/* $NetBSD: cgtwo.c,v 1.28 1998/03/21 20:11:31 pk Exp $ */ /* * 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. 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, Berkeley and its contributors. * 4. 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 #include #include #include #include #include #include /* per-display variables */ struct cgtwo_softc { struct device sc_dev; /* base device */ struct fbdevice sc_fb; /* frame buffer device */ vme_addr_t sc_paddr; vme_chipset_tag_t sc_ct; bus_space_tag_t sc_bt; volatile struct cg2statusreg *sc_reg; /* CG2 control registers */ volatile u_short *sc_cmap; #define sc_redmap(sc) ((sc)->sc_cmap) #define sc_greenmap(sc) ((sc)->sc_cmap + CG2_CMSIZE) #define sc_bluemap(sc) ((sc)->sc_cmap + 2 * CG2_CMSIZE) }; /* autoconfiguration driver */ static void cgtwoattach __P((struct device *, struct device *, void *)); static int cgtwomatch __P((struct device *, struct cfdata *, void *)); static void cgtwounblank __P((struct device *)); int cgtwogetcmap __P((struct cgtwo_softc *, struct fbcmap *)); int cgtwoputcmap __P((struct cgtwo_softc *, struct fbcmap *)); /* cdevsw prototypes */ cdev_decl(cgtwo); struct cfattach cgtwo_ca = { sizeof(struct cgtwo_softc), cgtwomatch, cgtwoattach }; extern struct cfdriver cgtwo_cd; /* frame buffer generic driver */ static struct fbdriver cgtwofbdriver = { cgtwounblank, cgtwoopen, cgtwoclose, cgtwoioctl, cgtwopoll, cgtwommap }; extern int fbnode; extern struct tty *fbconstty; /* * Match a cgtwo. */ int cgtwomatch(parent, cf, aux) struct device *parent; struct cfdata *cf; void *aux; { struct vme_attach_args *va = aux; vme_chipset_tag_t ct = va->vma_chipset_tag; bus_space_tag_t bt = va->vma_bustag; vme_mod_t mod; /* * Mask out invalid flags from the user. */ cf->cf_flags &= FB_USERMASK; mod = VMEMOD_A24 | VMEMOD_S | VMEMOD_D; if (vme_bus_probe(ct, bt, va->vma_reg[0], CG2_CTLREG_OFF, 2, mod, 0, 0)) { return (1); } return (0); } /* * Attach a display. We need to notice if it is the console, too. */ void cgtwoattach(parent, self, aux) struct device *parent, *self; void *aux; { struct vme_attach_args *va = aux; vme_chipset_tag_t ct = va->vma_chipset_tag; bus_space_tag_t bt = va->vma_bustag; bus_space_handle_t bh; vme_mod_t mod; struct cgtwo_softc *sc = (struct cgtwo_softc *)self; struct fbdevice *fb = &sc->sc_fb; struct eeprom *eep = (struct eeprom *)eeprom_va; int isconsole = 0; char *nam = NULL; sc->sc_ct = ct; sc->sc_bt = bt; fb->fb_driver = &cgtwofbdriver; fb->fb_device = &sc->sc_dev; fb->fb_type.fb_type = FBTYPE_SUN2COLOR; fb->fb_flags = sc->sc_dev.dv_cfdata->cf_flags; 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 = roundup(CG2_MAPPED_SIZE, NBPG); printf(": %s, %d x %d", nam, fb->fb_type.fb_width, fb->fb_type.fb_height); /* * 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. We only need the video RAM if we are * going to print characters via rconsole. */ sc->sc_paddr = va->vma_reg[0]; mod = VMEMOD_A24 | VMEMOD_S | VMEMOD_D; if (vme_bus_map(ct, sc->sc_paddr + CG2_ROPMEM_OFF + offsetof(struct cg2fb, status.reg), sizeof(struct cg2statusreg), mod, bt, &bh) != 0) panic("cgtwo: vme_map status"); sc->sc_reg = (volatile struct cg2statusreg *)bh; if (vme_bus_map(ct, sc->sc_paddr + CG2_ROPMEM_OFF + offsetof(struct cg2fb, redmap[0]), 3 * CG2_CMSIZE, mod, bt, &bh) != 0) panic("cgtwo: vme_map cmap"); sc->sc_cmap = (volatile u_short *)bh; /* * Assume this is the console if there's no eeprom info * to be found. */ if (eep == NULL || eep->eeConsole == EE_CONS_COLOR) isconsole = (fbconstty != NULL); else isconsole = 0; if (isconsole) { if (vme_bus_map(ct, sc->sc_paddr + CG2_PIXMAP_OFF, CG2_PIXMAP_SIZE, mod, bt, &bh) != 0) panic("cgtwo: vme_map pixels"); fb->fb_pixels = (caddr_t)bh; printf(" (console)\n"); #ifdef RASTERCONSOLE fbrcons_init(fb); #endif } else printf("\n"); fb_attach(fb, isconsole); } int cgtwoopen(dev, flags, mode, p) dev_t dev; int flags, mode; struct proc *p; { int unit = minor(dev); if (unit >= cgtwo_cd.cd_ndevs || cgtwo_cd.cd_devs[unit] == NULL) return (ENXIO); return (0); } int cgtwoclose(dev, flags, mode, p) dev_t dev; int flags, mode; struct proc *p; { return (0); } int cgtwoioctl(dev, cmd, data, flags, p) dev_t dev; u_long cmd; register caddr_t data; int flags; struct proc *p; { register struct cgtwo_softc *sc = cgtwo_cd.cd_devs[minor(dev)]; register struct fbgattr *fba; 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: return cgtwogetcmap(sc, (struct fbcmap *) data); case FBIOPUTCMAP: return cgtwoputcmap(sc, (struct fbcmap *) data); case FBIOGVIDEO: *(int *)data = sc->sc_reg->video_enab; break; case FBIOSVIDEO: sc->sc_reg->video_enab = (*(int*)data) & 1; break; default: return (ENOTTY); } return (0); } int cgtwopoll(dev, events, p) dev_t dev; int events; struct proc *p; { return (seltrue(dev, events, p)); } /* * Undo the effect of an FBIOSVIDEO that turns the video off. */ static void cgtwounblank(dev) struct device *dev; { struct cgtwo_softc *sc = (struct cgtwo_softc *)dev; sc->sc_reg->video_enab = 1; } /* */ int cgtwogetcmap(sc, cmap) register struct cgtwo_softc *sc; register struct fbcmap *cmap; { u_char red[CG2_CMSIZE], green[CG2_CMSIZE], blue[CG2_CMSIZE]; int error, start, count, ecount; register u_int i; register volatile u_short *p; start = cmap->index; count = cmap->count; ecount = start + count; if (start >= CG2_CMSIZE || ecount > CG2_CMSIZE) return (EINVAL); /* XXX - Wait for retrace? */ /* Copy hardware to local arrays. */ p = &sc_redmap(sc)[start]; for (i = start; i < ecount; i++) red[i] = *p++; p = &sc_greenmap(sc)[start]; for (i = start; i < ecount; i++) green[i] = *p++; p = &sc_bluemap(sc)[start]; for (i = start; i < ecount; i++) blue[i] = *p++; /* Copy local arrays to user space. */ if ((error = copyout(red + start, cmap->red, count)) != 0) return (error); if ((error = copyout(green + start, cmap->green, count)) != 0) return (error); if ((error = copyout(blue + start, cmap->blue, count)) != 0) return (error); return (0); } /* */ int cgtwoputcmap(sc, cmap) register struct cgtwo_softc *sc; register struct fbcmap *cmap; { u_char red[CG2_CMSIZE], green[CG2_CMSIZE], blue[CG2_CMSIZE]; int error, start, count, ecount; register u_int i; register volatile u_short *p; start = cmap->index; count = cmap->count; ecount = start + count; if (start >= CG2_CMSIZE || ecount > CG2_CMSIZE) return (EINVAL); /* Copy from user space to local arrays. */ if ((error = copyin(cmap->red, red + start, count)) != 0) return (error); if ((error = copyin(cmap->green, green + start, count)) != 0) return (error); if ((error = copyin(cmap->blue, blue + start, count)) != 0) return (error); /* XXX - Wait for retrace? */ /* Copy from local arrays to hardware. */ p = &sc_redmap(sc)[start]; for (i = start; i < ecount; i++) *p++ = red[i]; p = &sc_greenmap(sc)[start]; for (i = start; i < ecount; i++) *p++ = green[i]; p = &sc_bluemap(sc)[start]; for (i = start; i < ecount; i++) *p++ = blue[i]; 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. */ int cgtwommap(dev, off, prot) dev_t dev; int off, prot; { register struct cgtwo_softc *sc = cgtwo_cd.cd_devs[minor(dev)]; vme_mod_t mod; int handle; if (off & PGOFSET) panic("cgtwommap"); if ((unsigned)off >= sc->sc_fb.fb_type.fb_size) return (-1); /* Apparently, the pixels are in 32-bit data space */ mod = VMEMOD_A24 | VMEMOD_S | VMEMOD_D | VMEMOD_D32; if (vme_bus_mmap_cookie(sc->sc_ct, sc->sc_paddr + off, mod, sc->sc_bt, &handle) != 0) panic("cgtwommap"); return (handle); }