sys/dev/ic/bt459reg.h

   1 /* $NetBSD: bt459reg.h,v 1.2.28.1 2005/03/04 16:41:27 skrll Exp $ */
   2
   3 /*
   4  * Mach Operating System
   5  * Copyright (c) 1991,1990,1989 Carnegie Mellon University
   6  * All Rights Reserved.
   7  *
   8  * Permission to use, copy, modify and distribute this software and its
   9  * documentation is hereby granted, provided that both the copyright
  10  * notice and this permission notice appear in all copies of the
  11  * software, derivative works or modified versions, and any portions
  12  * thereof, and that both notices appear in supporting documentation.
  13  *
  14  * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
  15  * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
  16  * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
  17  *
  18  * Carnegie Mellon requests users of this software to return to
  19  *
  20  *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
  21  *  School of Computer Science
  22  *  Carnegie Mellon University
  23  *  Pittsburgh PA 15213-3890
  24  *
  25  * any improvements or extensions that they make and grant Carnegie Mellon
  26  * the rights to redistribute these changes.
  27  */
  28
  29 /*
  30  * Register definitions for the Brooktree Bt459 135 MHz Monolithic
  31  * CMOS 256x64 Color Palette RAMDAC.
  32  */
  33
  34 /*
  35  * Directly-accessible registers.  Note the address register is
  36  * auto-incrementing.
  37  */
  38 #define BT459_REG_ADDR_LOW              0x00    /* C1,C0 == 0,0 */
  39 #define BT459_REG_ADDR_HIGH             0x01    /* C1,C0 == 0,1 */
  40 #define BT459_REG_IREG_DATA             0x02    /* C1,C0 == 1,0 */
  41 #define BT459_REG_CMAP_DATA             0x03    /* C1,C0 == 1,1 */
  42
  43 #define BT459_REG_MAX                   BT459_REG_CMAP_DATA
  44
  45 /*
  46  * All internal register access to the Bt459 is done indirectly via the
  47  * Address Register (mapped into the host bus in a device-specific
  48  * fashion).  The following register definitions are in terms of
  49  * their address register address values.
  50  */
  51
  52                                                 /* 0000-00ff colormap entries */
  53
  54 #define BT459_IREG_CCOLOR_1             0x0181  /* Cursor color regs */
  55 #define BT459_IREG_CCOLOR_2             0x0182
  56 #define BT459_IREG_CCOLOR_3             0x0183
  57 #define BT459_IREG_ID                   0x0200  /* read-only, gives "4a" */
  58 #define BT459_IREG_COMMAND_0            0x0201
  59 #define BT459_IREG_COMMAND_1            0x0202
  60 #define BT459_IREG_COMMAND_2            0x0203
  61 #define BT459_IREG_PRM                  0x0204
  62                                                 /* 0205 reserved */
  63 #define BT459_IREG_PBM                  0x0206
  64                                                 /* 0207 reserved */
  65 #define BT459_IREG_ORM                  0x0208
  66 #define BT459_IREG_OBM                  0x0209
  67 #define BT459_IREG_ILV                  0x020a
  68 #define BT459_IREG_TEST                 0x020b
  69 #define BT459_IREG_RSIG                 0x020c
  70 #define BT459_IREG_GSIG                 0x020d
  71 #define BT459_IREG_BSIG                 0x020e
  72                                                 /* 020f-02ff reserved */
  73 #define BT459_IREG_CCR                  0x0300
  74 #define BT459_IREG_CURSOR_X_LOW         0x0301
  75 #define BT459_IREG_CURSOR_X_HIGH        0x0302
  76 #define BT459_IREG_CURSOR_Y_LOW         0x0303
  77 #define BT459_IREG_CURSOR_Y_HIGH        0x0304
  78 #define BT459_IREG_WXLO                 0x0305
  79 #define BT459_IREG_WXHI                 0x0306
  80 #define BT459_IREG_WYLO                 0x0307
  81 #define BT459_IREG_WYHI                 0x0308
  82 #define BT459_IREG_WWLO                 0x0309
  83 #define BT459_IREG_WWHI                 0x030a
  84 #define BT459_IREG_WHLO                 0x030b
  85 #define BT459_IREG_WHHI                 0x030c
  86                                                 /* 030d-03ff reserved */
  87 #define BT459_IREG_CRAM_BASE            0x0400