dbdaf91650
arguments which allows to find approximations for characters which are not present in a font
1045 lines
26 KiB
C
1045 lines
26 KiB
C
/* $NetBSD: vga.c,v 1.13 1999/02/12 11:25:24 drochner Exp $ */
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/*
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* Copyright (c) 1995, 1996 Carnegie-Mellon University.
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* All rights reserved.
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*
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* Author: Chris G. Demetriou
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*
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* Permission to use, copy, modify and distribute this software and
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* its documentation is hereby granted, provided that both the copyright
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* notice and this permission notice appear in all copies of the
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* software, derivative works or modified versions, and any portions
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* thereof, and that both notices appear in supporting documentation.
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*
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* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
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* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
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* FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
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*
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* Carnegie Mellon requests users of this software to return to
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*
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* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
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* School of Computer Science
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* Carnegie Mellon University
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* Pittsburgh PA 15213-3890
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*
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* any improvements or extensions that they make and grant Carnegie the
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* rights to redistribute these changes.
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*/
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/kernel.h>
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#include <sys/device.h>
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#include <sys/malloc.h>
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#include <sys/queue.h>
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#include <machine/bus.h>
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#include <dev/isa/isavar.h>
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#include <dev/isa/isareg.h>
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#include <dev/ic/mc6845reg.h>
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#include <dev/ic/pcdisplayvar.h>
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#include <dev/ic/vgareg.h>
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#include <dev/ic/vgavar.h>
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#include <dev/wscons/wsdisplayvar.h>
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#include <dev/wscons/wsconsio.h>
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#include <dev/ic/pcdisplay.h>
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static struct vgafont {
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char name[16];
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int height;
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int encoding;
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#ifdef notyet
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int firstchar, numchars;
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#endif
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int slot;
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} vga_builtinfont = {
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"builtin",
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16,
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WSDISPLAY_FONTENC_IBM,
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#ifdef notyet
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0, 256,
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#endif
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0
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};
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struct vgascreen {
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struct pcdisplayscreen pcs;
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LIST_ENTRY(vgascreen) next;
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struct vga_config *cfg;
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/* videostate */
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struct vgafont *fontset1, *fontset2;
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/* font data */
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/* palette */
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int mindispoffset, maxdispoffset;
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};
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struct vga_config {
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struct vga_handle hdl;
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int nscreens;
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LIST_HEAD(, vgascreen) screens;
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struct vgascreen *active; /* current display */
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const struct wsscreen_descr *currenttype;
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int currentfontset1, currentfontset2;
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int vc_biosmapped;
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bus_space_tag_t vc_biostag;
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bus_space_handle_t vc_bioshdl;
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struct vgafont *vc_fonts[8];
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};
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static int vgaconsole, vga_console_type, vga_console_attached;
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static struct vgascreen vga_console_screen;
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static struct vga_config vga_console_vc;
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int vga_selectfont __P((struct vga_config *, struct vgascreen *,
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char *, char *));
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void vga_init_screen __P((struct vga_config *, struct vgascreen *,
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const struct wsscreen_descr *,
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int, long *));
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void vga_init __P((struct vga_config *, bus_space_tag_t,
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bus_space_tag_t));
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static void vga_setfont __P((struct vga_config *, struct vgascreen *));
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static int vga_mapchar __P((void *, int, unsigned int *));
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static int vga_alloc_attr __P((void *, int, int, int, long *));
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void vga_copyrows __P((void *, int, int, int));
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const struct wsdisplay_emulops vga_emulops = {
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pcdisplay_cursor,
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vga_mapchar,
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pcdisplay_putchar,
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pcdisplay_copycols,
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pcdisplay_erasecols,
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vga_copyrows,
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pcdisplay_eraserows,
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vga_alloc_attr
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};
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/*
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* translate WS(=ANSI) color codes to standard pc ones
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*/
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static unsigned char fgansitopc[] = {
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#ifdef __alpha__
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/*
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* XXX DEC HAS SWITCHED THE CODES FOR BLUE AND RED!!!
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* XXX We should probably not bother with this
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* XXX (reinitialize the palette registers).
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*/
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FG_BLACK, FG_BLUE, FG_GREEN, FG_CYAN, FG_RED,
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FG_MAGENTA, FG_BROWN, FG_LIGHTGREY
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#else
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FG_BLACK, FG_RED, FG_GREEN, FG_BROWN, FG_BLUE,
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FG_MAGENTA, FG_CYAN, FG_LIGHTGREY
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#endif
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}, bgansitopc[] = {
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#ifdef __alpha__
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BG_BLACK, BG_BLUE, BG_GREEN, BG_CYAN, BG_RED,
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BG_MAGENTA, BG_BROWN, BG_LIGHTGREY
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#else
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BG_BLACK, BG_RED, BG_GREEN, BG_BROWN, BG_BLUE,
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BG_MAGENTA, BG_CYAN, BG_LIGHTGREY
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#endif
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};
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const struct wsscreen_descr vga_stdscreen = {
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"80x25", 80, 25,
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&vga_emulops,
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8, 16,
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WSSCREEN_WSCOLORS | WSSCREEN_HILIT | WSSCREEN_BLINK
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}, vga_stdscreen_mono = {
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"80x25", 80, 25,
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&vga_emulops,
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8, 16,
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WSSCREEN_HILIT | WSSCREEN_UNDERLINE | WSSCREEN_BLINK | WSSCREEN_REVERSE
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}, vga_stdscreen_bf = {
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"80x25bf", 80, 25,
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&vga_emulops,
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8, 16,
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WSSCREEN_WSCOLORS | WSSCREEN_BLINK
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}, vga_50lscreen = {
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"80x50", 80, 50,
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&vga_emulops,
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8, 8,
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WSSCREEN_WSCOLORS | WSSCREEN_HILIT | WSSCREEN_BLINK
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}, vga_50lscreen_mono = {
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"80x50", 80, 50,
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&vga_emulops,
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8, 8,
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WSSCREEN_HILIT | WSSCREEN_UNDERLINE | WSSCREEN_BLINK | WSSCREEN_REVERSE
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}, vga_50lscreen_bf = {
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"80x50bf", 80, 50,
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&vga_emulops,
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8, 8,
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WSSCREEN_WSCOLORS | WSSCREEN_BLINK
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};
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#define VGA_SCREEN_CANTWOFONTS(type) (!((type)->capabilities & WSSCREEN_HILIT))
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const struct wsscreen_descr *_vga_scrlist[] = {
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&vga_stdscreen,
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&vga_stdscreen_bf,
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&vga_50lscreen,
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&vga_50lscreen_bf,
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/* XXX other formats, graphics screen? */
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}, *_vga_scrlist_mono[] = {
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&vga_stdscreen_mono,
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&vga_50lscreen_mono,
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/* XXX other formats, graphics screen? */
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};
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const struct wsscreen_list vga_screenlist = {
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sizeof(_vga_scrlist) / sizeof(struct wsscreen_descr *),
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_vga_scrlist
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}, vga_screenlist_mono = {
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sizeof(_vga_scrlist_mono) / sizeof(struct wsscreen_descr *),
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_vga_scrlist_mono
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};
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static int vga_ioctl __P((void *, u_long, caddr_t, int, struct proc *));
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static int vga_mmap __P((void *, off_t, int));
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static int vga_alloc_screen __P((void *, const struct wsscreen_descr *,
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void **, int *, int *, long *));
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static void vga_free_screen __P((void *, void *));
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static void vga_show_screen __P((void *, void *));
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static int vga_load_font __P((void *, void *, struct wsdisplay_font *));
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const struct wsdisplay_accessops vga_accessops = {
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vga_ioctl,
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vga_mmap,
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vga_alloc_screen,
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vga_free_screen,
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vga_show_screen,
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vga_load_font
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};
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/*
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* The following functions implement back-end configuration grabbing
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* and attachment.
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*/
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int
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vga_common_probe(iot, memt)
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bus_space_tag_t iot, memt;
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{
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bus_space_handle_t ioh_vga, ioh_6845, memh;
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u_int8_t regval;
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u_int16_t vgadata;
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int gotio_vga, gotio_6845, gotmem, mono, rv;
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int dispoffset;
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gotio_vga = gotio_6845 = gotmem = rv = 0;
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if (bus_space_map(iot, 0x3c0, 0x10, 0, &ioh_vga))
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goto bad;
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gotio_vga = 1;
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/* read "misc output register" */
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regval = bus_space_read_1(iot, ioh_vga, 0xc);
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mono = !(regval & 1);
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if (bus_space_map(iot, (mono ? 0x3b0 : 0x3d0), 0x10, 0, &ioh_6845))
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goto bad;
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gotio_6845 = 1;
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if (bus_space_map(memt, 0xa0000, 0x20000, 0, &memh))
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goto bad;
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gotmem = 1;
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dispoffset = (mono ? 0x10000 : 0x18000);
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vgadata = bus_space_read_2(memt, memh, dispoffset);
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bus_space_write_2(memt, memh, dispoffset, 0xa55a);
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if (bus_space_read_2(memt, memh, dispoffset) != 0xa55a)
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goto bad;
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bus_space_write_2(memt, memh, dispoffset, vgadata);
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/*
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* check if this is really a VGA
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* (try to write "Color Select" register as XFree86 does)
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* XXX check before if at least EGA?
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*/
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/* reset state */
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(void) bus_space_read_1(iot, ioh_6845, 10);
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bus_space_write_1(iot, ioh_vga, VGA_ATC_INDEX,
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20 | 0x20); /* colselect | enable */
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regval = bus_space_read_1(iot, ioh_vga, VGA_ATC_DATAR);
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/* toggle the implemented bits */
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bus_space_write_1(iot, ioh_vga, VGA_ATC_DATAW, regval ^ 0x0f);
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bus_space_write_1(iot, ioh_vga, VGA_ATC_INDEX,
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20 | 0x20);
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/* read back */
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if (bus_space_read_1(iot, ioh_vga, VGA_ATC_DATAR) != (regval ^ 0x0f))
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goto bad;
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/* restore contents */
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bus_space_write_1(iot, ioh_vga, VGA_ATC_DATAW, regval);
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rv = 1;
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bad:
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if (gotio_vga)
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bus_space_unmap(iot, ioh_vga, 0x10);
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if (gotio_6845)
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bus_space_unmap(iot, ioh_6845, 0x10);
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if (gotmem)
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bus_space_unmap(memt, memh, 0x20000);
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return (rv);
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}
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/*
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* We want at least ASCII 32..255 be present.
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*/
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#define vga_valid_primary_font(f) \
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(f->encoding == WSDISPLAY_FONTENC_IBM || \
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f->encoding == WSDISPLAY_FONTENC_ISO)
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int
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vga_selectfont(vc, scr, name1, name2)
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struct vga_config *vc;
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struct vgascreen *scr;
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char *name1, *name2;
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{
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const struct wsscreen_descr *type = scr->pcs.type;
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struct vgafont *f1, *f2;
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int i;
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f1 = f2 = 0;
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for (i = 0; i < 8; i++) {
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struct vgafont *f = vc->vc_fonts[i];
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if (!f || f->height != type->fontheight)
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continue;
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if (!f1 &&
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vga_valid_primary_font(f) &&
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(!name1 || !strcmp(name1, f->name))) {
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f1 = f;
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continue;
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}
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if (!f2 &&
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VGA_SCREEN_CANTWOFONTS(type) &&
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(!name2 || !strcmp(name2, f->name))) {
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f2 = f;
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continue;
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}
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}
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if (f1 && (!name2 || f2)) {
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#ifdef VGAFONTDEBUG
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if (scr != &vga_console_screen || vga_console_attached) {
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printf("vga (%s): font1=%s (slot %d)", type->name,
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f1->name, f1->slot);
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if (f2)
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printf(", font2=%s (slot %d)",
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f2->name, f2->slot);
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printf("\n");
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}
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#endif
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scr->fontset1 = f1;
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scr->fontset2 = f2;
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return (0);
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}
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return (ENXIO);
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}
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void
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vga_init_screen(vc, scr, type, existing, attrp)
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struct vga_config *vc;
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struct vgascreen *scr;
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const struct wsscreen_descr *type;
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int existing;
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long *attrp;
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{
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int cpos;
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int res;
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scr->cfg = vc;
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scr->pcs.hdl = (struct pcdisplay_handle *)&vc->hdl;
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scr->pcs.type = type;
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scr->pcs.active = 0;
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scr->mindispoffset = 0;
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scr->maxdispoffset = 0x8000 - type->nrows * type->ncols * 2;
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if (existing) {
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cpos = vga_6845_read(&vc->hdl, cursorh) << 8;
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cpos |= vga_6845_read(&vc->hdl, cursorl);
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/* make sure we have a valid cursor position */
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if (cpos < 0 || cpos >= type->nrows * type->ncols)
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cpos = 0;
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scr->pcs.dispoffset = vga_6845_read(&vc->hdl, startadrh) << 9;
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scr->pcs.dispoffset |= vga_6845_read(&vc->hdl, startadrl) << 1;
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/* make sure we have a valid memory offset */
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if (scr->pcs.dispoffset < scr->mindispoffset ||
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scr->pcs.dispoffset > scr->maxdispoffset)
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scr->pcs.dispoffset = scr->mindispoffset;
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} else {
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cpos = 0;
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scr->pcs.dispoffset = scr->mindispoffset;
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}
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scr->pcs.vc_crow = cpos / type->ncols;
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scr->pcs.vc_ccol = cpos % type->ncols;
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scr->pcs.cursoron = 1;
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#ifdef __alpha__
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if (!vc->hdl.vh_mono)
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/*
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* DEC firmware uses a blue background.
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*/
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res = vga_alloc_attr(scr, WSCOL_WHITE, WSCOL_BLUE,
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WSATTR_WSCOLORS, attrp);
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else
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#endif
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res = vga_alloc_attr(scr, 0, 0, 0, attrp);
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#ifdef DIAGNOSTIC
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if (res)
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panic("vga_init_screen: attribute botch");
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#endif
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scr->pcs.mem = NULL;
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if (vga_selectfont(vc, scr, 0, 0)) {
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if (scr == &vga_console_screen)
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panic("vga_init_screen: no font");
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else
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printf("vga_init_screen: no font\n");
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}
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vc->nscreens++;
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LIST_INSERT_HEAD(&vc->screens, scr, next);
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}
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void
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vga_init(vc, iot, memt)
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struct vga_config *vc;
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bus_space_tag_t iot, memt;
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{
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struct vga_handle *vh = &vc->hdl;
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u_int8_t mor;
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int i;
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vh->vh_iot = iot;
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vh->vh_memt = memt;
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if (bus_space_map(vh->vh_iot, 0x3c0, 0x10, 0, &vh->vh_ioh_vga))
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panic("vga_common_setup: couldn't map vga io");
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/* read "misc output register" */
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mor = bus_space_read_1(vh->vh_iot, vh->vh_ioh_vga, 0xc);
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vh->vh_mono = !(mor & 1);
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if (bus_space_map(vh->vh_iot, (vh->vh_mono ? 0x3b0 : 0x3d0), 0x10, 0,
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&vh->vh_ioh_6845))
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panic("vga_common_setup: couldn't map 6845 io");
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if (bus_space_map(vh->vh_memt, 0xa0000, 0x20000, 0, &vh->vh_allmemh))
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panic("vga_common_setup: couldn't map memory");
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if (bus_space_subregion(vh->vh_memt, vh->vh_allmemh,
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(vh->vh_mono ? 0x10000 : 0x18000), 0x8000,
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&vh->vh_memh))
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panic("vga_common_setup: mem subrange failed");
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/* should only reserve the space (no need to map - save KVM) */
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vc->vc_biostag = memt;
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if (bus_space_map(vc->vc_biostag, 0xc0000, 0x8000, 0,
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&vc->vc_bioshdl))
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vc->vc_biosmapped = 0;
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else
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vc->vc_biosmapped = 1;
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vc->nscreens = 0;
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LIST_INIT(&vc->screens);
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vc->active = NULL;
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vc->currenttype = vh->vh_mono ? &vga_stdscreen_mono : &vga_stdscreen;
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|
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vc->vc_fonts[0] = &vga_builtinfont;
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for (i = 1; i < 7; i++)
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vc->vc_fonts[i] = 0;
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vc->currentfontset1 = vc->currentfontset2 = 0;
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}
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|
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void
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vga_common_attach(self, iot, memt, type)
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struct device *self;
|
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bus_space_tag_t iot, memt;
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int type;
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|
{
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int console;
|
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struct vga_config *vc;
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struct wsemuldisplaydev_attach_args aa;
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|
|
console = vga_is_console(iot, type);
|
|
|
|
if (console) {
|
|
vc = &vga_console_vc;
|
|
vga_console_attached = 1;
|
|
} else {
|
|
vc = malloc(sizeof(struct vga_config), M_DEVBUF, M_WAITOK);
|
|
vga_init(vc, iot, memt);
|
|
}
|
|
|
|
aa.console = console;
|
|
aa.scrdata = (vc->hdl.vh_mono ? &vga_screenlist_mono : &vga_screenlist);
|
|
aa.accessops = &vga_accessops;
|
|
aa.accesscookie = vc;
|
|
|
|
config_found(self, &aa, wsemuldisplaydevprint);
|
|
}
|
|
|
|
int
|
|
vga_cnattach(iot, memt, type, check)
|
|
bus_space_tag_t iot, memt;
|
|
int type, check;
|
|
{
|
|
long defattr;
|
|
const struct wsscreen_descr *scr;
|
|
|
|
if (check && !vga_common_probe(iot, memt))
|
|
return (ENXIO);
|
|
|
|
/* set up bus-independent VGA configuration */
|
|
vga_init(&vga_console_vc, iot, memt);
|
|
scr = vga_console_vc.currenttype;
|
|
vga_init_screen(&vga_console_vc, &vga_console_screen, scr, 1, &defattr);
|
|
|
|
vga_console_screen.pcs.active = 1;
|
|
vga_console_vc.active = &vga_console_screen;
|
|
|
|
wsdisplay_cnattach(scr, &vga_console_screen,
|
|
vga_console_screen.pcs.vc_ccol,
|
|
vga_console_screen.pcs.vc_crow,
|
|
defattr);
|
|
|
|
vgaconsole = 1;
|
|
vga_console_type = type;
|
|
return (0);
|
|
}
|
|
|
|
int
|
|
vga_is_console(iot, type)
|
|
bus_space_tag_t iot;
|
|
int type;
|
|
{
|
|
if (vgaconsole &&
|
|
!vga_console_attached &&
|
|
iot == vga_console_vc.hdl.vh_iot &&
|
|
(vga_console_type == -1 || (type == vga_console_type)))
|
|
return (1);
|
|
return (0);
|
|
}
|
|
|
|
int
|
|
vga_ioctl(v, cmd, data, flag, p)
|
|
void *v;
|
|
u_long cmd;
|
|
caddr_t data;
|
|
int flag;
|
|
struct proc *p;
|
|
{
|
|
#if 0
|
|
struct vga_config *vc = v;
|
|
#endif
|
|
|
|
switch (cmd) {
|
|
#if 0
|
|
case WSDISPLAYIO_GTYPE:
|
|
*(int *)data = vc->vc_type;
|
|
/* XXX should get detailed hardware information here */
|
|
return 0;
|
|
#else
|
|
case WSDISPLAYIO_GTYPE:
|
|
*(int *)data = WSDISPLAY_TYPE_UNKNOWN;
|
|
return 0;
|
|
#endif
|
|
|
|
case WSDISPLAYIO_GINFO:
|
|
case WSDISPLAYIO_GETCMAP:
|
|
case WSDISPLAYIO_PUTCMAP:
|
|
case WSDISPLAYIO_GVIDEO:
|
|
case WSDISPLAYIO_SVIDEO:
|
|
case WSDISPLAYIO_GCURPOS:
|
|
case WSDISPLAYIO_SCURPOS:
|
|
case WSDISPLAYIO_GCURMAX:
|
|
case WSDISPLAYIO_GCURSOR:
|
|
case WSDISPLAYIO_SCURSOR:
|
|
/* NONE of these operations are by the generic VGA driver. */
|
|
return ENOTTY;
|
|
}
|
|
|
|
return -1;
|
|
}
|
|
|
|
static int
|
|
vga_mmap(v, offset, prot)
|
|
void *v;
|
|
off_t offset;
|
|
int prot;
|
|
{
|
|
|
|
/* XXX */
|
|
return -1;
|
|
}
|
|
|
|
int
|
|
vga_alloc_screen(v, type, cookiep, curxp, curyp, defattrp)
|
|
void *v;
|
|
const struct wsscreen_descr *type;
|
|
void **cookiep;
|
|
int *curxp, *curyp;
|
|
long *defattrp;
|
|
{
|
|
struct vga_config *vc = v;
|
|
struct vgascreen *scr;
|
|
|
|
if (vc->nscreens == 1) {
|
|
/*
|
|
* When allocating the second screen, get backing store
|
|
* for the first one too.
|
|
* XXX We could be more clever and use video RAM.
|
|
*/
|
|
vc->screens.lh_first->pcs.mem =
|
|
malloc(type->ncols * type->nrows * 2, M_DEVBUF, M_WAITOK);
|
|
}
|
|
|
|
scr = malloc(sizeof(struct vgascreen), M_DEVBUF, M_WAITOK);
|
|
vga_init_screen(vc, scr, type, vc->nscreens == 0, defattrp);
|
|
|
|
if (vc->nscreens == 1) {
|
|
scr->pcs.active = 1;
|
|
vc->active = scr;
|
|
vc->currenttype = type;
|
|
} else {
|
|
scr->pcs.mem = malloc(type->ncols * type->nrows * 2,
|
|
M_DEVBUF, M_WAITOK);
|
|
pcdisplay_eraserows(&scr->pcs, 0, type->nrows, *defattrp);
|
|
}
|
|
|
|
*cookiep = scr;
|
|
*curxp = scr->pcs.vc_ccol;
|
|
*curyp = scr->pcs.vc_crow;
|
|
|
|
return (0);
|
|
}
|
|
|
|
void
|
|
vga_free_screen(v, cookie)
|
|
void *v;
|
|
void *cookie;
|
|
{
|
|
struct vgascreen *vs = cookie;
|
|
struct vga_config *vc = vs->cfg;
|
|
|
|
LIST_REMOVE(vs, next);
|
|
if (vs != &vga_console_screen)
|
|
free(vs, M_DEVBUF);
|
|
else
|
|
panic("vga_free_screen: console");
|
|
|
|
if (vc->active == vs)
|
|
vc->active = 0;
|
|
}
|
|
|
|
static void
|
|
vga_setfont(vc, scr)
|
|
struct vga_config *vc;
|
|
struct vgascreen *scr;
|
|
{
|
|
int fontslot1, fontslot2;
|
|
|
|
fontslot1 = (scr->fontset1 ? scr->fontset1->slot : 0);
|
|
fontslot2 = (scr->fontset2 ? scr->fontset2->slot : fontslot1);
|
|
if (vc->currentfontset1 != fontslot1 ||
|
|
vc->currentfontset2 != fontslot2) {
|
|
vga_setfontset(&vc->hdl, fontslot1, fontslot2);
|
|
vc->currentfontset1 = fontslot1;
|
|
vc->currentfontset2 = fontslot2;
|
|
}
|
|
}
|
|
|
|
void
|
|
vga_show_screen(v, cookie)
|
|
void *v;
|
|
void *cookie;
|
|
{
|
|
struct vgascreen *scr = cookie, *oldscr;
|
|
struct vga_config *vc = scr->cfg;
|
|
struct vga_handle *vh = &vc->hdl;
|
|
const struct wsscreen_descr *type = scr->pcs.type;
|
|
|
|
oldscr = vc->active; /* can be NULL! */
|
|
#ifdef DIAGNOSTIC
|
|
if (oldscr) {
|
|
if (!oldscr->pcs.active)
|
|
panic("vga_show_screen: not active");
|
|
if (oldscr->pcs.type != vc->currenttype)
|
|
panic("vga_show_screen: bad type");
|
|
}
|
|
#endif
|
|
if (scr == oldscr) {
|
|
return;
|
|
}
|
|
#ifdef DIAGNOSTIC
|
|
if (scr->pcs.active)
|
|
panic("vga_show_screen: active");
|
|
#endif
|
|
|
|
if (oldscr) {
|
|
const struct wsscreen_descr *oldtype = oldscr->pcs.type;
|
|
|
|
oldscr->pcs.active = 0;
|
|
bus_space_read_region_2(vh->vh_memt, vh->vh_memh,
|
|
oldscr->pcs.dispoffset, oldscr->pcs.mem,
|
|
oldtype->ncols * oldtype->nrows);
|
|
}
|
|
|
|
if (vc->currenttype != type) {
|
|
vga_setscreentype(vh, type);
|
|
vc->currenttype = type;
|
|
}
|
|
|
|
vga_setfont(vc, scr);
|
|
/* XXX swich colours! */
|
|
|
|
scr->pcs.dispoffset = scr->mindispoffset;
|
|
if (!oldscr || (scr->pcs.dispoffset != oldscr->pcs.dispoffset)) {
|
|
vga_6845_write(vh, startadrh, scr->pcs.dispoffset >> 9);
|
|
vga_6845_write(vh, startadrl, scr->pcs.dispoffset >> 1);
|
|
}
|
|
|
|
bus_space_write_region_2(vh->vh_memt, vh->vh_memh,
|
|
scr->pcs.dispoffset, scr->pcs.mem,
|
|
type->ncols * type->nrows);
|
|
scr->pcs.active = 1;
|
|
|
|
vc->active = scr;
|
|
|
|
pcdisplay_cursor(&scr->pcs, scr->pcs.cursoron,
|
|
scr->pcs.vc_crow, scr->pcs.vc_ccol);
|
|
}
|
|
|
|
static int
|
|
vga_load_font(v, cookie, data)
|
|
void *v;
|
|
void *cookie;
|
|
struct wsdisplay_font *data;
|
|
{
|
|
struct vga_config *vc = v;
|
|
struct vgascreen *scr = cookie;
|
|
char *name2;
|
|
int res, slot;
|
|
struct vgafont *f;
|
|
|
|
if (scr) {
|
|
name2 = strchr(data->name, ',');
|
|
if (name2)
|
|
*name2++ = '\0';
|
|
res = vga_selectfont(vc, scr, data->name, name2);
|
|
if (!res)
|
|
vga_setfont(vc, scr);
|
|
return (res);
|
|
}
|
|
|
|
if (data->fontwidth != 8 || data->stride != 1)
|
|
return (EINVAL); /* XXX 1 byte per line */
|
|
if (data->firstchar != 0 || data->numchars != 256)
|
|
return (EINVAL);
|
|
|
|
for (slot = 0; slot < 8; slot++)
|
|
if (!vc->vc_fonts[slot])
|
|
break;
|
|
if (slot == 8)
|
|
return (ENOSPC);
|
|
|
|
f = malloc(sizeof(struct vgafont), M_DEVBUF, M_WAITOK);
|
|
strncpy(f->name, data->name, sizeof(f->name));
|
|
f->height = data->fontheight;
|
|
f->encoding = data->encoding;
|
|
#ifdef notyet
|
|
f->firstchar = data->firstchar;
|
|
f->numchars = data->numchars;
|
|
#endif
|
|
#ifdef VGAFONTDEBUG
|
|
printf("vga: load %s (8x%d, enc %d) font to slot %d\n", f->name,
|
|
f->height, f->encoding, slot);
|
|
#endif
|
|
vga_loadchars(&vc->hdl, slot, 0, 256, f->height, data->data);
|
|
f->slot = slot;
|
|
vc->vc_fonts[slot] = f;
|
|
|
|
return (0);
|
|
}
|
|
|
|
static int
|
|
vga_alloc_attr(id, fg, bg, flags, attrp)
|
|
void *id;
|
|
int fg, bg;
|
|
int flags;
|
|
long *attrp;
|
|
{
|
|
struct vgascreen *scr = id;
|
|
struct vga_config *vc = scr->cfg;
|
|
|
|
if (vc->hdl.vh_mono) {
|
|
if (flags & WSATTR_WSCOLORS)
|
|
return (EINVAL);
|
|
if (flags & WSATTR_REVERSE)
|
|
*attrp = 0x70;
|
|
else
|
|
*attrp = 0x07;
|
|
if (flags & WSATTR_UNDERLINE)
|
|
*attrp |= FG_UNDERLINE;
|
|
if (flags & WSATTR_HILIT)
|
|
*attrp |= FG_INTENSE;
|
|
} else {
|
|
if (flags & (WSATTR_UNDERLINE | WSATTR_REVERSE))
|
|
return (EINVAL);
|
|
if (flags & WSATTR_WSCOLORS)
|
|
*attrp = fgansitopc[fg] | bgansitopc[bg];
|
|
else
|
|
*attrp = 7;
|
|
if (flags & WSATTR_HILIT)
|
|
*attrp += 8;
|
|
}
|
|
if (flags & WSATTR_BLINK)
|
|
*attrp |= FG_BLINK;
|
|
return (0);
|
|
}
|
|
|
|
void
|
|
vga_copyrows(id, srcrow, dstrow, nrows)
|
|
void *id;
|
|
int srcrow, dstrow, nrows;
|
|
{
|
|
struct vgascreen *scr = id;
|
|
bus_space_tag_t memt = scr->pcs.hdl->ph_memt;
|
|
bus_space_handle_t memh = scr->pcs.hdl->ph_memh;
|
|
int ncols = scr->pcs.type->ncols;
|
|
bus_size_t srcoff, dstoff;
|
|
|
|
srcoff = srcrow * ncols + 0;
|
|
dstoff = dstrow * ncols + 0;
|
|
|
|
if (scr->pcs.active) {
|
|
if (dstrow == 0 && (srcrow + nrows == scr->pcs.type->nrows)) {
|
|
/* scroll up whole screen */
|
|
if ((scr->pcs.dispoffset + srcrow * ncols * 2)
|
|
<= scr->maxdispoffset) {
|
|
scr->pcs.dispoffset += srcrow * ncols * 2;
|
|
} else {
|
|
bus_space_copy_region_2(memt, memh,
|
|
scr->pcs.dispoffset + srcoff * 2,
|
|
memh, scr->mindispoffset,
|
|
nrows * ncols);
|
|
scr->pcs.dispoffset = scr->mindispoffset;
|
|
}
|
|
vga_6845_write(&scr->cfg->hdl, startadrh,
|
|
scr->pcs.dispoffset >> 9);
|
|
vga_6845_write(&scr->cfg->hdl, startadrl,
|
|
scr->pcs.dispoffset >> 1);
|
|
} else {
|
|
bus_space_copy_region_2(memt, memh,
|
|
scr->pcs.dispoffset + srcoff * 2,
|
|
memh, scr->pcs.dispoffset + dstoff * 2,
|
|
nrows * ncols);
|
|
}
|
|
} else
|
|
bcopy(&scr->pcs.mem[srcoff], &scr->pcs.mem[dstoff],
|
|
nrows * ncols * 2);
|
|
}
|
|
|
|
#ifdef WSCONS_SUPPORT_PCVTFONTS
|
|
|
|
#define NOTYET 0xffff
|
|
static u_int16_t pcvt_unichars[0xa0] = {
|
|
/* 0 */ NOTYET, NOTYET, NOTYET, NOTYET, NOTYET, NOTYET, NOTYET, NOTYET,
|
|
NOTYET,
|
|
0x2409, /* SYMBOL FOR HORIZONTAL TABULATION */
|
|
0x240a, /* SYMBOL FOR LINE FEED */
|
|
0x240b, /* SYMBOL FOR VERTICAL TABULATION */
|
|
0x240c, /* SYMBOL FOR FORM FEED */
|
|
0x240d, /* SYMBOL FOR CARRIAGE RETURN */
|
|
NOTYET, NOTYET,
|
|
NOTYET, NOTYET, NOTYET, NOTYET, NOTYET, NOTYET, NOTYET, NOTYET,
|
|
NOTYET, NOTYET, NOTYET, NOTYET, NOTYET, NOTYET, NOTYET, NOTYET,
|
|
/* 2 */ NOTYET, NOTYET, NOTYET, NOTYET, NOTYET, NOTYET, NOTYET, NOTYET,
|
|
NOTYET, NOTYET, NOTYET, NOTYET, NOTYET, NOTYET, NOTYET, NOTYET,
|
|
NOTYET, NOTYET, NOTYET, NOTYET, NOTYET, NOTYET, NOTYET, NOTYET,
|
|
NOTYET, NOTYET, NOTYET, NOTYET, NOTYET, NOTYET, NOTYET, NOTYET,
|
|
/* 4 */ 0x03c1, /* GREEK SMALL LETTER RHO */
|
|
0x03c8, /* GREEK SMALL LETTER PSI */
|
|
0x2202, /* PARTIAL DIFFERENTIAL */
|
|
0x03bb, /* GREEK SMALL LETTER LAMDA */
|
|
0x03b9, /* GREEK SMALL LETTER IOTA */
|
|
0x03b7, /* GREEK SMALL LETTER ETA */
|
|
0x03b5, /* GREEK SMALL LETTER EPSILON */
|
|
0x03c7, /* GREEK SMALL LETTER CHI */
|
|
0x2228, /* LOGICAL OR */
|
|
0x2227, /* LOGICAL AND */
|
|
0x222a, /* UNION */
|
|
0x2283, /* SUPERSET OF */
|
|
0x2282, /* SUBSET OF */
|
|
0x03a5, /* GREEK CAPITAL LETTER UPSILON */
|
|
0x039e, /* GREEK CAPITAL LETTER XI */
|
|
0x03a8, /* GREEK CAPITAL LETTER PSI */
|
|
0x03a0, /* GREEK CAPITAL LETTER PI */
|
|
0x21d2, /* RIGHTWARDS DOUBLE ARROW */
|
|
0x21d4, /* LEFT RIGHT DOUBLE ARROW */
|
|
0x039b, /* GREEK CAPITAL LETTER LAMDA */
|
|
0x0398, /* GREEK CAPITAL LETTER THETA */
|
|
0x2243, /* ASYMPTOTICALLY EQUAL TO */
|
|
0x2207, /* NABLA */
|
|
0x2206, /* INCREMENT */
|
|
0x221d, /* PROPORTIONAL TO */
|
|
0x2234, /* THEREFORE */
|
|
0x222b, /* INTEGRAL */
|
|
0x2215, /* DIVISION SLASH */
|
|
0x2216, /* SET MINUS */
|
|
NOTYET, NOTYET, NOTYET,
|
|
/* 6 */ NOTYET, NOTYET, NOTYET, NOTYET, NOTYET,
|
|
0x221a, /* SQUARE ROOT */
|
|
0x03c9, /* GREEK SMALL LETTER OMEGA */
|
|
0x00a5, /* YEN SIGN */
|
|
0x03be, /* GREEK SMALL LETTER XI */
|
|
0x00fd, /* LATIN SMALL LETTER Y WITH ACUTE */
|
|
0x00fe, /* LATIN SMALL LETTER THORN */
|
|
0x00f0, /* LATIN SMALL LETTER ETH */
|
|
0x00de, /* LATIN CAPITAL LETTER THORN */
|
|
0x00dd, /* LATIN CAPITAL LETTER Y WITH ACUTE */
|
|
0x00d7, /* MULTIPLICATION SIGN */
|
|
0x00d0, /* LATIN CAPITAL LETTER ETH */
|
|
0x00be, /* VULGAR FRACTION THREE QUARTERS */
|
|
0x00b8, /* CEDILLA */
|
|
0x00b4, /* ACUTE ACCENT */
|
|
0x00af, /* MACRON */
|
|
0x00ae, /* REGISTERED SIGN */
|
|
0x00ad, /* SOFT HYPHEN */
|
|
0x00ac, /* NOT SIGN */
|
|
0x00a8, /* DIAERESIS */
|
|
0x2260, /* NOT EQUAL TO */
|
|
NOTYET, NOTYET, NOTYET, NOTYET, NOTYET,
|
|
0x03c5, /* GREEK SMALL LETTER UPSILON */
|
|
0x00f8, /* LATIN SMALL LETTER O WITH STROKE */
|
|
/* 8 */ 0x0153, /* LATIN SMALL LIGATURE OE */
|
|
0x00f5, /* LATIN SMALL LETTER O WITH TILDE !!!doc bug */
|
|
0x00e3, /* LATIN SMALL LETTER A WITH TILDE */
|
|
0x0178, /* LATIN CAPITAL LETTER Y WITH DIAERESIS */
|
|
0x00db, /* LATIN CAPITAL LETTER U WITH CIRCUMFLEX */
|
|
0x00da, /* LATIN CAPITAL LETTER U WITH ACUTE */
|
|
0x00d9, /* LATIN CAPITAL LETTER U WITH GRAVE */
|
|
0x00d8, /* LATIN CAPITAL LETTER O WITH STROKE */
|
|
0x0152, /* LATIN CAPITAL LIGATURE OE */
|
|
0x00d5, /* LATIN CAPITAL LETTER O WITH TILDE */
|
|
0x00d4, /* LATIN CAPITAL LETTER O WITH CIRCUMFLEX */
|
|
0x00d3, /* LATIN CAPITAL LETTER O WITH ACUTE */
|
|
0x00d2, /* LATIN CAPITAL LETTER O WITH GRAVE */
|
|
0x00cf, /* LATIN CAPITAL LETTER I WITH DIAERESIS */
|
|
0x00ce, /* LATIN CAPITAL LETTER I WITH CIRCUMFLEX */
|
|
0x00cd, /* LATIN CAPITAL LETTER I WITH ACUTE */
|
|
0x00cc, /* LATIN CAPITAL LETTER I WITH GRAVE */
|
|
0x00cb, /* LATIN CAPITAL LETTER E WITH DIAERESIS */
|
|
0x00ca, /* LATIN CAPITAL LETTER E WITH CIRCUMFLEX */
|
|
0x00c8, /* LATIN CAPITAL LETTER E WITH GRAVE */
|
|
0x00c3, /* LATIN CAPITAL LETTER A WITH TILDE */
|
|
0x00c2, /* LATIN CAPITAL LETTER A WITH CIRCUMFLEX */
|
|
0x00c1, /* LATIN CAPITAL LETTER A WITH ACUTE */
|
|
0x00c0, /* LATIN CAPITAL LETTER A WITH GRAVE */
|
|
0x00b9, /* SUPERSCRIPT ONE */
|
|
0x00b7, /* MIDDLE DOT */
|
|
0x03b6, /* GREEK SMALL LETTER ZETA */
|
|
0x00b3, /* SUPERSCRIPT THREE */
|
|
0x00a9, /* COPYRIGHT SIGN */
|
|
0x00a4, /* CURRENCY SIGN */
|
|
0x03ba, /* GREEK SMALL LETTER KAPPA */
|
|
NOTYET
|
|
};
|
|
|
|
static int vga_pcvt_mapchar __P((int, unsigned int *));
|
|
|
|
static int
|
|
vga_pcvt_mapchar(uni, index)
|
|
int uni;
|
|
unsigned int *index;
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < 0xa0; i++) /* 0xa0..0xff are reserved */
|
|
if (uni == pcvt_unichars[i]) {
|
|
*index = i;
|
|
return (5);
|
|
}
|
|
*index = 0x99; /* middle dot */
|
|
return (0);
|
|
}
|
|
|
|
#endif /* WSCONS_SUPPORT_PCVTFONTS */
|
|
|
|
static int _vga_mapchar __P((void *, struct vgafont *, int, unsigned int *));
|
|
|
|
static int
|
|
_vga_mapchar(id, font, uni, index)
|
|
void *id;
|
|
struct vgafont *font;
|
|
int uni;
|
|
unsigned int *index;
|
|
{
|
|
|
|
switch (font->encoding) {
|
|
case WSDISPLAY_FONTENC_ISO:
|
|
if (uni < 256) {
|
|
*index = uni;
|
|
return (5);
|
|
} else {
|
|
*index = ' ';
|
|
return (0);
|
|
}
|
|
break;
|
|
case WSDISPLAY_FONTENC_IBM:
|
|
return (pcdisplay_mapchar(id, uni, index));
|
|
#ifdef WSCONS_SUPPORT_PCVTFONTS
|
|
case WSDISPLAY_FONTENC_PCVT:
|
|
return (vga_pcvt_mapchar(uni, index));
|
|
#endif
|
|
default:
|
|
printf("_vga_mapchar: encoding=%d\n", font->encoding);
|
|
*index = ' ';
|
|
return (0);
|
|
}
|
|
}
|
|
|
|
static int
|
|
vga_mapchar(id, uni, index)
|
|
void *id;
|
|
int uni;
|
|
unsigned int *index;
|
|
{
|
|
struct vgascreen *scr = id;
|
|
unsigned int idx1, idx2;
|
|
int res1, res2;
|
|
|
|
res1 = 0;
|
|
idx1 = ' '; /* space */
|
|
if (scr->fontset1)
|
|
res1 = _vga_mapchar(id, scr->fontset1, uni, &idx1);
|
|
res2 = -1;
|
|
if (scr->fontset2) {
|
|
KASSERT(VGA_SCREEN_CANTWOFONTS(scr->pcs.type));
|
|
res2 = _vga_mapchar(id, scr->fontset2, uni, &idx2);
|
|
}
|
|
if (res2 > res1) {
|
|
*index = idx2;
|
|
return (res2 | 0x0800); /* attribute bit 3 */
|
|
}
|
|
*index = idx1;
|
|
return (res1);
|
|
}
|