sys/arch/mac68k/include/viareg.h

   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
 144 extern volatile unsigned char *Via1Base;
 145 extern 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
 153 extern 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
 202 void    via_init(void);
 203 void    via_powerdown(void);
 204 void    via_set_modem(int);
 205 int     add_nubus_intr(int, void (*)(void *), void *);
 206 void    enable_nubus_intr(void);
 207 void    via1_register_irq(int, void (*)(void *), void *);
 208 void    via2_register_irq(int, void (*)(void *), void *);
 209
 210 extern void     (*via1itab[7])(void *);
 211 extern void     (*via2itab[7])(void *);