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Diffstat (limited to 'chips/bt459.h')
| -rw-r--r-- | chips/bt459.h | 82 |
1 files changed, 82 insertions, 0 deletions
diff --git a/chips/bt459.h b/chips/bt459.h new file mode 100644 index 0000000..66012d2 --- /dev/null +++ b/chips/bt459.h @@ -0,0 +1,82 @@ +/* + * Mach Operating System + * Copyright (c) 1991,1990,1989 Carnegie Mellon University + * All Rights Reserved. + * + * Permission to use, copy, modify and distribute this software and its + * documentation is hereby granted, provided that both the copyright + * notice and this permission notice appear in all copies of the + * software, derivative works or modified versions, and any portions + * thereof, and that both notices appear in supporting documentation. + * + * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" + * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR + * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. + * + * Carnegie Mellon requests users of this software to return to + * + * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU + * School of Computer Science + * Carnegie Mellon University + * Pittsburgh PA 15213-3890 + * + * any improvements or extensions that they make and grant Carnegie Mellon + * the rights to redistribute these changes. + */ +/* + * File: bt459.h + * Author: Alessandro Forin, Carnegie Mellon University + * Date: 9/90 + * + * Defines for the bt459 Cursor/RAMDAC chip + */ + +typedef struct { + volatile unsigned char addr_lo; + volatile unsigned char addr_hi; + volatile unsigned char addr_reg; + volatile unsigned char addr_cmap; +} bt459_regmap_t; + +/* + * Additional registers addressed indirectly + */ + + /* 0000-00ff Color Map entries */ + /* 0100-010f Overlay color regs, unsupp */ +#define BT459_REG_CCOLOR_1 0x0181 /* Cursor color regs */ +#define BT459_REG_CCOLOR_2 0x0182 +#define BT459_REG_CCOLOR_3 0x0183 +#define BT459_REG_ID 0x0200 /* read-only, gives "4a" */ +#define BT459_REG_CMD0 0x0201 +#define BT459_REG_CMD1 0x0202 +#define BT459_REG_CMD2 0x0203 +#define BT459_REG_PRM 0x0204 + /* 0205 reserved */ +#define BT459_REG_PBM 0x0206 + /* 0207 reserved */ +#define BT459_REG_ORM 0x0208 +#define BT459_REG_OBM 0x0209 +#define BT459_REG_ILV 0x020a +#define BT459_REG_TEST 0x020b +#define BT459_REG_RSIG 0x020c +#define BT459_REG_GSIG 0x020d +#define BT459_REG_BSIG 0x020e + /* 020f-02ff reserved */ +#define BT459_REG_CCR 0x0300 +#define BT459_REG_CXLO 0x0301 +#define BT459_REG_CXHI 0x0302 +#define BT459_REG_CYLO 0x0303 +#define BT459_REG_CYHI 0x0304 +#define BT459_REG_WXLO 0x0305 +#define BT459_REG_WXHI 0x0306 +#define BT459_REG_WYLO 0x0307 +#define BT459_REG_WYHI 0x0308 +#define BT459_REG_WWLO 0x0309 +#define BT459_REG_WWHI 0x030a +#define BT459_REG_WHLO 0x030b +#define BT459_REG_WHHI 0x030c + /* 030d-03ff reserved */ +#define BT459_REG_CRAM_BASE 0x0400 +#define BT459_REG_CRAM_END 0x07ff + |