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-rw-r--r--chips/bt431.c239
1 files changed, 0 insertions, 239 deletions
diff --git a/chips/bt431.c b/chips/bt431.c
deleted file mode 100644
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--- a/chips/bt431.c
+++ /dev/null
@@ -1,239 +0,0 @@
-/*
- * 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: bt431.c
- * Author: Alessandro Forin, Carnegie Mellon University
- * Date: 8/91
- *
- * Routines for the bt431 Cursor
- */
-
-#include <platforms.h>
-
-#include <chips/bt431.h>
-#include <chips/screen.h>
-
-#ifdef DECSTATION
-/*
- * This configuration uses two twin 431s
- */
-#define set_value(x) (((x)<<8)|((x)&0xff))
-#define get_value(x) ((x)&0xff)
-
-typedef struct {
- volatile unsigned short addr_lo;
- short pad0;
- volatile unsigned short addr_hi;
- short pad1;
- volatile unsigned short addr_cmap;
- short pad2;
- volatile unsigned short addr_reg;
- short pad3;
-} bt431_padded_regmap_t;
-
-#else /*DECSTATION*/
-
-#define set_value(x) x
-#define get_value(x) x
-typedef bt431_regmap_t bt431_padded_regmap_t;
-#define wbflush()
-
-#endif /*DECSTATION*/
-
-/*
- * Generic register access
- */
-void
-bt431_select_reg( regs, regno)
- bt431_padded_regmap_t *regs;
-{
- regs->addr_lo = set_value(regno&0xff);
- regs->addr_hi = set_value((regno >> 8) & 0xff);
- wbflush();
-}
-
-void
-bt431_write_reg( regs, regno, val)
- bt431_padded_regmap_t *regs;
-{
- bt431_select_reg( regs, regno );
- regs->addr_reg = set_value(val);
- wbflush();
-}
-
-unsigned char
-bt431_read_reg( regs, regno)
- bt431_padded_regmap_t *regs;
-{
- bt431_select_reg( regs, regno );
- return get_value(regs->addr_reg);
-}
-
-/* when using autoincrement */
-#define bt431_write_reg_autoi( regs, regno, val) \
- { \
- (regs)->addr_reg = set_value(val); \
- wbflush(); \
- }
-#define bt431_read_reg_autoi( regs, regno) \
- get_value(((regs)->addr_reg))
-
-#define bt431_write_cmap_autoi( regs, regno, val) \
- { \
- (regs)->addr_cmap = (val); \
- wbflush(); \
- }
-#define bt431_read_cmap_autoi( regs, regno) \
- ((regs)->addr_cmap)
-
-
-/*
- * Cursor ops
- */
-bt431_cursor_on(regs)
- bt431_padded_regmap_t *regs;
-{
- bt431_write_reg( regs, BT431_REG_CMD,
- BT431_CMD_CURS_ENABLE|BT431_CMD_OR_CURSORS|
- BT431_CMD_4_1_MUX|BT431_CMD_THICK_1);
-}
-
-bt431_cursor_off(regs)
- bt431_padded_regmap_t *regs;
-{
- bt431_write_reg( regs, BT431_REG_CMD, BT431_CMD_4_1_MUX);
-}
-
-bt431_pos_cursor(regs,x,y)
- bt431_padded_regmap_t *regs;
- register int x,y;
-{
-#define lo(v) ((v)&0xff)
-#define hi(v) (((v)&0xf00)>>8)
-
- /*
- * Cx = x + D + H - P
- * P = 37 if 1:1, 52 if 4:1, 57 if 5:1
- * D = pixel skew between outdata and external data
- * H = pixels between HSYNCH falling and active video
- *
- * Cy = y + V - 32
- * V = scanlines between HSYNCH falling, two or more
- * clocks after VSYNCH falling, and active video
- */
-
- bt431_write_reg( regs, BT431_REG_CXLO, lo(x + 360));
- /* use autoincr feature */
- bt431_write_reg_autoi( regs, BT431_REG_CXHI, hi(x + 360));
- bt431_write_reg_autoi( regs, BT431_REG_CYLO, lo(y + 36));
- bt431_write_reg_autoi( regs, BT431_REG_CYHI, hi(y + 36));
-}
-
-
-bt431_cursor_sprite( regs, cursor)
- bt431_padded_regmap_t *regs;
- register unsigned short *cursor;
-{
- register int i;
-
- bt431_select_reg( regs, BT431_REG_CRAM_BASE+0);
- for (i = 0; i < 512; i++)
- bt431_write_cmap_autoi( regs, BT431_REG_CRAM_BASE+i, *cursor++);
-}
-
-#if 1
-bt431_print_cursor(regs)
- bt431_padded_regmap_t *regs;
-{
- unsigned short curs[512];
- register int i;
-
- bt431_select_reg( regs, BT431_REG_CRAM_BASE+0);
- for (i = 0; i < 512; i++) {
- curs[i] = bt431_read_cmap_autoi( regs, BT431_REG_CRAM_BASE+i);
- }
- for (i = 0; i < 512; i += 16)
- printf("%x %x %x %x %x %x %x %x %x %x %x %x %x %x %x %x\n",
- curs[i], curs[i+1], curs[i+2], curs[i+3],
- curs[i+4], curs[i+5], curs[i+6], curs[i+7],
- curs[i+8], curs[i+9], curs[i+10], curs[i+11],
- curs[i+12], curs[i+13], curs[i+14], curs[i+15]);
-}
-
-#endif
-
-/*
- * Initialization
- */
-unsigned /*char*/short bt431_default_cursor[64*8] = {
- 0xffff, 0, 0, 0, 0, 0, 0, 0,
- 0xffff, 0, 0, 0, 0, 0, 0, 0,
- 0xffff, 0, 0, 0, 0, 0, 0, 0,
- 0xffff, 0, 0, 0, 0, 0, 0, 0,
- 0xffff, 0, 0, 0, 0, 0, 0, 0,
- 0xffff, 0, 0, 0, 0, 0, 0, 0,
- 0xffff, 0, 0, 0, 0, 0, 0, 0,
- 0xffff, 0, 0, 0, 0, 0, 0, 0,
- 0xffff, 0, 0, 0, 0, 0, 0, 0,
- 0xffff, 0, 0, 0, 0, 0, 0, 0,
- 0xffff, 0, 0, 0, 0, 0, 0, 0,
- 0xffff, 0, 0, 0, 0, 0, 0, 0,
- 0xffff, 0, 0, 0, 0, 0, 0, 0,
- 0xffff, 0, 0, 0, 0, 0, 0, 0,
- 0xffff, 0, 0, 0, 0, 0, 0, 0,
- 0xffff, 0, 0, 0, 0, 0, 0, 0,
- 0,
-};
-
-bt431_init(regs)
- bt431_padded_regmap_t *regs;
-{
- register int i;
-
- /* use 4:1 input mux */
- bt431_write_reg( regs, BT431_REG_CMD,
- BT431_CMD_CURS_ENABLE|BT431_CMD_OR_CURSORS|
- BT431_CMD_4_1_MUX|BT431_CMD_THICK_1);
-
- /* home cursor */
- bt431_write_reg_autoi( regs, BT431_REG_CXLO, 0x00);
- bt431_write_reg_autoi( regs, BT431_REG_CXHI, 0x00);
- bt431_write_reg_autoi( regs, BT431_REG_CYLO, 0x00);
- bt431_write_reg_autoi( regs, BT431_REG_CYHI, 0x00);
-
- /* no crosshair window */
- bt431_write_reg_autoi( regs, BT431_REG_WXLO, 0x00);
- bt431_write_reg_autoi( regs, BT431_REG_WXHI, 0x00);
- bt431_write_reg_autoi( regs, BT431_REG_WYLO, 0x00);
- bt431_write_reg_autoi( regs, BT431_REG_WYHI, 0x00);
- bt431_write_reg_autoi( regs, BT431_REG_WWLO, 0x00);
- bt431_write_reg_autoi( regs, BT431_REG_WWHI, 0x00);
- bt431_write_reg_autoi( regs, BT431_REG_WHLO, 0x00);
- bt431_write_reg_autoi( regs, BT431_REG_WHHI, 0x00);
-
- /* load default cursor */
- bt431_cursor_sprite( regs, bt431_default_cursor);
-}
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