sys/platform/pc32/isa/ascreg.h

   1 /* ascreg.h - port and bit definitions for the GI-1904 interface
   2  *
   3  * Copyright (c) 1995 Gunther Schadow.  All rights reserved.
   4  * Copyright (c) 1995 Luigi Rizzo.  All rights reserved.
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions
   8  * are met:
   9  * 1. Redistributions of source code must retain the above copyright
  10  *    notice, this list of conditions and the following disclaimer.
  11  * 2. Redistributions in binary form must reproduce the above copyright
  12  *    notice, this list of conditions and the following disclaimer in the
  13  *    documentation and/or other materials provided with the distribution.
  14  * 3. All advertising materials mentioning features or use of this software
  15  *    must display the following acknowledgement:
  16  *      This product includes software developed by Gunther Schadow.
  17  *      and Luigi Rizzo
  18  * 4. The name of the author may not be used to endorse or promote products
  19  *    derived from this software without specific prior written permission.
  20  *
  21  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  22  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  23  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  24  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  25  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  26  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  27  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  28  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  29  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  30  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  31  */
  32
  33 /*
  34  * $FreeBSD: src/sys/i386/isa/ascreg.h,v 1.5 1999/08/28 00:44:37 peter Exp $
  35  * $DragonFly: src/sys/platform/pc32/isa/ascreg.h,v 1.2 2003/06/17 04:28:36 dillon Exp $
  36  */
  37
  38     /***    Registers (base=3EB): ************/
  39 #define ASC_CFG (scu->base)
  40     /*** ASC_CFG 3EB: configuration register. Write only, mirror in RAM
  41      ***   7   6   5   4   3   2   1   0
  42      ***   -   -  I_5 I_3 I10 D_3  -  D_1
  43      ***/
  44     /*** #define ASC_CNF_MASK  0x3D */ /*  was 0x5a */
  45 #define ASC_CNF_DMA1  0x01 /* was (~0x02 & ASC_CNF_MASK) */
  46 #define ASC_CNF_DMA3  0x04 /* was (~0x08 & ASC_CNF_MASK) */
  47 #define ASC_CNF_IRQ3  0x10 /* was (~0x10 & ASC_CNF_MASK) */
  48 #define ASC_CNF_IRQ5  0x20 /* was (~0x40 & ASC_CNF_MASK) */
  49 #define ASC_CNF_IRQ10 0x08 /* was (~0x40 & ASC_CNF_MASK) */
  50
  51     /*** ASC_STAT 3EC: command/status; rw, mirror in ram
  52      ***    7   6   5   4   3   2   1   0
  53      ***   BSY  -   -   -   -   -   -   -
  54      ***            [<--  Resolution -->] 13h,10h,0eh,0ch,09h, 07h, 04h, 02h
  55      ***/
  56 #define ASC_STAT        (scu->base + 1)
  57
  58 #define ASC_RDY_FLAG  0x80
  59 #define ASC_RES_MASK  0x3f
  60 #define ASC_RES_800   0x13
  61 #define ASC_RES_700   0x10
  62 #define ASC_RES_600   0x0e
  63 #define ASC_RES_500   0x0c
  64 #define ASC_RES_400   0x09 /* 0x00 */
  65 #define ASC_RES_300   0x07 /* 0x04 */
  66 #define ASC_RES_200   0x04 /* 0x20 */
  67 #define ASC_RES_100   0x02 /* 0x24 */
  68
  69     /*** ASC_CMD 3EC: command/status; rw, mirror in ram
  70      *** W:  7   6   5   4   3   2   1   0
  71      ***     .   -   -   .   .   .   .   .
  72      *** b0: 1: light on & get resolution, 0: light off
  73      *** b1: 0: load scan len (sub_16, with b4=1, b7=1)
  74      *** b2: 1/0 : dma stuff
  75      *** b3: 0/1 : dma stuff
  76      *** b4: 1   : load scan len (sub_16, with b1=0, b7=1)
  77      *** b5: ?
  78      *** b6: ?
  79      *** b7: ?   : set at beginning of sub_16
  80      ***/
  81 #define ASC_CMD (scu->base + 1)
  82
  83 #define ASC_LIGHT_ON  0x01
  84 #define ASC_SET_B2    0x04
  85 #define ASC_OPERATE     0x91    /* from linux driver... */
  86 #define ASC_STANDBY     0x05    /* from linux driver... */
  87
  88     /*** ASC_LEN_L, ASC_LEN_H 3ED, 3EE: transfer length, lsb first ***/
  89 #define ASC_LEN_L       ((scu->base)+2)
  90 #define ASC_LEN_H       ((scu->base)+3)
  91
  92     /*** 3EE ASC_PROBE (must read ASC_PROBE_VALUE) ***/
  93 #define ASC_PROBE       ((scu->base)+3)
  94 #define ASC_PROBE_VALUE 0xA5
  95
  96     /*** ASC_BOH 3EF: always write 0 at the moment, read some values ?  ***/
  97 #define ASC_BOH         ((scu->base)+4)