/* $OpenBSD: cgtwo.c,v 1.37 2008/12/26 22:30:21 miod Exp $ */ /* $NetBSD: cgtwo.c,v 1.22 1997/05/24 20:16:12 pk Exp $ */ /* * Copyright (c) 2002 Miodrag Vallat. 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. * * * 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 */ /* * color display (cgtwo) driver. * * Does not handle interrupts, even though they can occur. * * XXX should defer colormap updates to vertical retrace interrupts */ #include #include #include #include #include #include #include #include #include #include #include #include #if defined(SUN4) #include #endif #include #include #include #include #include #include /* per-display variables */ struct cgtwo_softc { struct sunfb sc_sunfb; /* common base part */ struct rom_reg sc_phys; /* display RAM (phys addr) */ volatile struct cg2statusreg *sc_reg; /* CG2 control registers */ volatile u_short *sc_ppmask; volatile u_short *sc_cmap; #define sc_redmap(cmap) ((cmap)) #define sc_greenmap(cmap) ((cmap) + CG2_CMSIZE) #define sc_bluemap(cmap) ((cmap) + 2 * CG2_CMSIZE) }; void cgtwo_burner(void *, u_int, u_int); int cgtwo_getcmap(struct cgtwo_softc *, struct wsdisplay_cmap *); int cgtwo_ioctl(void *, u_long, caddr_t, int, struct proc *); paddr_t cgtwo_mmap(void *, off_t, int); int cgtwo_putcmap(struct cgtwo_softc *, struct wsdisplay_cmap *); void cgtwo_setcolor(void *, u_int, u_int8_t, u_int8_t, u_int8_t); struct wsdisplay_accessops cgtwo_accessops = { cgtwo_ioctl, cgtwo_mmap, NULL, /* alloc_screen */ NULL, /* free_screen */ NULL, /* show_screen */ NULL, /* load_font */ NULL, /* scrollback */ NULL, /* getchar */ cgtwo_burner, NULL /* pollc */ }; int cgtwomatch(struct device *, void *, void *); void cgtwoattach(struct device *, struct device *, void *); struct cfattach cgtwo_ca = { sizeof(struct cgtwo_softc), cgtwomatch, cgtwoattach }; struct cfdriver cgtwo_cd = { NULL, "cgtwo", DV_DULL }; int cgtwomatch(struct device *parent, void *vcf, void *aux) { struct cfdata *cf = vcf; struct confargs *ca = aux; struct romaux *ra = &ca->ca_ra; caddr_t tmp; if (strcmp(cf->cf_driver->cd_name, ra->ra_name)) return (0); if (!CPU_ISSUN4 || ca->ca_bustype != BUS_VME16) return (0); /* XXX - Must do our own mapping at CG2_CTLREG_OFF */ bus_untmp(); tmp = (caddr_t)mapdev(ra->ra_reg, TMPMAP_VA, CG2_CTLREG_OFF, NBPG); if (probeget(tmp, 2) != -1) return (1); return (0); } void cgtwoattach(struct device *parent, struct device *self, void *args) { struct cgtwo_softc *sc = (struct cgtwo_softc *)self; struct confargs *ca = args; int node = 0; int 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_COLOR) isconsole = 1; } /* * When the ROM has mapped in a cgtwo display, the address * maps only the video RAM, so in any case we have to map the * registers ourselves. */ sc->sc_phys = ca->ca_ra.ra_reg[0]; /* Apparently, the pixels are 32-bit data space */ sc->sc_phys.rr_iospace = PMAP_VME32; sc->sc_reg = (volatile struct cg2statusreg *) mapiodev(ca->ca_ra.ra_reg, CG2_ROPMEM_OFF + offsetof(struct cg2fb, status.reg), sizeof(struct cg2statusreg)); sc->sc_ppmask = (volatile u_short *) mapiodev(ca->ca_ra.ra_reg, CG2_ROPMEM_OFF + offsetof(struct cg2fb, ppmask.reg), sizeof(u_short)); sc->sc_cmap = (volatile u_short *) mapiodev(ca->ca_ra.ra_reg, CG2_ROPMEM_OFF + offsetof(struct cg2fb, redmap), 3 * CG2_CMSIZE * sizeof(u_short)); /* enable video */ *sc->sc_ppmask = 0xffff; /* enable all color planes... */ cgtwo_burner(sc, 1, 0); /* ... and video signals */ fb_setsize(&sc->sc_sunfb, 8, 1152, 900, node, ca->ca_bustype); sc->sc_sunfb.sf_ro.ri_bits = mapiodev(&sc->sc_phys, CG2_PIXMAP_OFF, round_page(sc->sc_sunfb.sf_fbsize)); sc->sc_sunfb.sf_ro.ri_hw = sc; printf(": %dx%d\n", sc->sc_sunfb.sf_width, sc->sc_sunfb.sf_height); fbwscons_init(&sc->sc_sunfb, isconsole); fbwscons_setcolormap(&sc->sc_sunfb, cgtwo_setcolor); if (isconsole) { fbwscons_console_init(&sc->sc_sunfb, -1); } fbwscons_attach(&sc->sc_sunfb, &cgtwo_accessops, isconsole); } int cgtwo_ioctl(void *v, u_long cmd, caddr_t data, int flags, struct proc *p) { struct cgtwo_softc *sc = v; struct wsdisplay_fbinfo *wdf; struct wsdisplay_cmap *cm; int error; switch (cmd) { case WSDISPLAYIO_GTYPE: *(u_int *)data = WSDISPLAY_TYPE_SUNCG2; break; case WSDISPLAYIO_GINFO: wdf = (struct wsdisplay_fbinfo *)data; wdf->height = sc->sc_sunfb.sf_height; wdf->width = sc->sc_sunfb.sf_width; wdf->depth = sc->sc_sunfb.sf_depth; wdf->cmsize = CG2_CMSIZE; break; case WSDISPLAYIO_LINEBYTES: *(u_int *)data = sc->sc_sunfb.sf_linebytes; break; case WSDISPLAYIO_GETCMAP: cm = (struct wsdisplay_cmap *)data; error = cgtwo_getcmap(sc, cm); if (error) return (error); break; case WSDISPLAYIO_PUTCMAP: cm = (struct wsdisplay_cmap *)data; error = cgtwo_putcmap(sc, cm); if (error) return (error); break; case WSDISPLAYIO_SVIDEO: case WSDISPLAYIO_GVIDEO: break; case WSDISPLAYIO_GCURPOS: case WSDISPLAYIO_SCURPOS: case WSDISPLAYIO_GCURMAX: case WSDISPLAYIO_GCURSOR: case WSDISPLAYIO_SCURSOR: default: return (-1); /* not supported yet */ } return (0); } paddr_t cgtwo_mmap(void *v, off_t offset, int prot) { struct cgtwo_softc *sc = v; if (offset & PGOFSET) return (-1); if (offset >= 0 && offset < sc->sc_sunfb.sf_fbsize) { return (REG2PHYS(&sc->sc_phys, CG2_PIXMAP_OFF + offset) | PMAP_NC); } return (-1); } void cgtwo_burner(void *v, u_int on, u_int flags) { struct cgtwo_softc *sc = v; int s; s = splhigh(); if (on) sc->sc_reg->video_enab = 1; else sc->sc_reg->video_enab = 0; splx(s); } int cgtwo_getcmap(struct cgtwo_softc *sc, struct wsdisplay_cmap *cmap) { u_int index = cmap->index, count = cmap->count, i; u_char red[CG2_CMSIZE], green[CG2_CMSIZE], blue[CG2_CMSIZE]; volatile u_short *hwcmap = sc->sc_cmap; int error; volatile u_short *p; if (index >= CG2_CMSIZE || count >= CG2_CMSIZE - index) return (EINVAL); while (sc->sc_reg->retrace == 0) DELAY(1); sc->sc_reg->update_cmap = 0; /* Copy hardware to local arrays. */ p = &sc_redmap(hwcmap)[index]; for (i = 0; i < count; i++) red[i] = *p++; p = &sc_greenmap(hwcmap)[index]; for (i = 0; i < count; i++) green[i] = *p++; p = &sc_bluemap(hwcmap)[index]; for (i = 0; i < count; i++) blue[i] = *p++; sc->sc_reg->update_cmap = 1; /* Copy local arrays to user space. */ if ((error = copyout(red, cmap->red, count)) != 0) return (error); if ((error = copyout(green, cmap->green, count)) != 0) return (error); if ((error = copyout(blue, cmap->blue, count)) != 0) return (error); return (0); } int cgtwo_putcmap(struct cgtwo_softc *sc, struct wsdisplay_cmap *cmap) { u_int index = cmap->index, count = cmap->count, i; u_char red[CG2_CMSIZE], green[CG2_CMSIZE], blue[CG2_CMSIZE]; volatile u_short *hwcmap = sc->sc_cmap; int error; volatile u_short *p; if (index >= CG2_CMSIZE || count >= CG2_CMSIZE - index) return (EINVAL); /* Copy from user space to local arrays. */ if ((error = copyin(cmap->red, red, count)) != 0) return (error); if ((error = copyin(cmap->green, green, count)) != 0) return (error); if ((error = copyin(cmap->blue, blue, count)) != 0) return (error); while (sc->sc_reg->retrace == 0) DELAY(1); sc->sc_reg->update_cmap = 0; /* Copy from local arrays to hardware. */ p = &sc_redmap(hwcmap)[index]; for (i = 0; i < count; i++) *p++ = red[i]; p = &sc_greenmap(hwcmap)[index]; for (i = 0; i < count; i++) *p++ = green[i]; p = &sc_bluemap(hwcmap)[index]; for (i = 0; i < count; i++) *p++ = blue[i]; sc->sc_reg->update_cmap = 1; return (0); } void cgtwo_setcolor(void *v, u_int index, u_int8_t r, u_int8_t g, u_int8_t b) { struct cgtwo_softc *sc = v; while (sc->sc_reg->retrace == 0) DELAY(1); sc->sc_reg->update_cmap = 0; sc_redmap(sc->sc_cmap)[index] = r; sc_greenmap(sc->sc_cmap)[index] = g; sc_bluemap(sc->sc_cmap)[index] = b; sc->sc_reg->update_cmap = 1; }