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      1 /*	$NetBSD: bt463reg.h,v 1.2 2008/04/28 20:23:49 martin 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 */
     83