/* $OpenBSD: cgeight.c,v 1.28 2006/12/03 22:13:05 miod Exp $ */ /* $NetBSD: cgeight.c,v 1.13 1997/05/24 20:16:04 pk Exp $ */ /* * Copyright (c) 2002 Miodrag Vallat. All rights reserved. * Copyright (c) 1996 Jason R. Thorpe. All rights reserved. * Copyright (c) 1995 Theo de Raadt * 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 (cgeight) driver. * * For performance reasons, we run the emulation mode in the (monochrome) * overlay plane, but X11 in the 24-bit color plane. * * Does not handle interrupts, even though they can occur. */ #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 cgeight_softc { struct sunfb sc_sunfb; /* common base device */ struct rom_reg sc_phys; volatile struct fbcontrol *sc_fbc; /* Brooktree registers */ volatile u_char *sc_enable; /* enable plane */ }; int cgeight_ioctl(void *, u_long, caddr_t, int, struct proc *); paddr_t cgeight_mmap(void *, off_t, int); void cgeight_reset(struct cgeight_softc *, int); struct wsdisplay_accessops cgeight_accessops = { cgeight_ioctl, cgeight_mmap, NULL, /* alloc_screen */ NULL, /* free_screen */ NULL, /* show_screen */ NULL, /* load_font */ NULL, /* scrollback */ NULL, /* getchar */ fb_pfour_burner, NULL /* pollc */ }; void cgeightattach(struct device *, struct device *, void *); int cgeightmatch(struct device *, void *, void *); struct cfattach cgeight_ca = { sizeof(struct cgeight_softc), cgeightmatch, cgeightattach }; struct cfdriver cgeight_cd = { NULL, "cgeight", DV_DULL }; int cgeightmatch(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)) return (0); if (!CPU_ISSUN4 || ca->ca_bustype != BUS_OBIO) return (0); /* * Make sure there's hardware there. */ if (probeget(ra->ra_vaddr, 4) == -1) return (0); /* * Check the pfour register. */ if (fb_pfour_id(ra->ra_vaddr) == PFOUR_ID_COLOR24) return (1); return (0); } void cgeightattach(struct device *parent, struct device *self, void *args) { struct cgeight_softc *sc = (struct cgeight_softc *)self; struct confargs *ca = args; int node = 0; volatile struct bt_regs *bt; int isconsole = 0; /* Map the pfour register. */ SET(sc->sc_sunfb.sf_flags, FB_PFOUR); sc->sc_sunfb.sf_pfour = (volatile u_int32_t *) mapiodev(ca->ca_ra.ra_reg, 0, sizeof(u_int32_t)); if (cputyp == CPU_SUN4) { 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 = 1; } /* Map the Brooktree. */ sc->sc_fbc = (volatile struct fbcontrol *) mapiodev(ca->ca_ra.ra_reg, PFOUR_COLOR_OFF_CMAP, sizeof(struct fbcontrol)); sc->sc_phys = ca->ca_ra.ra_reg[0]; /* enable video */ fb_pfour_burner(sc, 1, 0); bt = &sc->sc_fbc->fbc_dac; BT_INIT(bt, 0); fb_setsize(&sc->sc_sunfb, 1, 1152, 900, node, ca->ca_bustype); sc->sc_sunfb.sf_ro.ri_hw = sc; /* * Map the overlay and overlay enable planes. */ sc->sc_enable = (volatile u_char *)mapiodev(ca->ca_ra.ra_reg, PFOUR_COLOR_OFF_ENABLE, round_page(sc->sc_sunfb.sf_fbsize)); sc->sc_sunfb.sf_ro.ri_bits = mapiodev(ca->ca_ra.ra_reg, PFOUR_COLOR_OFF_OVERLAY, round_page(sc->sc_sunfb.sf_fbsize)); cgeight_reset(sc, WSDISPLAYIO_MODE_EMUL); fbwscons_init(&sc->sc_sunfb, isconsole ? 0 : RI_CLEAR); printf(": p4, %dx%d", sc->sc_sunfb.sf_width, sc->sc_sunfb.sf_height); if (isconsole) { fbwscons_console_init(&sc->sc_sunfb, -1); } fbwscons_attach(&sc->sc_sunfb, &cgeight_accessops, isconsole); } void cgeight_reset(struct cgeight_softc *sc, int mode) { volatile struct bt_regs *bt; union bt_cmap cm; u_int c; bt = &sc->sc_fbc->fbc_dac; /* * Depending on the mode requested, disable or enable * the overlay plane. */ if (mode == WSDISPLAYIO_MODE_EMUL) { memset((void *)sc->sc_enable, 0xff, round_page(sc->sc_sunfb.sf_fbsize)); /* Setup a strict mono colormap */ cm.cm_map[0][0] = cm.cm_map[0][1] = cm.cm_map[0][2] = 0x00; for (c = 1; c < 256; c++) { cm.cm_map[c][0] = cm.cm_map[c][1] = cm.cm_map[c][2] = 0xff; } } else { memset((void *)sc->sc_enable, 0x00, round_page(sc->sc_sunfb.sf_fbsize)); /* Setup a ramp colormap (direct color) */ for (c = 0; c < 256; c++) { cm.cm_map[c][0] = cm.cm_map[c][1] = cm.cm_map[c][2] = c; } } /* Upload the colormap into the DAC */ bt_loadcmap(&cm, bt, 0, 256, 0); } int cgeight_ioctl(void *v, u_long cmd, caddr_t data, int flags, struct proc *p) { struct cgeight_softc *sc = v; struct wsdisplay_fbinfo *wdf; switch (cmd) { case WSDISPLAYIO_GTYPE: *(u_int *)data = WSDISPLAY_TYPE_SUNCG8; 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 = 24; wdf->cmsize = 0; break; case WSDISPLAYIO_SMODE: cgeight_reset(sc, *(int *)data); break; case WSDISPLAYIO_SVIDEO: case WSDISPLAYIO_GVIDEO: break; case WSDISPLAYIO_GETCMAP: /* nothing to do */ case WSDISPLAYIO_PUTCMAP: /* nothing to do */ case WSDISPLAYIO_GCURPOS: /* not supported */ case WSDISPLAYIO_SCURPOS: /* not supported */ case WSDISPLAYIO_GCURMAX: /* not supported */ case WSDISPLAYIO_GCURSOR: /* not supported */ case WSDISPLAYIO_SCURSOR: /* not supported */ default: return (-1); } return (0); } paddr_t cgeight_mmap(void *v, off_t offset, int prot) { struct cgeight_softc *sc = v; if (offset & PGOFSET) return (-1); /* Allow mapping of the 24-bit color planes */ if (offset >= 0 && offset < round_page(24 * sc->sc_sunfb.sf_fbsize)) { return (REG2PHYS(&sc->sc_phys, offset + PFOUR_COLOR_OFF_COLOR) | PMAP_NC); } return (-1); }