1 /* $NetBSD: bt459reg.h,v 1.4 2005/12/11 12:21:26 christos 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 88