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Diffstat (limited to 'chips/dc503.c')
| -rw-r--r-- | chips/dc503.c | 189 |
1 files changed, 0 insertions, 189 deletions
diff --git a/chips/dc503.c b/chips/dc503.c deleted file mode 100644 index 8bfab50..0000000 --- a/chips/dc503.c +++ /dev/null @@ -1,189 +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: dc503.h - * Author: Alessandro Forin, Carnegie Mellon University - * Date: 9/90 - * - * Routines for the DEC DC503 Programmable Cursor Chip - */ -#include <platforms.h> - -#include <chips/pm_defs.h> -#include <chips/dc503.h> - - -#if defined(DECSTATION) || defined(VAXSTATION) - -typedef struct { - volatile unsigned short pcc_cmdr; /* all regs are wo */ - short pad0; - volatile unsigned short pcc_xpos; - short pad1; - volatile unsigned short pcc_ypos; - short pad2; - volatile unsigned short pcc_xmin1; - short pad3; - volatile unsigned short pcc_xmax1; - short pad4; - volatile unsigned short pcc_ymin1; - short pad5; - volatile unsigned short pcc_ymax1; - short pad6[9]; - volatile unsigned short pcc_xmin2; - short pad7; - volatile unsigned short pcc_xmax2; - short pad8; - volatile unsigned short pcc_ymin2; - short pad9; - volatile unsigned short pcc_ymax2; - short pad10; - volatile unsigned short pcc_memory; - short pad11; -} dc503_padded_regmap_t; - -#else - -typedef dc503_regmap_t dc503_padded_regmap_t; - -#endif - -#ifdef VAXSTATION -#define X_CSHIFT 216 -#define Y_CSHIFT 34 -#define wbflush() -#define PCC_STATE (DC503_CMD_ENPA | DC503_CMD_ENPB | DC503_CMD_HSHI) -#endif /*VAXSTATION*/ - -/* defaults, for the innocents */ - -#ifndef X_CSHIFT -#define X_CSHIFT 212 -#define Y_CSHIFT 34 -#define PCC_STATE (DC503_CMD_ENPA | DC503_CMD_ENPB) -#endif - -/* - * Cursor - */ -dc503_pos_cursor( regs, x, y) - dc503_padded_regmap_t *regs; -{ - regs->pcc_xpos = x + X_CSHIFT; - regs->pcc_ypos = y + Y_CSHIFT; - wbflush(); -} - -dc503_load_cursor( pm, cursor) - pm_softc_t *pm; - unsigned short *cursor; -{ - dc503_padded_regmap_t *regs; - register int i; - - regs = (dc503_padded_regmap_t*)pm->cursor_registers; - - pm->cursor_state |= DC503_CMD_LODSA; - regs->pcc_cmdr = pm->cursor_state; - wbflush(); - for (i = 0; i < 32; i++) { - regs->pcc_memory = *cursor++; - wbflush(); - } - pm->cursor_state &= ~DC503_CMD_LODSA; - regs->pcc_cmdr = pm->cursor_state; -} - - -unsigned short dc503_default_cursor[16+16] = { -/* Plane A */ - 0x00ff, 0x00ff, 0x00ff, 0x00ff, 0x00ff, 0x00ff, 0x00ff, 0x00ff, - 0x00ff, 0x00ff, 0x00ff, 0x00ff, 0x00ff, 0x00ff, 0x00ff, 0x00ff, -/* Plane B */ - 0x00ff, 0x00ff, 0x00ff, 0x00ff, 0x00ff, 0x00ff, 0x00ff, 0x00ff, - 0x00ff, 0x00ff, 0x00ff, 0x00ff, 0x00ff, 0x00ff, 0x00ff, 0x00ff -}; - -/* - * Vert retrace interrupt - */ -dc503_vretrace( pm, on) - pm_softc_t *pm; -{ - if (on) - pm->cursor_state |= DC503_CMD_ENRG2; - else - pm->cursor_state &= ~DC503_CMD_ENRG2; - ((dc503_padded_regmap_t*)pm->cursor_registers)->pcc_cmdr = pm->cursor_state; -} - -/* - * Video on/off - */ -dc503_video_on( pm, up) - pm_softc_t *pm; -{ - pm->cursor_state = DC503_CMD_ENPA | (pm->cursor_state & ~DC503_CMD_FOPB); - ((dc503_padded_regmap_t*)pm->cursor_registers)->pcc_cmdr = pm->cursor_state; -} - -dc503_video_off( pm, up) - pm_softc_t *pm; -{ - pm->cursor_state = DC503_CMD_FOPB | (pm->cursor_state & ~DC503_CMD_ENPA); - ((dc503_padded_regmap_t*)pm->cursor_registers)->pcc_cmdr = pm->cursor_state; -} - - -/* - * Initialization - */ -dc503_init( pm ) - pm_softc_t *pm; -{ - dc503_padded_regmap_t *regs; - - regs = (dc503_padded_regmap_t*)pm->cursor_registers; - - dc503_load_cursor( pm, dc503_default_cursor); - dc503_pos_cursor( regs, 0, 0); /* XXX off screen */ - - regs->pcc_xmin1 = 0; /* test only */ - regs->pcc_xmax1 = 0; - regs->pcc_ymin1 = 0; - regs->pcc_ymax1 = 0; - - regs->pcc_xmin2 = 212; /* vert retrace detector */ - regs->pcc_xmax2 = 212+1023; - regs->pcc_ymin2 = 34+863; - regs->pcc_ymax2 = 34+863; - -#if 0 - regs->pcc_cmdr = DC503_CMD_FOPB | DC503_CMD_VBHI;/* reset */ -#endif - pm->cursor_state = PCC_STATE; - regs->pcc_cmdr = pm->cursor_state; -} |