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Diffstat (limited to 'chips/dc503.h')
| -rw-r--r-- | chips/dc503.h | 69 |
1 files changed, 69 insertions, 0 deletions
diff --git a/chips/dc503.h b/chips/dc503.h new file mode 100644 index 0000000..e3c330c --- /dev/null +++ b/chips/dc503.h @@ -0,0 +1,69 @@ +/* + * 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: dc503.h + * Author: Alessandro Forin, Carnegie Mellon University + * Date: 9/90 + * + * Defines for the DEC DC503 Programmable Cursor + */ + +typedef struct { + volatile unsigned short pcc_cmdr; /* all regs are wo */ + volatile unsigned short pcc_xpos; + volatile unsigned short pcc_ypos; + volatile unsigned short pcc_xmin1; + volatile unsigned short pcc_xmax1; + volatile unsigned short pcc_ymin1; + volatile unsigned short pcc_ymax1; + volatile unsigned short pcc_xmin2; + volatile unsigned short pcc_xmax2; + volatile unsigned short pcc_ymin2; + volatile unsigned short pcc_ymax2; + volatile unsigned short pcc_memory; +} dc503_regmap_t; + +/* + * Command register bits + */ + +#define DC503_CMD_TEST 0x8000 /* cursor test flip-flop */ +#define DC503_CMD_HSHI 0x4000 /* Hor sync polarity */ +#define DC503_CMD_VBHI 0x2000 /* Ver blank polarity */ +#define DC503_CMD_LODSA 0x1000 /* load sprite array */ +#define DC503_CMD_FORG2 0x0800 /* force detector2 to one */ +#define DC503_CMD_ENRG2 0x0400 /* enable detector2 */ +#define DC503_CMD_FORG1 0x0200 /* force detector1 to one */ +#define DC503_CMD_ENRG1 0x0100 /* enable detector1 */ +#define DC503_CMD_XHWID 0x0080 /* hair cursor (double) width */ +#define DC503_CMD_XHCL1 0x0040 /* hair clip region */ +#define DC503_CMD_XHCLP 0x0020 /* clip hair inside region */ +#define DC503_CMD_XHAIR 0x0010 /* enable hair cursor */ +#define DC503_CMD_FOPB 0x0008 /* force curs plane B to one */ +#define DC503_CMD_ENPB 0x0004 /* enable curs plane B */ +#define DC503_CMD_FOPA 0x0002 /* force curs plane A to one */ +#define DC503_CMD_ENPA 0x0001 /* enable curs plane A */ + |