sys/dev/ic/bt463reg.h

   1 /*      $NetBSD: bt463reg.h,v 1.1 1998/08/18 07:43:09 thorpej Exp $     */
   2
   3 /*-
   4  * Copyright (c) 1998 The NetBSD Foundation, Inc.
   5  * All rights reserved.
   6  *
   7  * This code is derived from software contributed to The NetBSD Foundation
   8  * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
   9  * NASA Ames Research Center.
  10  *
  11  * Redistribution and use in source and binary forms, with or without
  12  * modification, are permitted provided that the following conditions
  13  * are met:
  14  * 1. Redistributions of source code must retain the above copyright
  15  *    notice, this list of conditions and the following disclaimer.
  16  * 2. Redistributions in binary form must reproduce the above copyright
  17  *    notice, this list of conditions and the following disclaimer in the
  18  *    documentation and/or other materials provided with the distribution.
  19  *
  20  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
  21  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  22  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  23  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
  24  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  25  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  26  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  27  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  28  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  29  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  30  * POSSIBILITY OF SUCH DAMAGE.
  31  */
  32
  33 /*
  34  * Register definitions for the Brooktree Bt463 135MHz Monolithic
  35  * CMOS TrueVu RAMDAC.
  36  */
  37
  38 /*
  39  * Directly-accessible registers.  Note the address register is
  40  * auto-incrementing.
  41  */
  42 #define BT463_REG_ADDR_LOW              0x00    /* C1,C0 == 0,0 */
  43 #define BT463_REG_ADDR_HIGH             0x01    /* C1,C0 == 0,1 */
  44 #define BT463_REG_IREG_DATA             0x02    /* C1,C0 == 1,0 */
  45 #define BT463_REG_CMAP_DATA             0x03    /* C1,C0 == 1,1 */
  46
  47 #define BT463_REG_MAX                   BT463_REG_CMAP_DATA
  48
  49 /*
  50  * All internal register access to the Bt463 is done indirectly via the
  51  * Address Register (mapped into the host bus in a device-specific
  52  * fashion).  The following register definitions are in terms of
  53  * their address register address values.
  54  */
  55
  56 /* C1,C0 must be 1,0 */
  57 #define BT463_IREG_CURSOR_COLOR_0       0x0100  /* 3 r/w cycles */
  58 #define BT463_IREG_CURSOR_COLOR_1       0x0101  /* 3 r/w cycles */
  59 #define BT463_IREG_ID                   0x0200
  60 #define BT463_IREG_COMMAND_0            0x0201
  61 #define BT463_IREG_COMMAND_1            0x0202
  62 #define BT463_IREG_COMMAND_2            0x0203
  63 #define BT463_IREG_READ_MASK_P0_P7      0x0205
  64 #define BT463_IREG_READ_MASK_P8_P15     0x0206
  65 #define BT463_IREG_READ_MASK_P16_P23    0x0207
  66 #define BT463_IREG_READ_MASK_P24_P27    0x0208
  67 #define BT463_IREG_BLINK_MASK_P0_P7     0x0209
  68 #define BT463_IREG_BLINK_MASK_P8_P15    0x020a
  69 #define BT463_IREG_BLINK_MASK_P16_P23   0x020b
  70 #define BT463_IREG_BLINK_MASK_P24_P27   0x020c
  71 #define BT463_IREG_TEST                 0x020d
  72 #define BT463_IREG_INPUT_SIG            0x020e  /* 2 of 3 r/w cycles */
  73 #define BT463_IREG_OUTPUT_SIG           0x020f  /* 3 r/w cycles */
  74 #define BT463_IREG_REVISION             0x0220
  75 #define BT463_IREG_WINDOW_TYPE_TABLE    0x0300  /* 3 r/w cycles */
  76
  77 #define BT463_NWTYPE_ENTRIES            0x10    /* 16 window type entries */
  78
  79 /* C1,C0 must be 1,1 */
  80 #define BT463_IREG_CPALETTE_RAM         0x0000  /* 3 r/w cycles */
  81
  82 #define BT463_NCMAP_ENTRIES             0x210   /* 528 CMAP entries */