/* $OpenBSD: cgthree.c,v 1.29 2005/03/23 17:16:34 miod Exp $ */ /* $NetBSD: cgthree.c,v 1.33 1997/05/24 20:16:11 pk Exp $ */ /* * Copyright (c) 2002 Miodrag Vallat. All rights reserved. * Copyright (c) 2001 Jason L. Wright (jason@thought.net) * 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. * * Effort sponsored in part by the Defense Advanced Research Projects * Agency (DARPA) and Air Force Research Laboratory, Air Force * Materiel Command, USAF, under agreement number F30602-01-2-0537. * * * 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. * * @(#)cgthree.c 8.2 (Berkeley) 10/30/93 */ /* * Color display (cgthree) driver. * Works with the real Sun hardware, as well as various clones from Tatung, * Integrix (S20), and the Vigra VS10-EK. */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include /* per-display variables */ struct cgthree_softc { struct sunfb sc_sunfb; /* common base part */ struct sbusdev sc_sd; /* sbus device */ struct rom_reg sc_phys; /* phys address description */ volatile struct fbcontrol *sc_fbc; /* Brooktree registers */ union bt_cmap sc_cmap; /* Brooktree color map */ struct intrhand sc_ih; }; void cgthree_burner(void *, u_int, u_int); int cgthree_intr(void *); int cgthree_ioctl(void *, u_long, caddr_t, int, struct proc *); static __inline__ void cgthree_loadcmap_deferred(struct cgthree_softc *, u_int, u_int); paddr_t cgthree_mmap(void *, off_t, int); void cgthree_setcolor(void *, u_int, u_int8_t, u_int8_t, u_int8_t); struct wsdisplay_accessops cgthree_accessops = { cgthree_ioctl, cgthree_mmap, NULL, /* alloc_screen */ NULL, /* free_screen */ NULL, /* show_screen */ NULL, /* load_font */ NULL, /* scrollback */ NULL, /* getchar */ cgthree_burner, NULL /* pollc */ }; int cgthreematch(struct device *, void *, void *); void cgthreeattach(struct device *, struct device *, void *); struct cfattach cgthree_ca = { sizeof (struct cgthree_softc), cgthreematch, cgthreeattach }; struct cfdriver cgthree_cd = { NULL, "cgthree", DV_DULL }; /* Video control parameters */ struct cg3_videoctrl { u_int8_t sense; u_int8_t vctrl[12]; } cg3_videoctrl[] = { { /* cpd-1790 */ 0x31, { 0xbb, 0x2b, 0x04, 0x14, 0xae, 0x03, 0xa8, 0x24, 0x01, 0x05, 0xff, 0x01 }, }, { /* gdm-20e20 */ 0x41, { 0xb7, 0x27, 0x03, 0x0f, 0xae, 0x03, 0xae, 0x2a, 0x01, 0x09, 0xff, 0x01 }, }, { /* defaults, should be last */ 0xff, { 0xbb, 0x2b, 0x03, 0x0b, 0xb3, 0x03, 0xaf, 0x2b, 0x02, 0x0a, 0xff, 0x01 }, }, }; int cgthreematch(struct device *parent, void *vcf, void *aux) { struct cfdata *cf = vcf; struct confargs *ca = aux; struct romaux *ra = &ca->ca_ra; if (strcmp(cf->cf_driver->cd_name, ra->ra_name) && strcmp("cgRDI", ra->ra_name)) return (0); if (ca->ca_bustype == BUS_SBUS) return (1); ra->ra_len = NBPG; return (probeget(ra->ra_vaddr, 4) != -1); } void cgthreeattach(struct device *parent, struct device *self, void *args) { struct cgthree_softc *sc = (struct cgthree_softc *)self; struct confargs *ca = args; int node = 0, isrdi = 0, i; volatile struct bt_regs *bt; int isconsole = 0, sbus = 1; char *nam = NULL; switch (ca->ca_bustype) { case BUS_OBIO: if (CPU_ISSUN4M) { /* 4m has framebuffer on obio */ sbus = 0; node = ca->ca_ra.ra_node; nam = getpropstring(node, "model"); if (*nam == '\0') nam = "cgthree"; break; } case BUS_VME32: case BUS_VME16: sbus = node = 0; nam = "cgthree"; break; case BUS_SBUS: node = ca->ca_ra.ra_node; nam = getpropstring(node, "model"); if (*nam == '\0') nam = "cgthree"; break; } if (!strcmp(ca->ca_ra.ra_name, "cgRDI")) { isrdi = 1; nam = "cgRDI"; } printf(": %s", nam); isconsole = node == fbnode; sc->sc_fbc = (volatile struct fbcontrol *) mapiodev(ca->ca_ra.ra_reg, CG3REG_REG, sizeof(struct fbcontrol)); /* Transfer video magic to board, if it's not running */ if (isrdi == 0 && (sc->sc_fbc->fbc_ctrl & FBC_TIMING) == 0) for (i = 0; i < sizeof(cg3_videoctrl)/sizeof(cg3_videoctrl[0]); i++) { volatile struct fbcontrol *fbc = sc->sc_fbc; if (cg3_videoctrl[i].sense == 0xff || (fbc->fbc_status & FBS_MSENSE) == cg3_videoctrl[i].sense) { int j; #ifdef DEBUG printf(" (setting video ctrl)"); #endif for (j = 0; j < 12; j++) fbc->fbc_vcontrol[j] = cg3_videoctrl[i].vctrl[j]; fbc->fbc_ctrl |= FBC_TIMING; break; } } sc->sc_phys = ca->ca_ra.ra_reg[0]; sc->sc_ih.ih_fun = cgthree_intr; sc->sc_ih.ih_arg = sc; intr_establish(ca->ca_ra.ra_intr[0].int_pri, &sc->sc_ih, IPL_FB, self->dv_xname); /* grab initial (current) color map */ bt = &sc->sc_fbc->fbc_dac; bt->bt_addr = 0; for (i = 0; i < 256 * 3 / 4; i++) sc->sc_cmap.cm_chip[i] = bt->bt_cmap; /* enable video */ cgthree_burner(sc, 1, 0); BT_INIT(bt, 0); fb_setsize(&sc->sc_sunfb, 8, 1152, 900, node, ca->ca_bustype); sc->sc_sunfb.sf_ro.ri_bits = mapiodev(ca->ca_ra.ra_reg, CG3REG_MEM, 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); /* * If the framebuffer width is under 1024x768, which is the case for * some clones on laptops, as well as with the VS10-EK, switch from * the PROM font to the more adequate 8x16 font here. * However, we need to adjust two things in this case: * - the display row should be overrided from the current PROM metrics, * to prevent us from overwriting the last few lines of text. * - if the 80x34 screen would make a large margin appear around it, * choose to clear the screen rather than keeping old prom output in * the margins. * XXX there should be a rasops "clear margins" feature */ fbwscons_init(&sc->sc_sunfb, isconsole && (sc->sc_sunfb.sf_width >= 1024) ? 0 : RI_CLEAR); fbwscons_setcolormap(&sc->sc_sunfb, cgthree_setcolor); if (isconsole) { fbwscons_console_init(&sc->sc_sunfb, sc->sc_sunfb.sf_width >= 1024 ? -1 : 0); } #if defined(SUN4C) || defined(SUN4M) if (sbus) sbus_establish(&sc->sc_sd, &sc->sc_sunfb.sf_dev); #endif fbwscons_attach(&sc->sc_sunfb, &cgthree_accessops, isconsole); } int cgthree_ioctl(void *v, u_long cmd, caddr_t data, int flags, struct proc *p) { struct cgthree_softc *sc = v; struct wsdisplay_fbinfo *wdf; struct wsdisplay_cmap *cm; int error; switch (cmd) { case WSDISPLAYIO_GTYPE: *(u_int *)data = WSDISPLAY_TYPE_SUNCG3; 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 = 256; break; case WSDISPLAYIO_LINEBYTES: *(u_int *)data = sc->sc_sunfb.sf_linebytes; break; case WSDISPLAYIO_GETCMAP: cm = (struct wsdisplay_cmap *)data; error = bt_getcmap(&sc->sc_cmap, cm); if (error) return (error); break; case WSDISPLAYIO_PUTCMAP: cm = (struct wsdisplay_cmap *)data; error = bt_putcmap(&sc->sc_cmap, cm); if (error) return (error); cgthree_loadcmap_deferred(sc, cm->index, cm->count); 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 cgthree_mmap(void *v, off_t offset, int prot) { struct cgthree_softc *sc = v; if (offset & PGOFSET) return (-1); if (offset >= 0 && offset < sc->sc_sunfb.sf_fbsize) { return (REG2PHYS(&sc->sc_phys, CG3REG_MEM + offset) | PMAP_NC); } return (-1); } void cgthree_setcolor(void *v, u_int index, u_int8_t r, u_int8_t g, u_int8_t b) { struct cgthree_softc *sc = v; bt_setcolor(&sc->sc_cmap, &sc->sc_fbc->fbc_dac, index, r, g, b, 0); } static __inline__ void cgthree_loadcmap_deferred(struct cgthree_softc *sc, u_int start, u_int ncolors) { sc->sc_fbc->fbc_ctrl |= FBC_IENAB; } void cgthree_burner(void *v, u_int on, u_int flags) { struct cgthree_softc *sc = v; int s; s = splhigh(); if (on) sc->sc_fbc->fbc_ctrl |= FBC_VENAB | FBC_TIMING; else { sc->sc_fbc->fbc_ctrl &= ~FBC_VENAB; if (flags & WSDISPLAY_BURN_VBLANK) sc->sc_fbc->fbc_ctrl &= ~FBC_TIMING; } splx(s); } int cgthree_intr(void *v) { struct cgthree_softc *sc = v; if (!ISSET(sc->sc_fbc->fbc_ctrl, FBC_IENAB) || !ISSET(sc->sc_fbc->fbc_status, FBS_INTR)) { /* Not expecting an interrupt, it's not for us. */ return (0); } /* Acknowledge the interrupt and disable it. */ sc->sc_fbc->fbc_ctrl &= ~FBC_IENAB; bt_loadcmap(&sc->sc_cmap, &sc->sc_fbc->fbc_dac, 0, 256, 0); return (1); }