* interrupt enable register */
/* RBV interface registers */
#define rBufB 0 /* register B */
#define rBufA 2 /* register A */
#define rIFR 0x3 /* interrupt flag register (writes?) */
#define rIER 0x13 /* interrupt enable register */
#define rMonitor 0x10 /* Monitor type */
#define rSlotInt 0x12 /* Slot interrupt */
/* RBV monitor type flags and masks */
#define RBVDepthMask 0x07 /* depth in bits */
#define RBVMonitorMask 0x38 /* Type numbers */
#define RBVOff 0x40 /* monitor turn off */
#define RBVMonIDNone 0x38 /* What RBV actually has for no video */
#define RBVMonIDOff 0x0 /* What rbv_vidstatus() returns for no video */
#define RBVMonID15BWP 0x08 /* BW portrait */
#define RBVMonIDRGB 0x10 /* color monitor */
#define RBVMonIDRGB15 0x28 /* 15 inch RGB */
#define RBVMonIDBW 0x30 /* No internal video */
#define via_reg(v, r) (*(Via1Base+(v)*0x2000+(r)))
#define via2_reg(r) (*(Via2Base+(r)))
#define vDirA_ADBState 0x30
#ifdef _KERNEL
/* VIA2 interrupts may be shared */
struct via2hand {
SLIST_ENTRY(via2hand) v2h_link;
struct intrhand v2h_ih;
#define vh_fn v2h_ih.ih_fn
#define vh_arg v2h_ih.ih_arg
#define vh_ipl v2h_ih.ih_ipl
#define vh_count v2h_ih.ih_count
};
typedef SLIST_HEAD(, via2hand) via2hand_t;
void via_init(void);
int rbv_vidstatus(void);
void via_powerdown(void);
void via_set_modem(int);
void add_nubus_intr(int, int (*)(void *), void *, const char *);
void enable_nubus_intr(void);
void via1_register_irq(int, int (*)(void *), void *, const char *);
int via2_register_irq(struct via2hand *, const char *);
#endif /* _KERNEL */
#endif /* _MAC68K_VIAREG_H_ */
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