88 lines
3.0 KiB
C
88 lines
3.0 KiB
C
/* $NetBSD: bt459reg.h,v 1.2 1999/12/15 15:09:36 ad Exp $ */
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/*
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* Mach Operating System
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* Copyright (c) 1991,1990,1989 Carnegie Mellon University
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* All Rights Reserved.
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*
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* Permission to use, copy, modify and distribute this software and its
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* documentation is hereby granted, provided that both the copyright
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* notice and this permission notice appear in all copies of the
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* software, derivative works or modified versions, and any portions
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* thereof, and that both notices appear in supporting documentation.
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*
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* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
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* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
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* ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
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*
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* Carnegie Mellon requests users of this software to return to
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*
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* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
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* School of Computer Science
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* Carnegie Mellon University
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* Pittsburgh PA 15213-3890
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*
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* any improvements or extensions that they make and grant Carnegie Mellon
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* the rights to redistribute these changes.
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*/
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/*
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* Register definitions for the Brooktree Bt459 135 MHz Monolithic
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* CMOS 256x64 Color Palette RAMDAC.
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*/
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/*
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* Directly-accessible registers. Note the address register is
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* auto-incrementing.
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*/
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#define BT459_REG_ADDR_LOW 0x00 /* C1,C0 == 0,0 */
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#define BT459_REG_ADDR_HIGH 0x01 /* C1,C0 == 0,1 */
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#define BT459_REG_IREG_DATA 0x02 /* C1,C0 == 1,0 */
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#define BT459_REG_CMAP_DATA 0x03 /* C1,C0 == 1,1 */
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#define BT459_REG_MAX BT459_REG_CMAP_DATA
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/*
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* All internal register access to the Bt459 is done indirectly via the
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* Address Register (mapped into the host bus in a device-specific
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* fashion). The following register definitions are in terms of
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* their address register address values.
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*/
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/* 0000-00ff colormap entries */
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#define BT459_IREG_CCOLOR_1 0x0181 /* Cursor color regs */
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#define BT459_IREG_CCOLOR_2 0x0182
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#define BT459_IREG_CCOLOR_3 0x0183
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#define BT459_IREG_ID 0x0200 /* read-only, gives "4a" */
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#define BT459_IREG_COMMAND_0 0x0201
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#define BT459_IREG_COMMAND_1 0x0202
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#define BT459_IREG_COMMAND_2 0x0203
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#define BT459_IREG_PRM 0x0204
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/* 0205 reserved */
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#define BT459_IREG_PBM 0x0206
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/* 0207 reserved */
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#define BT459_IREG_ORM 0x0208
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#define BT459_IREG_OBM 0x0209
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#define BT459_IREG_ILV 0x020a
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#define BT459_IREG_TEST 0x020b
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#define BT459_IREG_RSIG 0x020c
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#define BT459_IREG_GSIG 0x020d
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#define BT459_IREG_BSIG 0x020e
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/* 020f-02ff reserved */
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#define BT459_IREG_CCR 0x0300
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#define BT459_IREG_CURSOR_X_LOW 0x0301
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#define BT459_IREG_CURSOR_X_HIGH 0x0302
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#define BT459_IREG_CURSOR_Y_LOW 0x0303
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#define BT459_IREG_CURSOR_Y_HIGH 0x0304
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#define BT459_IREG_WXLO 0x0305
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#define BT459_IREG_WXHI 0x0306
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#define BT459_IREG_WYLO 0x0307
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#define BT459_IREG_WYHI 0x0308
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#define BT459_IREG_WWLO 0x0309
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#define BT459_IREG_WWHI 0x030a
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#define BT459_IREG_WHLO 0x030b
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#define BT459_IREG_WHHI 0x030c
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/* 030d-03ff reserved */
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#define BT459_IREG_CRAM_BASE 0x0400
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