1/*	$NetBSD: viareg.h,v 1.12.36.1 2005/01/17 19:29:35 skrll Exp $	*/
2
3/*-
4 * Copyright (C) 1993	Allen K. Briggs, Chris P. Caputo,
5 *			Michael L. Finch, Bradley A. Grantham, and
6 *			Lawrence A. Kesteloot
7 * All rights reserved.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 * 1. Redistributions of source code must retain the above copyright
13 *    notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 *    notice, this list of conditions and the following disclaimer in the
16 *    documentation and/or other materials provided with the distribution.
17 * 3. All advertising materials mentioning features or use of this software
18 *    must display the following acknowledgement:
19 *	This product includes software developed by the Alice Group.
20 * 4. The names of the Alice Group or any of its members may not be used
21 *    to endorse or promote products derived from this software without
22 *    specific prior written permission.
23 *
24 * THIS SOFTWARE IS PROVIDED BY THE ALICE GROUP ``AS IS'' AND ANY EXPRESS OR
25 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
26 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
27 * IN NO EVENT SHALL THE ALICE GROUP BE LIABLE FOR ANY DIRECT, INDIRECT,
28 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
29 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
30 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
31 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
32 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
33 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
34 *
35 */
36/*
37
38	Prototype VIA control definitions
39
40	06/04/92,22:33:57 BG Let's see what I can do.
41
42*/
43
44
45	/* VIA1 data register A */
46#define DA1I_vSCCWrReq	0x80
47#define DA1O_vPage2	0x40
48#define DA1I_CPU_ID1	0x40
49#define DA1O_vHeadSel	0x20
50#define DA1O_vOverlay	0x10
51#define DA1O_vSync	0x08
52#define DA1O_RESERVED2	0x04
53#define DA1O_RESERVED1	0x02
54#define DA1O_RESERVED0	0x01
55
56	/* VIA1 data register B */
57#define DB1I_Par_Err	0x80
58#define DB1O_vSndEnb	0x80
59#define DB1O_Par_Enb	0x40
60#define DB1O_AuxIntEnb	0x40	/* 0 = enabled, 1 = disabled */
61#define DB1O_vFDesk2	0x20
62#define DB1O_vFDesk1	0x10
63#define DB1I_vFDBInt	0x08
64#define DB1O_rTCEnb	0x04
65#define DB1O_rTCCLK	0x02
66#define DB1O_rTCData	0x01
67#define DB1I_rTCData	0x01
68
69	/* VIA2 data register A */
70#define DA2O_v2Ram1	0x80
71#define DA2O_v2Ram0	0x40
72#define DA2I_v2IRQ0	0x40
73#define DA2I_v2IRQE	0x20
74#define DA2I_v2IRQD	0x10
75#define DA2I_v2IRQC	0x08
76#define DA2I_v2IRQB	0x04
77#define DA2I_v2IRQA	0x02
78#define DA2I_v2IRQ9	0x01
79
80	/* VIA2 data register B */
81#define DB2O_v2VBL	0x80
82#define DB2O_Par_Test	0x80
83#define DB2I_v2SNDEXT	0x40
84#define DB2I_v2TM0A	0x20
85#define DB2I_v2TM1A	0x10
86#define DB2I_vFC3	0x08
87#define DB2O_vFC3	0x08
88#define DB2O_v2PowerOff	0x04
89#define DB2O_v2BusLk	0x02
90#define DB2O_vCDis	0x01
91#define DB2O_CEnable	0x01
92
93/*
94 * VIA1 interrupts
95 */
96#define	VIA1_T1		6
97#define	VIA1_T2		5
98#define	VIA1_ADBCLK	4
99#define	VIA1_ADBDATA	3
100#define	VIA1_ADBRDY	2
101#define	VIA1_VBLNK	1
102#define	VIA1_ONESEC	0
103
104/* VIA1 interrupt bits */
105#define V1IF_IRQ	0x80
106#define V1IF_T1		(1 << VIA1_T1)
107#define V1IF_T2		(1 << VIA1_T2)
108#define V1IF_ADBCLK	(1 << VIA1_ADBCLK)
109#define V1IF_ADBDATA	(1 << VIA1_ADBDATA)
110#define V1IF_ADBRDY	(1 << VIA1_ADBRDY)
111#define V1IF_VBLNK	(1 << VIA1_VBLNK)
112#define V1IF_ONESEC	(1 << VIA1_ONESEC)
113
114/*
115 * VIA2 interrupts
116 */
117#define VIA2_T1		6
118#define VIA2_T2		5
119#define VIA2_ASC	4
120#define VIA2_SCSIIRQ	3
121#define VIA2_EXPIRQ	2
122#define VIA2_SLOTINT	1
123#define VIA2_SCSIDRQ	0
124
125/* VIA2 interrupt bits */
126#define	V2IF_IRQ	0x80
127#define	V2IF_T1		(1 << VIA2_T1)
128#define	V2IF_T2		(1 << VIA2_T2)
129#define	V2IF_ASC	(1 << VIA2_ASC)
130#define	V2IF_SCSIIRQ	(1 << VIA2_SCSIIRQ)
131#define	V2IF_EXPIRQ	(1 << VIA2_EXPIRQ)
132#define	V2IF_SLOTINT	(1 << VIA2_SLOTINT)
133#define	V2IF_SCSIDRQ	(1 << VIA2_SCSIDRQ)
134
135#define VIA1_INTS	(V1IF_T1 | V1IF_ADBRDY)
136#define VIA2_INTS	(V2IF_T1 | V2IF_ASC | V2IF_SCSIIRQ | V2IF_SLOTINT | \
137			 V2IF_SCSIDRQ)
138
139#define RBV_INTS	(V2IF_T1 | V2IF_ASC | V2IF_SCSIIRQ | V2IF_SLOTINT | \
140			 V2IF_SCSIDRQ | V1IF_ADBRDY)
141
142#define ACR_T1LATCH	0x40
143
144extern volatile unsigned char *Via1Base;
145extern volatile unsigned char *Via2Base;	/* init in VIA_Initialize */
146#define VIA1_addr	Via1Base	/* at PA 0x50f00000 */
147
148#define VIA2OFF		1		/* VIA2 addr = VIA1_addr + 0x2000 */
149#define RBVOFF		0x13		/* RBV addr = VIA1_addr + 0x26000 */
150#define OSSOFF		0xd		/* OSS addr = VIA1_addr + 0x1A000 */
151
152#define VIA1		0
153extern int VIA2;
154
155	/* VIA interface registers */
156#define vBufA		0x1e00	/* register A */
157#define vBufB		0	/* register B */
158#define vDirA		0x0600	/* data direction register */
159#define vDirB		0x0400	/* data direction register */
160#define vT1C		0x0800
161#define vT1CH		0x0a00
162#define vT1L		0x0c00
163#define vT1LH		0x0e00
164#define vT2C		0x1000
165#define vT2CH		0x1200
166#define vSR		0x1400	/* shift register */
167#define vACR		0x1600	/* aux control register */
168#define vPCR		0x1800	/* peripheral control register */
169#define vIFR		0x1a00	/* interrupt flag register */
170#define vIER		0x1c00	/* interrupt enable register */
171
172	/* RBV interface registers */
173#define rBufB		0	/* register B */
174#define rBufA		2	/* register A */
175#define rIFR		0x3	/* interrupt flag register (writes?) */
176#define rIER		0x13	/* interrupt enable register */
177#define rMonitor	0x10	/* Monitor type */
178#define rSlotInt	0x12	/* Slot interrupt */
179
180	/* RBV monitor type flags and masks */
181#define RBVDepthMask	0x07	/* Depth in bits */
182#define RBVMonitorMask	0x38	/* Type numbers */
183#define RBVOff		0x40	/* Monitor turned off */
184#define RBVMonIDBWP	0x08	/* 15 inch BW portrait */
185#define RBVMonIDRGB12	0x10	/* 12 inch color */
186#define RBVMonIDRGB15	0x28	/* 15 inch RGB */
187#define RBVMonIDStd	0x30	/* 12 inch BW or 13 inch color */
188#define RBVMonIDNone	0x38	/* No monitor connected */
189
190	/* OSS registers */
191#define OSS_IFR		0x202
192#define OSS_PENDING_IRQ	(*(volatile u_short *)(Via2Base + (OSS_IFR)))
193
194#define OSS_oRCR	0x204
195#define OSS_POWEROFF	 0x80
196
197#define via_reg(v, r) (*(Via1Base+(v)*0x2000+(r)))
198#define via2_reg(r) (*(Via2Base+(r)))
199
200#define vDirA_ADBState	0x30
201
202void	via_init(void);
203void	via_powerdown(void);
204void	via_set_modem(int);
205int	add_nubus_intr(int, void (*)(void *), void *);
206void	enable_nubus_intr(void);
207void	via1_register_irq(int, void (*)(void *), void *);
208void	via2_register_irq(int, void (*)(void *), void *);
209
210extern void	(*via1itab[7])(void *);
211extern void	(*via2itab[7])(void *);
212