/* $NetBSD: vga_raster.c,v 1.15 2004/08/13 04:36:08 mycroft Exp $ */ /* * Copyright (c) 2001, 2002 Bang Jun-Young * Copyright (c) 2004 Julio M. Merino Vidal * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ /* * Copyright (c) 1995, 1996 Carnegie-Mellon University. * All rights reserved. * * Author: Chris G. Demetriou * * 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 the * rights to redistribute these changes. */ #include __KERNEL_RCSID(0, "$NetBSD: vga_raster.c,v 1.15 2004/08/13 04:36:08 mycroft Exp $"); #include "opt_wsmsgattrs.h" /* for WSDISPLAY_CUSTOM_OUTPUT */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include int vga_no_builtinfont = 0; u_int8_t builtinfont_data[256 * 16]; struct wsdisplay_font builtinfont = { "builtin", /* typeface name */ 0, /* firstchar */ 256, /* numchars */ WSDISPLAY_FONTENC_IBM, /* encoding */ 8, /* width */ 16, /* height */ 1, /* stride */ WSDISPLAY_FONTORDER_L2R, /* bit order */ WSDISPLAY_FONTORDER_L2R, /* byte order */ builtinfont_data /* data */ }; struct vga_scrmem { u_int16_t ch; u_int8_t attr; u_int8_t second; /* XXXBJY should be u_int8_t len; */ u_int8_t enc; }; #ifdef VGA_CONSOLE_SCREENTYPE #define VGA_SCRMEM_SIZE (80 * 30) #else #define VGA_SCRMEM_SIZE (80 * 25) #endif struct vga_scrmem boot_scrmem[VGA_SCRMEM_SIZE]; struct vga_raster_font { LIST_ENTRY(vga_raster_font) next; struct wsdisplay_font *font; }; struct vgascreen { LIST_ENTRY(vgascreen) next; struct vga_config *cfg; struct vga_handle *hdl; const struct wsscreen_descr *type; int active; struct vga_scrmem *mem; int encoding; int dispoffset; int mindispoffset; int maxdispoffset; int cursoron; /* Is cursor displayed? */ int cursorcol; /* Current cursor column */ int cursorrow; /* Current cursor row */ struct vga_scrmem cursortmp; int cursorstride; LIST_HEAD(, vga_raster_font) fontset; }; struct vga_moderegs { u_int8_t miscout; /* Misc. output */ u_int8_t crtc[MC6845_NREGS]; /* CRTC controller */ u_int8_t atc[VGA_ATC_NREGS]; /* Attribute controller */ u_int8_t ts[VGA_TS_NREGS]; /* Time sequencer */ u_int8_t gdc[VGA_GDC_NREGS]; /* Graphics display controller */ }; static int vgaconsole, vga_console_type, vga_console_attached; static struct vgascreen vga_console_screen; static struct vga_config vga_console_vc; static struct vga_raster_font vga_console_fontset_ascii; static struct videomode vga_console_modes[2] = { /* 640x400 for 80x25, 80x40 and 80x50 modes */ { 25175, 640, 664, 760, 800, 400, 409, 411, 450, 0 }, /* 640x480 for 80x30 mode */ { 25175, 640, 664, 760, 800, 480, 491, 493, 525, 0 } }; static void vga_raster_init(struct vga_config *, bus_space_tag_t, bus_space_tag_t); static void vga_raster_init_screen(struct vga_config *, struct vgascreen *, const struct wsscreen_descr *, int, long *); static void vga_raster_setup_font(struct vga_config *, struct vgascreen *); static void vga_setup_regs(struct videomode *, struct vga_moderegs *); static void vga_set_mode(struct vga_handle *, struct vga_moderegs *); static void vga_restore_screen(struct vgascreen *, const struct wsscreen_descr *, struct vga_scrmem *); static void vga_raster_cursor_init(struct vgascreen *, int); static void _vga_raster_putchar(void *, int, int, u_int, long, struct vga_raster_font *); static void vga_raster_cursor(void *, int, int, int); static int vga_raster_mapchar(void *, int, u_int *); static void vga_raster_putchar(void *, int, int, u_int, long); static void vga_raster_copycols(void *, int, int, int, int); static void vga_raster_erasecols(void *, int, int, int, long); static void vga_raster_copyrows(void *, int, int, int); static void vga_raster_eraserows(void *, int, int, long); static int vga_raster_allocattr(void *, int, int, int, long *); #ifdef WSDISPLAY_CUSTOM_OUTPUT static void vga_raster_replaceattr(void *, long, long); #endif /* WSDISPLAY_CUSTOM_OUTPUT */ const struct wsdisplay_emulops vga_raster_emulops = { vga_raster_cursor, vga_raster_mapchar, vga_raster_putchar, vga_raster_copycols, vga_raster_erasecols, vga_raster_copyrows, vga_raster_eraserows, vga_raster_allocattr, #ifdef WSDISPLAY_CUSTOM_OUTPUT vga_raster_replaceattr, #else /* WSDISPLAY_CUSTOM_OUTPUT */ NULL, #endif /* WSDISPLAY_CUSTOM_OUTPUT */ }; /* * translate WS(=ANSI) color codes to standard pc ones */ static const unsigned char fgansitopc[] = { #ifdef __alpha__ /* * XXX DEC HAS SWITCHED THE CODES FOR BLUE AND RED!!! * XXX We should probably not bother with this * XXX (reinitialize the palette registers). */ FG_BLACK, FG_BLUE, FG_GREEN, FG_CYAN, FG_RED, FG_MAGENTA, FG_BROWN, FG_LIGHTGREY #else FG_BLACK, FG_RED, FG_GREEN, FG_BROWN, FG_BLUE, FG_MAGENTA, FG_CYAN, FG_LIGHTGREY #endif }, bgansitopc[] = { #ifdef __alpha__ BG_BLACK, BG_BLUE, BG_GREEN, BG_CYAN, BG_RED, BG_MAGENTA, BG_BROWN, BG_LIGHTGREY #else BG_BLACK, BG_RED, BG_GREEN, BG_BROWN, BG_BLUE, BG_MAGENTA, BG_CYAN, BG_LIGHTGREY #endif }; const struct wsscreen_descr vga_25lscreen = { "80x25", 80, 25, &vga_raster_emulops, 8, 16, WSSCREEN_WSCOLORS | WSSCREEN_HILIT | WSSCREEN_BLINK, &vga_console_modes[0] }, vga_25lscreen_mono = { "80x25", 80, 25, &vga_raster_emulops, 8, 16, WSSCREEN_HILIT | WSSCREEN_UNDERLINE | WSSCREEN_BLINK | WSSCREEN_REVERSE, &vga_console_modes[0] }, vga_30lscreen = { "80x30", 80, 30, &vga_raster_emulops, 8, 16, WSSCREEN_WSCOLORS | WSSCREEN_HILIT | WSSCREEN_BLINK, &vga_console_modes[1] }, vga_30lscreen_mono = { "80x30", 80, 30, &vga_raster_emulops, 8, 16, WSSCREEN_HILIT | WSSCREEN_UNDERLINE | WSSCREEN_BLINK | WSSCREEN_REVERSE, &vga_console_modes[1] }, vga_40lscreen = { "80x40", 80, 40, &vga_raster_emulops, 8, 10, WSSCREEN_WSCOLORS | WSSCREEN_HILIT | WSSCREEN_BLINK, &vga_console_modes[0] }, vga_40lscreen_mono = { "80x40", 80, 40, &vga_raster_emulops, 8, 10, WSSCREEN_HILIT | WSSCREEN_UNDERLINE | WSSCREEN_BLINK | WSSCREEN_REVERSE, &vga_console_modes[0] }, vga_50lscreen = { "80x50", 80, 50, &vga_raster_emulops, 8, 8, WSSCREEN_WSCOLORS | WSSCREEN_HILIT | WSSCREEN_BLINK, &vga_console_modes[0] }, vga_50lscreen_mono = { "80x50", 80, 50, &vga_raster_emulops, 8, 8, WSSCREEN_HILIT | WSSCREEN_UNDERLINE | WSSCREEN_BLINK | WSSCREEN_REVERSE, &vga_console_modes[0] }; const struct wsscreen_descr *_vga_scrlist[] = { &vga_25lscreen, &vga_30lscreen, &vga_40lscreen, &vga_50lscreen, }, *_vga_scrlist_mono[] = { &vga_25lscreen_mono, &vga_30lscreen_mono, &vga_40lscreen_mono, &vga_50lscreen_mono, }; const struct wsscreen_list vga_screenlist = { sizeof(_vga_scrlist) / sizeof(struct wsscreen_descr *), _vga_scrlist }, vga_screenlist_mono = { sizeof(_vga_scrlist_mono) / sizeof(struct wsscreen_descr *), _vga_scrlist_mono }; static int vga_raster_ioctl(void *, u_long, caddr_t, int, struct proc *); static paddr_t vga_raster_mmap(void *, off_t, int); static int vga_raster_alloc_screen(void *, const struct wsscreen_descr *, void **, int *, int *, long *); static void vga_raster_free_screen(void *, void *); static int vga_raster_show_screen(void *, void *, int, void (*)(void *, int, int), void *); static int vga_raster_load_font(void *, void *, struct wsdisplay_font *); static void vga_switch_screen(struct vga_config *); static void vga_raster_setscreentype(struct vga_config *, const struct wsscreen_descr *); const struct wsdisplay_accessops vga_raster_accessops = { vga_raster_ioctl, vga_raster_mmap, vga_raster_alloc_screen, vga_raster_free_screen, vga_raster_show_screen, vga_raster_load_font, }; int vga_cnattach(bus_space_tag_t iot, bus_space_tag_t memt, int type, int check) { long defattr; const struct wsscreen_descr *scr; #ifdef VGA_CONSOLE_SCREENTYPE char *typestr; #endif if (check && !vga_common_probe(iot, memt)) return (ENXIO); /* set up bus-independent VGA configuration */ vga_raster_init(&vga_console_vc, iot, memt); #ifdef VGA_CONSOLE_SCREENTYPE scr = wsdisplay_screentype_pick(vga_console_vc.hdl.vh_mono ? &vga_screenlist_mono : &vga_screenlist, VGA_CONSOLE_SCREENTYPE); if (!scr) /* Invalid screen type, continue with the default mode. */ typestr = "80x25"; else if (scr->nrows > 30) /* Unsupported screen type, try 80x30. */ typestr = "80x30"; scr = wsdisplay_screentype_pick(vga_console_vc.hdl.vh_mono ? &vga_screenlist_mono : &vga_screenlist, typestr); if (scr != vga_console_vc.currenttype) vga_console_vc.currenttype = scr; #else scr = vga_console_vc.currenttype; #endif vga_raster_init_screen(&vga_console_vc, &vga_console_screen, scr, 1, &defattr); vga_console_screen.active = 1; vga_console_vc.active = &vga_console_screen; wsdisplay_cnattach(scr, &vga_console_screen, vga_console_screen.cursorcol, vga_console_screen.cursorrow, defattr); vgaconsole = 1; vga_console_type = type; return (0); } void vga_raster_init(struct vga_config *vc, bus_space_tag_t iot, bus_space_tag_t memt) { struct vga_handle *vh = &vc->hdl; u_int8_t mor; struct vga_raster_font *vf; vh->vh_iot = iot; vh->vh_memt = memt; if (bus_space_map(vh->vh_iot, 0x3c0, 0x10, 0, &vh->vh_ioh_vga)) panic("vga_raster_init: couldn't map vga io"); /* read "misc output register" */ mor = bus_space_read_1(vh->vh_iot, vh->vh_ioh_vga, VGA_MISC_DATAR); vh->vh_mono = !(mor & 1); if (bus_space_map(vh->vh_iot, (vh->vh_mono ? 0x3b0 : 0x3d0), 0x10, 0, &vh->vh_ioh_6845)) panic("vga_raster_init: couldn't map 6845 io"); if (bus_space_map(vh->vh_memt, 0xa0000, 0x20000, 0, &vh->vh_allmemh)) panic("vga_raster_init: couldn't map memory"); if (bus_space_subregion(vh->vh_memt, vh->vh_allmemh, 0, 0x10000, &vh->vh_memh)) panic("vga_raster_init: mem subrange failed"); /* should only reserve the space (no need to map - save KVM) */ vc->vc_biostag = memt; if (bus_space_map(vc->vc_biostag, 0xc0000, 0x8000, 0, &vc->vc_bioshdl)) vc->vc_biosmapped = 0; else vc->vc_biosmapped = 1; vc->nscreens = 0; LIST_INIT(&vc->screens); vc->active = NULL; vc->currenttype = vh->vh_mono ? &vga_25lscreen_mono : &vga_25lscreen; callout_init(&vc->vc_switch_callout); wsfont_init(); vc->nfonts = 1; LIST_INIT(&vc->vc_fontlist); vf = &vga_console_fontset_ascii; if (vga_no_builtinfont) { struct wsdisplay_font *wf; int cookie; /* prefer 8x16 pixel font */ cookie = wsfont_find(NULL, 8, 16, 0, WSDISPLAY_FONTORDER_L2R, 0); if (cookie == -1) cookie = wsfont_find(NULL, 0, 0, 0, WSDISPLAY_FONTORDER_L2R, WSDISPLAY_FONTORDER_L2R); if (cookie == -1 || wsfont_lock(cookie, &wf)) panic("vga_raster_init: can't load console font"); vf->font = wf; } else { vga_load_builtinfont(vh, builtinfont_data, 0, 256); vf->font = &builtinfont; } LIST_INSERT_HEAD(&vc->vc_fontlist, vf, next); } void vga_raster_init_screen(struct vga_config *vc, struct vgascreen *scr, const struct wsscreen_descr *type, int existing, long *attrp) { int cpos; int res; struct vga_handle *vh; scr->cfg = vc; scr->hdl = &vc->hdl; scr->type = type; scr->mindispoffset = 0; scr->maxdispoffset = 0x10000; vh = &vc->hdl; LIST_INIT(&scr->fontset); vga_raster_setup_font(vc, scr); if (existing) { int i; cpos = vga_6845_read(vh, cursorh) << 8; cpos |= vga_6845_read(vh, cursorl); /* make sure we have a valid cursor position */ if (cpos < 0 || cpos >= type->nrows * type->ncols) cpos = 0; scr->dispoffset = vga_6845_read(vh, startadrh) << 9; scr->dispoffset |= vga_6845_read(vh, startadrl) << 1; /* make sure we have a valid memory offset */ if (scr->dispoffset < scr->mindispoffset || scr->dispoffset > scr->maxdispoffset) scr->dispoffset = scr->mindispoffset; scr->mem = boot_scrmem; scr->active = 1; /* Save the current screen to memory. XXXBJY assume 80x25 */ for (i = 0; i < 80 * 25; i++) { scr->mem[i].ch = bus_space_read_1(vh->vh_memt, vh->vh_allmemh, 0x18000 + i * 2); scr->mem[i].attr = bus_space_read_1(vh->vh_memt, vh->vh_allmemh, 0x18000 + i * 2 + 1); scr->mem[i].enc = scr->encoding; } vga_raster_setscreentype(vc, type); /* Clear the entire screen. */ vga_gdc_write(vh, mode, 0x02); bus_space_set_region_4(vh->vh_memt, vh->vh_allmemh, 0, 0, 0x4000); vga_restore_screen(scr, type, scr->mem); } else { cpos = 0; scr->dispoffset = scr->mindispoffset; scr->mem = NULL; scr->active = 0; } scr->cursorrow = cpos / type->ncols; scr->cursorcol = cpos % type->ncols; vga_raster_cursor_init(scr, existing); #ifdef __alpha__ if (!vc->hdl.vh_mono) /* * DEC firmware uses a blue background. */ res = vga_raster_allocattr(scr, WSCOL_WHITE, WSCOL_BLUE, WSATTR_WSCOLORS, attrp); else #endif res = vga_raster_allocattr(scr, 0, 0, 0, attrp); #ifdef DIAGNOSTIC if (res) panic("vga_raster_init_screen: attribute botch"); #endif vc->nscreens++; LIST_INSERT_HEAD(&vc->screens, scr, next); } void vga_common_attach(struct vga_softc *sc, bus_space_tag_t iot, bus_space_tag_t memt, int type, int quirks, const struct vga_funcs *vf) { int console; struct vga_config *vc; struct wsemuldisplaydev_attach_args aa; 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_raster_init(vc, iot, memt); } vc->vc_type = type; vc->vc_funcs = vf; sc->sc_vc = vc; vc->softc = sc; aa.console = console; aa.scrdata = (vc->hdl.vh_mono ? &vga_screenlist_mono : &vga_screenlist); aa.accessops = &vga_raster_accessops; aa.accesscookie = vc; config_found(&sc->sc_dev, &aa, wsemuldisplaydevprint); } int vga_is_console(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); } static int vga_get_video(struct vga_config *vc) { return (vga_ts_read(&vc->hdl, mode) & VGA_TS_MODE_BLANK) == 0; } static void vga_set_video(struct vga_config *vc, int state) { int val; vga_ts_write(&vc->hdl, syncreset, 0x01); if (state) { /* unblank screen */ val = vga_ts_read(&vc->hdl, mode); vga_ts_write(&vc->hdl, mode, val & ~VGA_TS_MODE_BLANK); #ifndef VGA_NO_VBLANK val = vga_6845_read(&vc->hdl, mode); vga_6845_write(&vc->hdl, mode, val | 0x80); #endif } else { /* blank screen */ val = vga_ts_read(&vc->hdl, mode); vga_ts_write(&vc->hdl, mode, val | VGA_TS_MODE_BLANK); #ifndef VGA_NO_VBLANK val = vga_6845_read(&vc->hdl, mode); vga_6845_write(&vc->hdl, mode, val & ~0x80); #endif } vga_ts_write(&vc->hdl, syncreset, 0x03); } int vga_raster_ioctl(void *v, u_long cmd, caddr_t data, int flag, struct proc *p) { struct vga_config *vc = v; const struct vga_funcs *vf = vc->vc_funcs; switch (cmd) { case WSDISPLAYIO_GTYPE: *(int *)data = vc->vc_type; return 0; case WSDISPLAYIO_GINFO: /* XXX should get detailed hardware information here */ return EPASSTHROUGH; case WSDISPLAYIO_GVIDEO: #if 1 *(int *)data = (vga_get_video(vc) ? WSDISPLAYIO_VIDEO_ON : WSDISPLAYIO_VIDEO_OFF); return 0; #endif case WSDISPLAYIO_SVIDEO: #if 1 vga_set_video(vc, *(int *)data == WSDISPLAYIO_VIDEO_ON); return 0; #endif case WSDISPLAYIO_GETCMAP: case WSDISPLAYIO_PUTCMAP: 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 EPASSTHROUGH; } if (vc->vc_funcs == NULL) return (EPASSTHROUGH); if (vf->vf_ioctl == NULL) return (EPASSTHROUGH); return ((*vf->vf_ioctl)(v, cmd, data, flag, p)); } static paddr_t vga_raster_mmap(void *v, off_t offset, int prot) { struct vga_config *vc = v; const struct vga_funcs *vf = vc->vc_funcs; if (vc->vc_funcs == NULL) return (-1); if (vf->vf_mmap == NULL) return (-1); return ((*vf->vf_mmap)(v, offset, prot)); } int vga_raster_alloc_screen(void *v, const struct wsscreen_descr *type, void **cookiep, int *curxp, int *curyp, long *defattrp) { struct vga_config *vc = v; struct vgascreen *scr; if (vc->nscreens == 1) { vc->screens.lh_first->mem = boot_scrmem; } scr = malloc(sizeof(struct vgascreen), M_DEVBUF, M_WAITOK); vga_raster_init_screen(vc, scr, type, vc->nscreens == 0, defattrp); if (vc->nscreens == 1) { scr->active = 1; vc->active = scr; vc->currenttype = type; } else { scr->mem = malloc(sizeof(struct vga_scrmem) * type->ncols * type->nrows, M_DEVBUF, M_WAITOK); vga_raster_eraserows(scr, 0, type->nrows, *defattrp); } *cookiep = scr; *curxp = scr->cursorcol; *curyp = scr->cursorrow; return (0); } void vga_raster_free_screen(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_raster_free_screen: console"); if (vc->active == vs) vc->active = 0; } int vga_raster_show_screen(void *v, void *cookie, int waitok, void (*cb)(void *, int, int), void *cbarg) { struct vgascreen *scr = cookie, *oldscr; struct vga_config *vc = scr->cfg; oldscr = vc->active; /* can be NULL! */ if (scr == oldscr) { return (0); } vc->wantedscreen = cookie; vc->switchcb = cb; vc->switchcbarg = cbarg; if (cb) { callout_reset(&vc->vc_switch_callout, 0, (void(*)(void *))vga_switch_screen, vc); return (EAGAIN); } vga_switch_screen(vc); return (0); } void vga_switch_screen(struct vga_config *vc) { struct vgascreen *scr, *oldscr; struct vga_handle *vh = &vc->hdl; const struct wsscreen_descr *type; scr = vc->wantedscreen; if (!scr) { printf("vga_switch_screen: disappeared\n"); (*vc->switchcb)(vc->switchcbarg, EIO, 0); return; } type = scr->type; oldscr = vc->active; /* can be NULL! */ #ifdef DIAGNOSTIC if (oldscr) { if (!oldscr->active) panic("vga_raster_show_screen: not active"); if (oldscr->type != vc->currenttype) panic("vga_raster_show_screen: bad type"); } #endif if (scr == oldscr) { return; } #ifdef DIAGNOSTIC if (scr->active) panic("vga_raster_show_screen: active"); #endif if (oldscr) oldscr->active = 0; if (vc->currenttype != type) { vga_raster_setscreentype(vc, type); vc->currenttype = type; } scr->dispoffset = scr->mindispoffset; if (!oldscr || (scr->dispoffset != oldscr->dispoffset)) { vga_6845_write(vh, startadrh, scr->dispoffset >> 8); vga_6845_write(vh, startadrl, scr->dispoffset); } /* Clear the entire screen. */ vga_gdc_write(vh, mode, 0x02); bus_space_set_region_4(vh->vh_memt, vh->vh_allmemh, 0, 0, 0x2000); scr->active = 1; vga_restore_screen(scr, type, scr->mem); vc->active = scr; vga_raster_cursor(scr, scr->cursoron, scr->cursorrow, scr->cursorcol); vc->wantedscreen = 0; if (vc->switchcb) (*vc->switchcb)(vc->switchcbarg, 0, 0); } static int vga_raster_load_font(void *v, void *id, struct wsdisplay_font *data) { /* XXX */ printf("vga_raster_load_font: called\n"); return (0); } void vga_raster_setup_font(struct vga_config *vc, struct vgascreen *scr) { struct vga_raster_font *vf; struct wsdisplay_font *wf; int cookie; LIST_FOREACH(vf, &vc->vc_fontlist, next) { if (wsfont_matches(vf->font, 0, 0, scr->type->fontheight, 0)) { scr->encoding = vf->font->encoding; LIST_INSERT_HEAD(&scr->fontset, vf, next); return; } } cookie = wsfont_find(NULL, 0, scr->type->fontheight, 0, WSDISPLAY_FONTORDER_L2R, 0); if (cookie == -1) return; if (wsfont_lock(cookie, &wf)) return; vf = malloc(sizeof(struct vga_raster_font), M_DEVBUF, M_NOWAIT); if (!vf) { wsfont_unlock(cookie); return; } vf->font = wf; scr->encoding = vf->font->encoding; LIST_INSERT_HEAD(&scr->fontset, vf, next); } void vga_setup_regs(struct videomode *mode, struct vga_moderegs *regs) { int i; int depth = 4; /* XXXBJY hardcoded for now */ const u_int8_t palette[] = { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x14, 0x07, 0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f }; /* * Compute hsync and vsync polarity. */ if ((mode->flags & (VID_PHSYNC | VID_NHSYNC)) && (mode->flags & (VID_PVSYNC | VID_NVSYNC))) { regs->miscout = 0x23; if (mode->flags & VID_NHSYNC) regs->miscout |= 0x40; if (mode->flags & VID_NVSYNC) regs->miscout |= 0x80; } else { if (mode->flags & VID_DBLSCAN) mode->vdisplay *= 2; if (mode->vdisplay < 400) regs->miscout = 0xa3; else if (mode->vdisplay < 480) regs->miscout = 0x63; else if (mode->vdisplay < 768) regs->miscout = 0xe3; else regs->miscout = 0x23; } /* * Time sequencer */ if (depth == 4) regs->ts[0] = 0x02; else regs->ts[0] = 0x00; if (mode->flags & VID_CLKDIV2) regs->ts[1] = 0x09; else regs->ts[1] = 0x01; regs->ts[2] = 0x0f; regs->ts[3] = 0x00; if (depth < 8) regs->ts[4] = 0x06; else regs->ts[4] = 0x0e; /* * CRTC controller */ regs->crtc[0] = (mode->htotal >> 3) - 5; regs->crtc[1] = (mode->hdisplay >> 3) - 1; regs->crtc[2] = (mode->hsync_start >> 3) - 1; regs->crtc[3] = (((mode->hsync_end >> 3) - 1) & 0x1f) | 0x80; regs->crtc[4] = mode->hsync_start >> 3; regs->crtc[5] = ((((mode->hsync_end >> 3) - 1) & 0x20) << 2) | (((mode->hsync_end >> 3)) & 0x1f); regs->crtc[6] = (mode->vtotal - 2) & 0xff; regs->crtc[7] = (((mode->vtotal - 2) & 0x100) >> 8) | (((mode->vdisplay - 1) & 0x100) >> 7) | ((mode->vsync_start & 0x100) >> 6) | (((mode->vsync_start - 1) & 0x100) >> 5) | 0x10 | (((mode->vtotal - 2) & 0x200) >> 4) | (((mode->vdisplay - 1) & 0x200) >> 3) | ((mode->vsync_start & 0x200) >> 2); regs->crtc[8] = 0x00; regs->crtc[9] = (((mode->vsync_start - 1) & 0x200) >> 4) | 0x40; if (mode->flags & VID_DBLSCAN) regs->crtc[9] |= 0x80; regs->crtc[10] = 0x00; regs->crtc[11] = 0x00; regs->crtc[12] = 0x00; regs->crtc[13] = 0x00; regs->crtc[14] = 0x00; regs->crtc[15] = 0x00; regs->crtc[16] = mode->vsync_start & 0xff; regs->crtc[17] = (mode->vsync_end & 0x0f) | 0x20; regs->crtc[18] = (mode->vdisplay - 1) & 0xff; regs->crtc[19] = mode->hdisplay >> 4; /* XXXBJY */ regs->crtc[20] = 0x00; regs->crtc[21] = (mode->vsync_start - 1) & 0xff; regs->crtc[22] = (mode->vsync_end - 1) & 0xff; if (depth < 8) regs->crtc[23] = 0xe3; else regs->crtc[23] = 0xc3; regs->crtc[24] = 0xff; /* * Graphics display controller */ regs->gdc[0] = 0x00; regs->gdc[1] = 0x00; regs->gdc[2] = 0x00; regs->gdc[3] = 0x00; regs->gdc[4] = 0x00; if (depth == 4) regs->gdc[5] = 0x02; else regs->gdc[5] = 0x40; regs->gdc[6] = 0x01; regs->gdc[7] = 0x0f; regs->gdc[8] = 0xff; /* * Attribute controller */ /* Set palette registers. */ for (i = 0; i < 16; i++) regs->atc[i] = palette[i]; if (depth == 4) regs->atc[16] = 0x01; /* XXXBJY was 0x81 in XFree86 */ else regs->atc[16] = 0x41; regs->atc[17] = 0x00; /* XXXBJY just a guess */ regs->atc[18] = 0x0f; regs->atc[19] = 0x00; regs->atc[20] = 0x00; } void vga_set_mode(struct vga_handle *vh, struct vga_moderegs *regs) { int i; /* Disable display. */ vga_ts_write(vh, mode, vga_ts_read(vh, mode) | VGA_TS_MODE_BLANK); /* Write misc output register. */ bus_space_write_1(vh->vh_iot, vh->vh_ioh_vga, VGA_MISC_DATAW, regs->miscout); /* Set synchronous reset. */ vga_ts_write(vh, syncreset, 0x01); vga_ts_write(vh, mode, regs->ts[1] | VGA_TS_MODE_BLANK); for (i = 2; i < VGA_TS_NREGS; i++) _vga_ts_write(vh, i, regs->ts[i]); /* Clear synchronous reset. */ vga_ts_write(vh, syncreset, 0x03); /* Unprotect CRTC registers 0-7. */ vga_6845_write(vh, vsynce, vga_6845_read(vh, vsynce) & ~0x80); /* Write CRTC registers. */ for (i = 0; i < MC6845_NREGS; i++) _vga_6845_write(vh, i, regs->crtc[i]); /* Write graphics display registers. */ for (i = 0; i < VGA_GDC_NREGS; i++) _vga_gdc_write(vh, i, regs->gdc[i]); /* Write attribute controller registers. */ for (i = 0; i < VGA_ATC_NREGS; i++) _vga_attr_write(vh, i, regs->atc[i]); /* Enable display. */ vga_ts_write(vh, mode, vga_ts_read(vh, mode) & ~VGA_TS_MODE_BLANK); } void vga_raster_cursor_init(struct vgascreen *scr, int existing) { struct vga_handle *vh = scr->hdl; bus_space_tag_t memt; bus_space_handle_t memh; int off; if (existing) { /* * This is the first screen. At this point, scr->active is * false, so we can't use vga_raster_cursor() to do this. */ memt = vh->vh_memt; memh = vh->vh_memh; off = (scr->cursorrow * scr->type->ncols + scr->cursorcol) + scr->dispoffset / 8; scr->cursortmp = scr->mem[off]; vga_raster_putchar(scr, scr->cursorrow, scr->cursorcol, scr->cursortmp.ch, scr->cursortmp.attr ^ 0x77); } else { scr->cursortmp.ch = 0; scr->cursortmp.attr = 0; scr->cursortmp.second = 0; scr->cursortmp.enc = scr->encoding; } scr->cursoron = 1; } void vga_raster_cursor(void *id, int on, int row, int col) { struct vgascreen *scr = id; int off, tmp; /* Remove old cursor image */ if (scr->cursoron) { off = scr->cursorrow * scr->type->ncols + scr->cursorcol; if (scr->active) { tmp = scr->encoding; scr->encoding = scr->cursortmp.enc; if (scr->cursortmp.second) vga_raster_putchar(id, scr->cursorrow, scr->cursorcol - 1, scr->cursortmp.ch, scr->cursortmp.attr); else vga_raster_putchar(id, scr->cursorrow, scr->cursorcol, scr->cursortmp.ch, scr->cursortmp.attr); scr->encoding = tmp; } } scr->cursorrow = row; scr->cursorcol = col; if ((scr->cursoron = on) == 0) return; off = scr->cursorrow * scr->type->ncols + scr->cursorcol; scr->cursortmp = scr->mem[off]; if (scr->active) { tmp = scr->encoding; scr->encoding = scr->cursortmp.enc; if (scr->cursortmp.second) vga_raster_putchar(id, scr->cursorrow, scr->cursorcol - 1, scr->cursortmp.ch, scr->cursortmp.attr ^ 0x77); else vga_raster_putchar(id, scr->cursorrow, scr->cursorcol, scr->cursortmp.ch, scr->cursortmp.attr ^ 0x77); scr->encoding = tmp; } } static int vga_raster_mapchar(void *id, int uni, u_int *index) { struct vgascreen *scr = id; if (scr->encoding == WSDISPLAY_FONTENC_IBM) return pcdisplay_mapchar(id, uni, index); else { *index = uni; return 5; } } void vga_raster_putchar(void *id, int row, int col, u_int c, long attr) { struct vgascreen *scr = id; int off; struct vga_raster_font *fs; u_int tmp_ch; off = row * scr->type->ncols + col; LIST_FOREACH(fs, &scr->fontset, next) { if ((scr->encoding == fs->font->encoding) && (c >= fs->font->firstchar) && (c < fs->font->firstchar + fs->font->numchars) && (scr->type->fontheight == fs->font->fontheight)) { if (scr->active) { tmp_ch = c - fs->font->firstchar; _vga_raster_putchar(scr, row, col, tmp_ch, attr, fs); } scr->mem[off].ch = c; scr->mem[off].attr = attr; scr->mem[off].second = 0; scr->mem[off].enc = fs->font->encoding; if (fs->font->stride == 2) { scr->mem[off + 1].ch = c; scr->mem[off + 1].attr = attr; scr->mem[off + 1].second = 1; scr->mem[off + 1].enc = fs->font->encoding; } return; } } /* * No match found. */ if (scr->active) /* * Put a single width space character no matter what the * actual width of the character is. */ _vga_raster_putchar(scr, row, col, ' ', attr, &vga_console_fontset_ascii); scr->mem[off].ch = c; scr->mem[off].attr = attr; scr->mem[off].second = 0; scr->mem[off].enc = scr->encoding; } static void _vga_raster_putchar(void *id, int row, int col, u_int c, long attr, struct vga_raster_font *fs) { struct vgascreen *scr = id; struct vga_handle *vh = scr->hdl; bus_space_tag_t memt = vh->vh_memt; bus_space_handle_t memh = vh->vh_memh; int i; int rasoff, rasoff2; int fheight = scr->type->fontheight; volatile u_int8_t dummy, pattern; u_int8_t fgcolor, bgcolor; rasoff = scr->dispoffset + row * scr->type->ncols * fheight + col; rasoff2 = rasoff; #if 0 bgcolor = bgansitopc[attr >> 4]; fgcolor = fgansitopc[attr & 0x0f]; #else bgcolor = ((attr >> 4) & 0x0f); fgcolor = attr & 0x0f; #endif if (fs->font->stride == 1) { /* Paint background. */ vga_gdc_write(vh, mode, 0x02); for (i = 0; i < fheight; i++) { bus_space_write_1(memt, memh, rasoff, bgcolor); rasoff += scr->type->ncols; } /* Draw a single width character. */ vga_gdc_write(vh, mode, 0x03); vga_gdc_write(vh, setres, fgcolor); for (i = 0; i < fheight; i++) { pattern = ((u_int8_t *)fs->font->data)[c * fheight + i]; /* When pattern is 0, skip output for speed-up. */ if (pattern != 0) { dummy = bus_space_read_1(memt, memh, rasoff2); bus_space_write_1(memt, memh, rasoff2, pattern); } rasoff2 += scr->type->ncols; } } else if (fs->font->stride == 2) { /* Paint background. */ vga_gdc_write(vh, mode, 0x02); for (i = 0; i < fheight; i++) { bus_space_write_1(memt, memh, rasoff, bgcolor); bus_space_write_1(memt, memh, rasoff + 1, bgcolor); rasoff += scr->type->ncols; } /* Draw a double width character. */ vga_gdc_write(vh, mode, 0x03); vga_gdc_write(vh, setres, fgcolor); for (i = 0; i < fheight; i++) { pattern = ((u_int8_t *)fs->font->data) [(c * fheight + i) * 2]; if (pattern != 0) { dummy = bus_space_read_1(memt, memh, rasoff2); bus_space_write_1(memt, memh, rasoff2, pattern); } pattern = ((u_int8_t *)fs->font->data) [(c * fheight + i) * 2 + 1]; if (pattern != 0) { rasoff2++; dummy = bus_space_read_1(memt, memh, rasoff2); bus_space_write_1(memt, memh, rasoff2, pattern); rasoff2--; } rasoff2 += scr->type->ncols; } } } void vga_raster_copycols(void *id, int row, int srccol, int dstcol, int ncols) { struct vgascreen *scr = id; struct vga_handle *vh = scr->hdl; bus_space_tag_t memt = vh->vh_memt; bus_space_handle_t memh = vh->vh_memh; bus_size_t srcoff, dstoff; bus_size_t rassrcoff, rasdstoff; int i; int fheight = scr->type->fontheight; srcoff = row * scr->type->ncols + srccol; dstoff = row * scr->type->ncols + dstcol; rassrcoff = scr->dispoffset + row * scr->type->ncols * fheight + srccol; rasdstoff = scr->dispoffset + row * scr->type->ncols * fheight + dstcol; memcpy(&scr->mem[dstoff], &scr->mem[srcoff], ncols * sizeof(struct vga_scrmem)); vga_gdc_write(vh, mode, 0x01); if (scr->active) { for (i = 0; i < fheight; i++) { bus_space_copy_region_1(memt, memh, rassrcoff + i * scr->type->ncols, memh, rasdstoff + i * scr->type->ncols, ncols); } } } void vga_raster_erasecols(void *id, int row, int startcol, int ncols, long fillattr) { struct vgascreen *scr = id; int i; if (scr->active == 0) return; for (i = startcol; i < startcol + ncols; i++) vga_raster_putchar(id, row, i, ' ', fillattr); } void vga_raster_copyrows(void *id, int srcrow, int dstrow, int nrows) { struct vgascreen *scr = id; struct vga_handle *vh = scr->hdl; bus_space_tag_t memt = vh->vh_memt; bus_space_handle_t memh = vh->vh_memh; int ncols; bus_size_t srcoff, dstoff; bus_size_t rassrcoff, rasdstoff; int fheight; ncols = scr->type->ncols; fheight = scr->type->fontheight; srcoff = srcrow * ncols; dstoff = dstrow * ncols; rassrcoff = srcoff * fheight; rasdstoff = dstoff * fheight; if (scr->active) { vga_gdc_write(vh, mode, 0x01); if (dstrow == 0 && (srcrow + nrows == scr->type->nrows)) { int cursoron = scr->cursoron; if (cursoron) /* Disable cursor. */ vga_raster_cursor(scr, 0, scr->cursorrow, scr->cursorcol); /* scroll up whole screen */ if ((scr->dispoffset + srcrow * ncols * fheight) <= scr->maxdispoffset) scr->dispoffset += srcrow * ncols * fheight; else { bus_space_copy_region_1(memt, memh, scr->dispoffset + rassrcoff, memh, scr->mindispoffset, nrows * ncols * fheight); scr->dispoffset = scr->mindispoffset; } vga_6845_write(vh, startadrh, scr->dispoffset >> 8); vga_6845_write(vh, startadrl, scr->dispoffset); if (cursoron) /* Enable cursor. */ vga_raster_cursor(scr, 1, scr->cursorrow, scr->cursorcol); } else bus_space_copy_region_1(memt, memh, scr->dispoffset + rassrcoff, memh, scr->dispoffset + rasdstoff, nrows * ncols * fheight); } memcpy(&scr->mem[dstoff], &scr->mem[srcoff], nrows * ncols * sizeof(struct vga_scrmem)); } void vga_raster_eraserows(void *id, int startrow, int nrows, long fillattr) { struct vgascreen *scr = id; struct vga_handle *vh = scr->hdl; bus_space_tag_t memt = vh->vh_memt; bus_space_handle_t memh = vh->vh_memh; bus_size_t off, count; bus_size_t rasoff, rascount; int i; off = startrow * scr->type->ncols; count = nrows * scr->type->ncols; rasoff = off * scr->type->fontheight; rascount = count * scr->type->fontheight; if (scr->active) { u_int8_t bgcolor = (fillattr >> 4) & 0x0F; /* Paint background. */ vga_gdc_write(vh, mode, 0x02); if (scr->type->ncols % 4 == 0) { u_int32_t fill = bgcolor | (bgcolor << 8) | (bgcolor << 16) | (bgcolor << 24); /* We can speed up I/O */ for (i = rasoff; i < rasoff + rascount; i += 4) bus_space_write_4(memt, memh, scr->dispoffset + i, fill); } else { u_int16_t fill = bgcolor | (bgcolor << 8); for (i = rasoff; i < rasoff + rascount; i += 2) bus_space_write_2(memt, memh, scr->dispoffset + i, fill); } } for (i = 0; i < count; i++) { scr->mem[off + i].ch = ' '; scr->mem[off + i].attr = fillattr; scr->mem[off + i].second = 0; scr->mem[off + i].enc = scr->encoding; } } static int vga_raster_allocattr(void *id, int fg, int 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_restore_screen(struct vgascreen *scr, const struct wsscreen_descr *type, struct vga_scrmem *mem) { int i, j, off, tmp; tmp = scr->encoding; for (i = 0; i < type->nrows; i++) { for (j = 0; j < type->ncols; j++) { off = i * type->ncols + j; if (mem[off].second != 1) { scr->encoding = mem[off].enc; vga_raster_putchar(scr, i, j, mem[off].ch, mem[off].attr); } } } scr->encoding = tmp; } void vga_raster_setscreentype(struct vga_config *vc, const struct wsscreen_descr *type) { struct vga_handle *vh = &vc->hdl; struct vga_moderegs moderegs; vga_setup_regs((struct videomode *)type->modecookie, &moderegs); vga_set_mode(vh, &moderegs); } #ifdef WSDISPLAY_CUSTOM_OUTPUT void vga_raster_replaceattr(void *id, long oldattr, long newattr) { struct vgascreen *scr = id; const struct wsscreen_descr *type = scr->type; int off; for (off = 0; off < type->nrows * type->ncols; off++) { if (scr->mem[off].attr == oldattr) scr->mem[off].attr = newattr; } /* Repaint the whole screen, if needed */ if (scr->active) vga_restore_screen(scr, type, scr->mem); } #endif /* WSDISPLAY_CUSTOM_OUTPUT */