/* $NetBSD: cgfour.c,v 1.52 2026/05/25 13:47:08 christos Exp $ */ /*- * Copyright (c) 1996, 1997 The NetBSD Foundation, Inc. * All rights reserved. * * This code is derived from software contributed to The NetBSD Foundation * by Jason R. Thorpe. * * 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. * * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS * ``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 FOUNDATION OR CONTRIBUTORS * 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) 1992, 1993 * The Regents of the University of California. All rights reserved. * * This software was developed by the Computer Systems Engineering group * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and * contributed to Berkeley. * * All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the University of * California, Lawrence Berkeley Laboratory. * * 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. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 REGENTS OR CONTRIBUTORS 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. * * from @(#)cgthree.c 8.2 (Berkeley) 10/30/93 */ /* * Copyright (c) 1995 Theo de Raadt. 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. * * 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. */ /* * color display (cgfour) driver. * * Does not handle interrupts, even though they can occur. * * XXX should defer colormap updates to vertical retrace interrupts */ #include "wsdisplay.h" #include __KERNEL_RCSID(0, "$NetBSD: cgfour.c,v 1.52 2026/05/25 13:47:08 christos Exp $"); #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #if NWSDISPLAY > 0 #include #include #include #include #include "opt_wsemul.h" #endif #define CGFOUR_OVERLAY_SIZE 0x20000 #define CGFOUR_RAM_SIZE 0x100000 /* All our cgfour's are 1MB */ /* per-display variables */ struct cgfour_softc { struct fbdevice sc_fb; /* frame buffer device */ bus_space_tag_t sc_bustag; bus_addr_t sc_paddr; /* phys address for device mmap() */ volatile struct fbcontrol *sc_fbc; /* Brooktree registers */ #if NWSDISPLAY > 0 uint32_t sc_width; uint32_t sc_height; /* display width / height */ uint32_t sc_stride; int sc_mode; struct vcons_data sc_vd; char *sc_overlay; char *sc_enable; #endif union bt_cmap sc_cmap; /* Brooktree color map */ }; /* autoconfiguration driver */ static int cgfourmatch(device_t, cfdata_t, void *); static void cgfourattach(device_t, device_t, void *); #if defined(SUN4) static void cgfourunblank(device_t); #endif static int cg4_pfour_probe(void *, void *); CFATTACH_DECL_NEW(cgfour, sizeof(struct cgfour_softc), cgfourmatch, cgfourattach, NULL, NULL); extern struct cfdriver cgfour_cd; dev_type_open(cgfouropen); dev_type_ioctl(cgfourioctl); dev_type_mmap(cgfourmmap); const struct cdevsw cgfour_cdevsw = { .d_open = cgfouropen, .d_close = nullclose, .d_read = noread, .d_write = nowrite, .d_ioctl = cgfourioctl, .d_stop = nostop, .d_tty = notty, .d_poll = nopoll, .d_mmap = cgfourmmap, .d_kqfilter = nokqfilter, .d_discard = nodiscard, .d_flag = 0 }; #if defined(SUN4) /* frame buffer generic driver */ static struct fbdriver cgfourfbdriver = { cgfourunblank, cgfouropen, nullclose, cgfourioctl, nopoll, cgfourmmap, nokqfilter }; static void cgfourloadcmap(struct cgfour_softc *, int, int); static int cgfour_get_video(struct cgfour_softc *); static void cgfour_set_video(struct cgfour_softc *, int); #if NWSDISPLAY > 0 static void cgfour_setup_palette(struct cgfour_softc *); struct wsscreen_descr cgfour_defaultscreen = { "std", 0, 0, /* will be filled in -- XXX shouldn't, it's global */ NULL, /* textops */ 8, 16, /* font width/height */ WSSCREEN_WSCOLORS, /* capabilities */ NULL /* modecookie */ }; static int cgfour_ioctl(void *, void *, u_long, void *, int, struct lwp *); static paddr_t cgfour_mmap(void *, void *, off_t, int); static void cgfour_init_screen(void *, struct vcons_screen *, int, long *); static void cgfour_clear_screen(struct cgfour_softc *, int); static int cgfour_putcmap(struct cgfour_softc *, struct wsdisplay_cmap *); static int cgfour_getcmap(struct cgfour_softc *, struct wsdisplay_cmap *); struct wsdisplay_accessops cgfour_accessops = { .ioctl = cgfour_ioctl, .mmap = cgfour_mmap, .alloc_screen = NULL, .free_screen = NULL, .show_screen = NULL, .load_font = NULL, .pollc = NULL, .scroll = NULL }; const struct wsscreen_descr *_cgfour_scrlist[] = { &cgfour_defaultscreen }; struct wsscreen_list cgfour_screenlist = { .nscreens = sizeof(_cgfour_scrlist) / sizeof(struct wsscreen_descr *), .screens = _cgfour_scrlist }; static struct vcons_screen cgfour_console_screen; #endif /* NWSDISPLAY > 0 */ #endif /* SUN4 */ /* * Match a cgfour. */ static int cgfourmatch(device_t parent, cfdata_t cf, void *aux) { union obio_attach_args *uoba = aux; struct obio4_attach_args *oba; if (uoba->uoba_isobio4 == 0) return (0); oba = &uoba->uoba_oba4; return (bus_space_probe(oba->oba_bustag, oba->oba_paddr, 4, /* probe size */ 0, /* offset */ 0, /* flags */ cg4_pfour_probe, NULL)); } static int cg4_pfour_probe(void *vaddr, void *arg) { return (fb_pfour_id(vaddr) == PFOUR_ID_COLOR8P1); } /* * Attach a display. We need to notice if it is the console, too. */ static void cgfourattach(device_t parent, device_t self, void *aux) { #if defined(SUN4) struct cgfour_softc *sc = device_private(self); union obio_attach_args *uoba = aux; struct obio4_attach_args *oba = &uoba->uoba_oba4; bus_space_handle_t bh; volatile struct bt_regs *bt; struct fbdevice *fb = &sc->sc_fb; int i, isconsole; #if NWSDISPLAY > 0 struct wsemuldisplaydev_attach_args wsemul_aa; struct rasops_info *ri = &cgfour_console_screen.scr_ri; unsigned long defattr = 0; #endif sc->sc_bustag = oba->oba_bustag; sc->sc_paddr = (bus_addr_t)oba->oba_paddr; /* Map the pfour register. */ if (bus_space_map(oba->oba_bustag, oba->oba_paddr, sizeof(uint32_t), BUS_SPACE_MAP_LINEAR, &bh) != 0) { printf("%s: cannot map control registers\n", device_xname(self)); return; } fb->fb_pfour = (volatile uint32_t *)bh; fb->fb_driver = &cgfourfbdriver; fb->fb_device = self; fb->fb_type.fb_type = FBTYPE_SUN4COLOR; fb->fb_flags = device_cfdata(self)->cf_flags & FB_USERMASK; fb->fb_flags |= FB_PFOUR; fb->fb_type.fb_depth = 8; fb_setsize_eeprom(fb, fb->fb_type.fb_depth, 1152, 900); fb->fb_type.fb_cmsize = 256; fb->fb_type.fb_size = CGFOUR_RAM_SIZE; printf(": cgfour/p4, %d x %d", fb->fb_type.fb_width, fb->fb_type.fb_height); isconsole = 0; if (CPU_ISSUN4) { struct eeprom *eep = (struct eeprom *)eeprom_va; /* * Assume this is the console if there's no eeprom info * to be found. */ if (eep == NULL || eep->eeConsole == EE_CONS_P4OPT) isconsole = fb_is_console(0); } /* * When the ROM has mapped in a cgfour display, the address * maps only the video RAM, so in any case we have to map the * registers ourselves. */ if (isconsole) { /* Map the framebuffers. */ if (bus_space_map(oba->oba_bustag, oba->oba_paddr + PFOUR_COLOR_OFF_OVERLAY, CGFOUR_OVERLAY_SIZE, BUS_SPACE_MAP_LINEAR, &bh) != 0) { printf("%s: cannot map overlay plane\n", device_xname(self)); return; } sc->sc_overlay = (char *)bh; if (bus_space_map(oba->oba_bustag, oba->oba_paddr + PFOUR_COLOR_OFF_ENABLE, CGFOUR_OVERLAY_SIZE, BUS_SPACE_MAP_LINEAR, &bh) != 0) { printf("%s: cannot map enable plane\n", device_xname(self)); return; } sc->sc_enable = (char *)bh; if (bus_space_map(oba->oba_bustag, oba->oba_paddr + PFOUR_COLOR_OFF_COLOR, CGFOUR_RAM_SIZE, BUS_SPACE_MAP_LINEAR, &bh) != 0) { printf("%s: cannot map pixels\n", device_xname(self)); return; } fb->fb_pixels = (char *)bh; } /* Map the Brooktree. */ if (bus_space_map(oba->oba_bustag, oba->oba_paddr + PFOUR_COLOR_OFF_CMAP, sizeof(struct fbcontrol), BUS_SPACE_MAP_LINEAR, &bh) != 0) { printf("%s: cannot map control registers\n", device_xname(self)); return; } sc->sc_fbc = (volatile struct fbcontrol *)bh; /* grab initial (current) color map */ bt = &sc->sc_fbc->fbc_dac; bt->bt_addr = 0; for (i = 0; i < 256 * 3 / 4; i++) ((char *)&sc->sc_cmap)[i] = bt->bt_cmap >> 24; BT_INIT(bt, 24); if (isconsole) { printf(" (console)\n"); } else printf("\n"); /* * Even though we're not using rconsole, we'd still like * to notice if we're the console framebuffer. */ fb_attach(fb, isconsole); #if NWSDISPLAY > 0 sc->sc_width = fb->fb_type.fb_width; sc->sc_stride = fb->fb_type.fb_width; sc->sc_height = fb->fb_type.fb_height; /* setup rasops and so on for wsdisplay */ sc->sc_mode = WSDISPLAYIO_MODE_EMUL; vcons_init(&sc->sc_vd, sc, &cgfour_defaultscreen, &cgfour_accessops); sc->sc_vd.init_screen = cgfour_init_screen; if (isconsole) { /* we mess with cgfour_console_screen only once */ vcons_init_screen(&sc->sc_vd, &cgfour_console_screen, 1, &defattr); cgfour_clear_screen(sc, (defattr >> 16) & 0xff); cgfour_console_screen.scr_flags |= VCONS_SCREEN_IS_STATIC; cgfour_defaultscreen.textops = &ri->ri_ops; cgfour_defaultscreen.capabilities = ri->ri_caps; cgfour_defaultscreen.nrows = ri->ri_rows; cgfour_defaultscreen.ncols = ri->ri_cols; SCREEN_VISIBLE(&cgfour_console_screen); sc->sc_vd.active = &cgfour_console_screen; wsdisplay_cnattach(&cgfour_defaultscreen, ri, 0, 0, defattr); vcons_replay_msgbuf(&cgfour_console_screen); } else { /* * we're not the console so we just clear the screen and don't * set up any sort of text display */ } /* Initialize the default color map. */ cgfour_setup_palette(sc); wsemul_aa.scrdata = &cgfour_screenlist; wsemul_aa.console = isconsole; wsemul_aa.accessops = &cgfour_accessops; wsemul_aa.accesscookie = &sc->sc_vd; config_found(self, &wsemul_aa, wsemuldisplaydevprint, CFARGS_NONE); #endif /* NWSDISPLAY > 0 */ #endif /* SUN4 */ } int cgfouropen(dev_t dev, int flags, int mode, struct lwp *l) { int unit = minor(dev); if (device_lookup(&cgfour_cd, unit) == NULL) return (ENXIO); return (0); } int cgfourioctl(dev_t dev, u_long cmd, void *data, int flags, struct lwp *l) { #if defined(SUN4) struct cgfour_softc *sc = device_lookup_private(&cgfour_cd, minor(dev)); struct fbgattr *fba; int error; switch (cmd) { case FBIOGTYPE: *(struct fbtype *)data = sc->sc_fb.fb_type; break; case FBIOGATTR: fba = (struct fbgattr *)data; fba->real_type = sc->sc_fb.fb_type.fb_type; fba->owner = 0; /* XXX ??? */ fba->fbtype = sc->sc_fb.fb_type; fba->sattr.flags = 0; fba->sattr.emu_type = sc->sc_fb.fb_type.fb_type; fba->sattr.dev_specific[0] = -1; fba->emu_types[0] = sc->sc_fb.fb_type.fb_type; fba->emu_types[1] = -1; break; case FBIOGETCMAP: #define p ((struct fbcmap *)data) return (bt_getcmap(p, &sc->sc_cmap, 256, 1)); case FBIOPUTCMAP: /* copy to software map */ error = bt_putcmap(p, &sc->sc_cmap, 256, 1); if (error) return (error); /* now blast them into the chip */ /* XXX should use retrace interrupt */ cgfourloadcmap(sc, p->index, p->count); #undef p break; case FBIOGVIDEO: *(int *)data = cgfour_get_video(sc); break; case FBIOSVIDEO: cgfour_set_video(sc, *(int *)data); break; default: return (ENOTTY); } #endif /* SUN4 */ return (0); } /* * Return the address that would map the given device at the given * offset, allowing for the given protection, or return -1 for error. * * the cg4 maps its overlay plane for 128K, followed by the enable * plane for 128K, followed by the colour plane (for as much colour * as their is.) * * As well, mapping at an offset of 0x04000000 causes the cg4 to map * only its colour plane, at 0. */ paddr_t cgfourmmap(dev_t dev, off_t off, int prot) { struct cgfour_softc *sc = device_lookup_private(&cgfour_cd, minor(dev)); off_t poff; #define START_ENABLE (128*1024) #define START_COLOR ((128*1024) + (128*1024)) #define COLOR_SIZE (sc->sc_fb.fb_type.fb_width * \ sc->sc_fb.fb_type.fb_height) #define END_COLOR (START_COLOR + COLOR_SIZE) #define NOOVERLAY (0x04000000) if (off & PGOFSET) panic("cgfourmap"); if (off < 0) return (-1); else if ((u_int)off >= NOOVERLAY) { off -= NOOVERLAY; /* * X11 maps a huge chunk of the frame buffer; far more than * there really is. We compensate by double-mapping the * first page for as many other pages as it wants */ while ((u_int)off >= COLOR_SIZE) off -= COLOR_SIZE; /* XXX thorpej ??? */ poff = off + PFOUR_COLOR_OFF_COLOR; } else if ((u_int)off < START_ENABLE) { /* * in overlay plane */ poff = PFOUR_COLOR_OFF_OVERLAY + off; } else if ((u_int)off < START_COLOR) { /* * in enable plane */ poff = (off - START_ENABLE) + PFOUR_COLOR_OFF_ENABLE; } else if ((u_int)off < sc->sc_fb.fb_type.fb_size) { /* * in colour plane */ poff = (off - START_COLOR) + PFOUR_COLOR_OFF_COLOR; } else return (-1); return (bus_space_mmap(sc->sc_bustag, sc->sc_paddr, poff, prot, BUS_SPACE_MAP_LINEAR)); } #if defined(SUN4) /* * Undo the effect of an FBIOSVIDEO that turns the video off. */ static void cgfourunblank(device_t dev) { cgfour_set_video(device_private(dev), 1); } static int cgfour_get_video(struct cgfour_softc *sc) { return (fb_pfour_get_video(&sc->sc_fb)); } static void cgfour_set_video(struct cgfour_softc *sc, int enable) { fb_pfour_set_video(&sc->sc_fb, enable); } /* * Load a subset of the current (new) colormap into the Brooktree DAC. */ static void cgfourloadcmap(struct cgfour_softc *sc, int start, int ncolors) { volatile struct bt_regs *bt; u_int *ip, i; int count; ip = &sc->sc_cmap.cm_chip[BT_D4M3(start)]; /* start/4 * 3 */ count = BT_D4M3(start + ncolors - 1) - BT_D4M3(start) + 3; bt = &sc->sc_fbc->fbc_dac; bt->bt_addr = BT_D4M4(start) << 24; while (--count >= 0) { i = *ip++; /* hardware that makes one want to pound boards with hammers */ bt->bt_cmap = i; bt->bt_cmap = i << 8; bt->bt_cmap = i << 16; bt->bt_cmap = i << 24; } } #if NWSDISPLAY > 0 static void cgfour_setup_palette(struct cgfour_softc *sc) { int i, j; j = 0; for (i = 0; i < 256; i++) { sc->sc_cmap.cm_map[i][0] = rasops_cmap[j]; j++; sc->sc_cmap.cm_map[i][1] = rasops_cmap[j]; j++; sc->sc_cmap.cm_map[i][2] = rasops_cmap[j]; j++; } cgfourloadcmap(sc, 0, 256); } static int cgfour_ioctl(void *v, void *vs, u_long cmd, void *data, int flag, struct lwp *l) { /* we'll probably need to add more stuff here */ struct vcons_data *vd = v; struct cgfour_softc *sc = vd->cookie; struct wsdisplay_fbinfo *wdf; struct vcons_screen *ms = sc->sc_vd.active; struct rasops_info *ri = &ms->scr_ri; switch (cmd) { case WSDISPLAYIO_GTYPE: *(u_int *)data = WSDISPLAY_TYPE_SUNTCX; /* XXX */ return 0; case WSDISPLAYIO_GINFO: wdf = (void *)data; wdf->height = ri->ri_height; wdf->width = ri->ri_width; wdf->depth = 8; wdf->cmsize = 256; return 0; case WSDISPLAYIO_GETCMAP: return cgfour_getcmap(sc, (struct wsdisplay_cmap *)data); case WSDISPLAYIO_PUTCMAP: return cgfour_putcmap(sc, (struct wsdisplay_cmap *)data); case WSDISPLAYIO_SMODE: { int new_mode = *(int *)data; if (new_mode != sc->sc_mode) { sc->sc_mode = new_mode; if (new_mode == WSDISPLAYIO_MODE_EMUL) { cgfour_setup_palette(sc); cgfour_clear_screen(sc, 0xff); vcons_redraw_screen(ms); } } } return 0; case WSDISPLAYIO_GET_FBINFO: { struct wsdisplayio_fbinfo *fbi = data; return wsdisplayio_get_fbinfo(&ms->scr_ri, fbi); } } return EPASSTHROUGH; } static paddr_t cgfour_mmap(void *v, void *vs, off_t offset, int prot) { struct vcons_data *vd = v; struct cgfour_softc *sc = vd->cookie; paddr_t cookie = -1; switch (sc->sc_mode) { case WSDISPLAYIO_MODE_DUMBFB: if (offset >= 0 && offset <= sc->sc_fb.fb_type.fb_size) { cookie = bus_space_mmap(sc->sc_bustag, sc->sc_paddr, PFOUR_COLOR_OFF_COLOR + offset, prot, BUS_SPACE_MAP_LINEAR); } break; default: break; } return cookie; } static int cgfour_putcmap(struct cgfour_softc *sc, struct wsdisplay_cmap *cm) { u_int index = cm->index; u_int count = cm->count; int error,i; if (index >= 256 || count > 256 || index + count > 256) return EINVAL; for (i = 0; i < count; i++) { error = copyin(&cm->red[i], &sc->sc_cmap.cm_map[index + i][0], 1); if (error) return error; error = copyin(&cm->green[i], &sc->sc_cmap.cm_map[index + i][1], 1); if (error) return error; error = copyin(&cm->blue[i], &sc->sc_cmap.cm_map[index + i][2], 1); if (error) return error; } cgfourloadcmap(sc, index, count); return 0; } static int cgfour_getcmap(struct cgfour_softc *sc, struct wsdisplay_cmap *cm) { u_int index = cm->index; u_int count = cm->count; int error,i; if (index >= 256 || count > 256 || index + count > 256) return EINVAL; for (i = 0; i < count; i++) { error = copyout(&sc->sc_cmap.cm_map[index + i][0], &cm->red[i], 1); if (error) return error; error = copyout(&sc->sc_cmap.cm_map[index + i][1], &cm->green[i], 1); if (error) return error; error = copyout(&sc->sc_cmap.cm_map[index + i][2], &cm->blue[i], 1); if (error) return error; } return 0; } static void cgfour_init_screen(void *cookie, struct vcons_screen *scr, int existing, long *defattr) { struct cgfour_softc *sc = cookie; struct rasops_info *ri = &scr->scr_ri; scr->scr_flags |= VCONS_DONT_READ; ri->ri_depth = 8; ri->ri_width = sc->sc_width; ri->ri_height = sc->sc_height; ri->ri_stride = sc->sc_stride; ri->ri_flg = RI_CENTER; ri->ri_bits = sc->sc_fb.fb_pixels; rasops_init(ri, 0, 0); ri->ri_caps = WSSCREEN_WSCOLORS | WSSCREEN_REVERSE; rasops_reconfig(ri, sc->sc_height / ri->ri_font->fontheight, sc->sc_width / ri->ri_font->fontwidth); ri->ri_hw = scr; } static void cgfour_clear_screen(struct cgfour_softc *sc, int bg) { char *bits; /* We can write a maximum of 4 bytes at a time to the framebuffer. */ for (bits = (char *)sc->sc_enable; bits < (char *)sc->sc_enable + CGFOUR_OVERLAY_SIZE; bits += 4) memset(bits, 0x00, 4); for (bits = (char *)sc->sc_fb.fb_pixels; bits < (char *)sc->sc_fb.fb_pixels + sc->sc_stride * sc->sc_height; bits += 4) memset(bits, bg, 4); } #endif /* NWSDISPLAY > 0 */ #endif /* SUN4 */