/* $OpenBSD: cgsix.c,v 1.21 2002/06/03 02:32:06 jason Exp $ */ /* * 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. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by Jason L. Wright * 4. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * 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. * */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include union bt_cmap { u_int8_t cm_map[256][3]; /* 256 r/b/g entries */ u_int32_t cm_chip[256 * 3 / 4]; /* the way the chip is loaded */ }; #define BT_ADDR 0x00 /* map address register */ #define BT_CMAP 0x04 /* colormap data register */ #define BT_CTRL 0x08 /* control register */ #define BT_OMAP 0x0c /* overlay (cursor) map register */ #define BT_D4M3(x) ((((x) >> 2) << 1) + ((x) >> 2)) /* (x / 4) * 3 */ #define BT_D4M4(x) ((x) & ~3) /* (x / 4) * 4 */ #define CGSIX_ROM_OFFSET 0x000000 #define CGSIX_BT_OFFSET 0x200000 #define CGSIX_BT_SIZE (sizeof(u_int32_t) * 4) #define CGSIX_DHC_OFFSET 0x240000 #define CGSIX_ALT_OFFSET 0x280000 #define CGSIX_FHC_OFFSET 0x300000 #define CGSIX_FHC_SIZE (sizeof(u_int32_t) * 1) #define CGSIX_THC_OFFSET 0x301000 #define CGSIX_THC_SIZE (sizeof(u_int32_t) * 640) #define CGSIX_FBC_OFFSET 0x700000 #define CGSIX_TEC_OFFSET 0x701000 #define CGSIX_TEC_SIZE (sizeof(u_int32_t) * 3) #define CGSIX_VID_OFFSET 0x800000 #define CGSIX_VID_SIZE (1024 * 1024) #define CG6_FHC 0x0 /* fhc register */ #define FHC_FBID_MASK 0xff000000 /* frame buffer id */ #define FHC_FBID_SHIFT 24 #define FHC_REV_MASK 0x00f00000 /* revision */ #define FHC_REV_SHIFT 20 #define FHC_FROP_DISABLE 0x00080000 /* disable fast rasterop */ #define FHC_ROW_DISABLE 0x00040000 /* ??? */ #define FHC_SRC_DISABLE 0x00020000 /* ??? */ #define FHC_DST_DISABLE 0x00010000 /* disable dst cache */ #define FHC_RESET 0x00008000 /* ??? */ #define FHC_LEBO 0x00002000 /* set little endian order */ #define FHC_RES_MASK 0x00001800 /* resolution: */ #define FHC_RES_1024 0x00000000 /* 1024x768 */ #define FHC_RES_1152 0x00000800 /* 1152x900 */ #define FHC_RES_1280 0x00001000 /* 1280x1024 */ #define FHC_RES_1600 0x00001800 /* 1600x1200 */ #define FHC_CPU_MASK 0x00000600 /* cpu type: */ #define FHC_CPU_SPARC 0x00000000 /* sparc */ #define FHC_CPU_68020 0x00000200 /* 68020 */ #define FHC_CPU_386 0x00000400 /* i386 */ #define FHC_TEST 0x00000100 /* test window */ #define FHC_TESTX_MASK 0x000000f0 /* test window X */ #define FHC_TESTX_SHIFT 4 #define FHC_TESTY_MASK 0x0000000f /* test window Y */ #define FHC_TESTY_SHIFT 0 #define CG6_TEC_MV 0x0 /* matrix stuff */ #define CG6_TEC_CLIP 0x4 /* clipping stuff */ #define CG6_TEC_VDC 0x8 /* ??? */ #define CG6_THC_HSYNC1 0x800 /* horizontal sync timing */ #define CG6_THC_HSYNC2 0x804 /* more hsync timing */ #define CG6_THC_HSYNC3 0x808 /* yet more hsync timing */ #define CG6_THC_VSYNC1 0x80c /* vertical sync timing */ #define CG6_THC_VSYNC2 0x810 /* only two of these */ #define CG6_THC_REFRESH 0x814 /* refresh counter */ #define CG6_THC_MISC 0x818 /* misc control/status */ #define CG6_THC_CURSXY 0x8fc /* cursor x/y, 16 bit each */ #define CG6_THC_CURSMASK 0x900 /* cursor mask bits */ #define CG6_THC_CURSBITS 0x980 /* cursor bits */ /* cursor x/y position for 'off' */ #define THC_CURSOFF ((65536-32) | ((65536-32) << 16)) #define THC_MISC_REV_M 0x000f0000 /* chip revision */ #define THC_MISC_REV_S 16 #define THC_MISC_RESET 0x00001000 /* reset */ #define THC_MISC_VIDEN 0x00000400 /* video enable */ #define THC_MISC_SYNC 0x00000200 /* not sure what ... */ #define THC_MISC_VSYNC 0x00000100 /* ... these really are */ #define THC_MISC_SYNCEN 0x00000080 /* sync enable */ #define THC_MISC_CURSRES 0x00000040 /* cursor resolution */ #define THC_MISC_INTEN 0x00000020 /* v.retrace intr enable */ #define THC_MISC_INTR 0x00000010 /* intr pending/ack */ #define THC_MISC_CYCLS 0x0000000f /* cycles before transfer */ struct cgsix_softc { struct device sc_dev; struct sbusdev sc_sd; bus_space_tag_t sc_bustag; bus_addr_t sc_paddr; bus_space_handle_t sc_bt_regs; bus_space_handle_t sc_fhc_regs; bus_space_handle_t sc_thc_regs; bus_space_handle_t sc_tec_regs; bus_space_handle_t sc_vid_regs; struct rasops_info sc_rasops; int sc_nscreens; int sc_width, sc_height, sc_depth, sc_linebytes; union bt_cmap sc_cmap; void *sc_ih; }; #define CG6_USER_FBC 0x70000000 #define CG6_USER_TEC 0x70001000 #define CG6_USER_BTREGS 0x70002000 #define CG6_USER_FHC 0x70004000 #define CG6_USER_THC 0x70005000 #define CG6_USER_ROM 0x70006000 #define CG6_USER_RAM 0x70016000 #define CG6_USER_DHC 0x80000000 #define THC_READ(sc,r) \ bus_space_read_4((sc)->sc_bustag, (sc)->sc_thc_regs, (r)) #define THC_WRITE(sc,r,v) \ bus_space_write_4((sc)->sc_bustag, (sc)->sc_thc_regs, (r), (v)) #define TEC_READ(sc,r) \ bus_space_read_4((sc)->sc_bustag, (sc)->sc_tec_regs, (r)) #define TEC_WRITE(sc,r,v) \ bus_space_write_4((sc)->sc_bustag, (sc)->sc_tec_regs, (r), (v)) #define FHC_READ(sc) \ bus_space_read_4((sc)->sc_bustag, (sc)->sc_fhc_regs, CG6_FHC) #define FHC_WRITE(sc,v) \ bus_space_write_4((sc)->sc_bustag, (sc)->sc_fhc_regs, CG6_FHC, (v)) #define BT_WRITE(sc, reg, val) \ bus_space_write_4((sc)->sc_bustag, (sc)->sc_bt_regs, (reg), (val)) #define BT_READ(sc, reg) \ bus_space_read_4((sc)->sc_bustag, (sc)->sc_bt_regs, (reg)) #define BT_BARRIER(sc,reg,flags) \ bus_space_barrier((sc)->sc_bustag, (sc)->sc_bt_regs, (reg), \ sizeof(u_int32_t), (flags)) struct wsscreen_descr cgsix_stdscreen = { "std", 0, 0, /* will be filled in -- XXX shouldn't, it's global. */ 0, 0, 0, WSSCREEN_REVERSE | WSSCREEN_WSCOLORS }; const struct wsscreen_descr *cgsix_scrlist[] = { &cgsix_stdscreen, /* XXX other formats? */ }; struct wsscreen_list cgsix_screenlist = { sizeof(cgsix_scrlist) / sizeof(struct wsscreen_descr *), cgsix_scrlist }; int cgsix_ioctl(void *, u_long, caddr_t, int, struct proc *); int cgsix_alloc_screen(void *, const struct wsscreen_descr *, void **, int *, int *, long *); void cgsix_free_screen(void *, void *); int cgsix_show_screen(void *, void *, int, void (*cb)(void *, int, int), void *); paddr_t cgsix_mmap(void *, off_t, int); int cgsix_is_console(int); int cg6_bt_getcmap(union bt_cmap *, struct wsdisplay_cmap *); int cg6_bt_putcmap(union bt_cmap *, struct wsdisplay_cmap *); void cgsix_loadcmap_immediate(struct cgsix_softc *, u_int, u_int); void cgsix_loadcmap_deferred(struct cgsix_softc *, u_int, u_int); void cgsix_setcolor(struct cgsix_softc *, u_int, u_int8_t, u_int8_t, u_int8_t); void cgsix_reset(struct cgsix_softc *); void cgsix_hardreset(struct cgsix_softc *); void cgsix_burner(void *, u_int, u_int); int cgsix_intr(void *); static int a2int(char *, int); struct wsdisplay_accessops cgsix_accessops = { cgsix_ioctl, cgsix_mmap, cgsix_alloc_screen, cgsix_free_screen, cgsix_show_screen, NULL, /* load_font */ NULL, /* scrollback */ NULL, /* getchar */ cgsix_burner, }; int cgsixmatch(struct device *, void *, void *); void cgsixattach(struct device *, struct device *, void *); struct cfattach cgsix_ca = { sizeof (struct cgsix_softc), cgsixmatch, cgsixattach }; struct cfdriver cgsix_cd = { NULL, "cgsix", DV_DULL }; int cgsixmatch(parent, vcf, aux) struct device *parent; void *vcf, *aux; { struct cfdata *cf = vcf; struct sbus_attach_args *sa = aux; return (strcmp(cf->cf_driver->cd_name, sa->sa_name) == 0); } void cgsixattach(parent, self, aux) struct device *parent, *self; void *aux; { struct cgsix_softc *sc = (struct cgsix_softc *)self; struct sbus_attach_args *sa = aux; struct wsemuldisplaydev_attach_args waa; int console, i; long defattr; sc->sc_bustag = sa->sa_bustag; sc->sc_paddr = sbus_bus_addr(sa->sa_bustag, sa->sa_slot, sa->sa_offset); if (sa->sa_nreg != 1) { printf(": expected %d registers, got %d\n", 1, sa->sa_nreg); goto fail; } /* * Map just BT, FHC, THC, and video RAM. */ if (sbus_bus_map(sa->sa_bustag, sa->sa_reg[0].sbr_slot, sa->sa_reg[0].sbr_offset + CGSIX_BT_OFFSET, CGSIX_BT_SIZE, BUS_SPACE_MAP_LINEAR, 0, &sc->sc_bt_regs) != 0) { printf(": cannot map bt registers\n"); goto fail_bt; } if (sbus_bus_map(sa->sa_bustag, sa->sa_reg[0].sbr_slot, sa->sa_reg[0].sbr_offset + CGSIX_FHC_OFFSET, CGSIX_FHC_SIZE, BUS_SPACE_MAP_LINEAR, 0, &sc->sc_fhc_regs) != 0) { printf(": cannot map fhc registers\n"); goto fail_fhc; } if (sbus_bus_map(sa->sa_bustag, sa->sa_reg[0].sbr_slot, sa->sa_reg[0].sbr_offset + CGSIX_THC_OFFSET, CGSIX_THC_SIZE, BUS_SPACE_MAP_LINEAR, 0, &sc->sc_thc_regs) != 0) { printf(": cannot map thc registers\n"); goto fail_thc; } if (sbus_bus_map(sa->sa_bustag, sa->sa_reg[0].sbr_slot, sa->sa_reg[0].sbr_offset + CGSIX_VID_OFFSET, CGSIX_VID_SIZE, BUS_SPACE_MAP_LINEAR, 0, &sc->sc_vid_regs) != 0) { printf(": cannot map vid registers\n"); goto fail_vid; } if (sbus_bus_map(sa->sa_bustag, sa->sa_reg[0].sbr_slot, sa->sa_reg[0].sbr_offset + CGSIX_TEC_OFFSET, CGSIX_TEC_SIZE, BUS_SPACE_MAP_LINEAR, 0, &sc->sc_tec_regs) != 0) { printf(": cannot map tec registers\n"); goto fail_tec; } if ((sc->sc_ih = bus_intr_establish(sa->sa_bustag, sa->sa_pri, IPL_TTY, 0, cgsix_intr, sc)) == NULL) { printf(": couldn't establish interrupt, pri %d\n", sa->sa_pri); goto fail_intr; } /* if prom didn't initialize us, do it the hard way */ if (OF_getproplen(sa->sa_node, "width") != sizeof(u_int32_t)) cgsix_hardreset(sc); console = cgsix_is_console(sa->sa_node); cgsix_reset(sc); /* grab the current palette */ BT_WRITE(sc, BT_ADDR, 0); for (i = 0; i < 256; i++) { sc->sc_cmap.cm_map[i][0] = BT_READ(sc, BT_CMAP) >> 24; sc->sc_cmap.cm_map[i][1] = BT_READ(sc, BT_CMAP) >> 24; sc->sc_cmap.cm_map[i][2] = BT_READ(sc, BT_CMAP) >> 24; } cgsix_burner(sc, 1, 0); sc->sc_depth = getpropint(sa->sa_node, "depth", 8); sc->sc_linebytes = getpropint(sa->sa_node, "linebytes", 1152); sc->sc_height = getpropint(sa->sa_node, "height", 900); sc->sc_width = getpropint(sa->sa_node, "width", 1152); sbus_establish(&sc->sc_sd, self); sc->sc_rasops.ri_depth = sc->sc_depth; sc->sc_rasops.ri_stride = sc->sc_linebytes; sc->sc_rasops.ri_flg = RI_CENTER; sc->sc_rasops.ri_bits = (void *)bus_space_vaddr(sc->sc_bustag, sc->sc_vid_regs); sc->sc_rasops.ri_width = sc->sc_width; sc->sc_rasops.ri_height = sc->sc_height; sc->sc_rasops.ri_hw = sc; rasops_init(&sc->sc_rasops, a2int(getpropstring(optionsnode, "screen-#rows"), 34), a2int(getpropstring(optionsnode, "screen-#columns"), 80)); cgsix_stdscreen.nrows = sc->sc_rasops.ri_rows; cgsix_stdscreen.ncols = sc->sc_rasops.ri_cols; cgsix_stdscreen.textops = &sc->sc_rasops.ri_ops; sc->sc_rasops.ri_ops.alloc_attr(&sc->sc_rasops, WSCOL_WHITE, WSCOL_BLACK, WSATTR_WSCOLORS, &defattr); printf("\n"); if (console) { int *ccolp, *crowp; cgsix_setcolor(sc, WSCOL_BLACK, 0, 0, 0); cgsix_setcolor(sc, 255, 255, 255, 255); cgsix_setcolor(sc, WSCOL_RED, 255, 0, 0); cgsix_setcolor(sc, WSCOL_GREEN, 0, 255, 0); cgsix_setcolor(sc, WSCOL_BROWN, 154, 85, 46); cgsix_setcolor(sc, WSCOL_BLUE, 0, 0, 255); cgsix_setcolor(sc, WSCOL_MAGENTA, 255, 255, 0); cgsix_setcolor(sc, WSCOL_CYAN, 0, 255, 255); cgsix_setcolor(sc, WSCOL_WHITE, 255, 255, 255); if (romgetcursoraddr(&crowp, &ccolp)) ccolp = crowp = NULL; if (ccolp != NULL) sc->sc_rasops.ri_ccol = *ccolp; if (crowp != NULL) sc->sc_rasops.ri_crow = *crowp; wsdisplay_cnattach(&cgsix_stdscreen, &sc->sc_rasops, sc->sc_rasops.ri_ccol, sc->sc_rasops.ri_crow, defattr); } waa.console = console; waa.scrdata = &cgsix_screenlist; waa.accessops = &cgsix_accessops; waa.accesscookie = sc; config_found(self, &waa, wsemuldisplaydevprint); return; fail_intr: bus_space_unmap(sa->sa_bustag, sc->sc_tec_regs, CGSIX_TEC_SIZE); fail_tec: bus_space_unmap(sa->sa_bustag, sc->sc_vid_regs, CGSIX_VID_SIZE); fail_vid: bus_space_unmap(sa->sa_bustag, sc->sc_thc_regs, CGSIX_THC_SIZE); fail_thc: bus_space_unmap(sa->sa_bustag, sc->sc_fhc_regs, CGSIX_FHC_SIZE); fail_fhc: bus_space_unmap(sa->sa_bustag, sc->sc_bt_regs, CGSIX_BT_SIZE); fail_bt: fail: } int cgsix_ioctl(v, cmd, data, flags, p) void *v; u_long cmd; caddr_t data; int flags; struct proc *p; { struct cgsix_softc *sc = v; struct wsdisplay_cmap *cm; struct wsdisplay_fbinfo *wdf; int error; switch (cmd) { case WSDISPLAYIO_GTYPE: *(u_int *)data = WSDISPLAY_TYPE_UNKNOWN; break; case WSDISPLAYIO_GINFO: wdf = (void *)data; wdf->height = sc->sc_height; wdf->width = sc->sc_width; wdf->depth = sc->sc_depth; wdf->cmsize = 256; break; case WSDISPLAYIO_LINEBYTES: *(u_int *)data = sc->sc_linebytes; break; case WSDISPLAYIO_GETCMAP: cm = (struct wsdisplay_cmap *)data; error = cg6_bt_getcmap(&sc->sc_cmap, cm); if (error) return (error); break; case WSDISPLAYIO_PUTCMAP: cm = (struct wsdisplay_cmap *)data; error = cg6_bt_putcmap(&sc->sc_cmap, cm); if (error) return (error); cgsix_loadcmap_deferred(sc, cm->index, cm->count); break; case WSDISPLAYIO_SVIDEO: case WSDISPLAYIO_GVIDEO: case WSDISPLAYIO_GCURPOS: case WSDISPLAYIO_SCURPOS: case WSDISPLAYIO_GCURMAX: case WSDISPLAYIO_GCURSOR: case WSDISPLAYIO_SCURSOR: default: return -1; /* not supported yet */ } return (0); } int cgsix_alloc_screen(v, type, cookiep, curxp, curyp, attrp) void *v; const struct wsscreen_descr *type; void **cookiep; int *curxp, *curyp; long *attrp; { struct cgsix_softc *sc = v; if (sc->sc_nscreens > 0) return (ENOMEM); *cookiep = &sc->sc_rasops; *curyp = 0; *curxp = 0; sc->sc_rasops.ri_ops.alloc_attr(&sc->sc_rasops, WSCOL_WHITE, WSCOL_BLACK, WSATTR_WSCOLORS, attrp); sc->sc_nscreens++; return (0); } void cgsix_free_screen(v, cookie) void *v; void *cookie; { struct cgsix_softc *sc = v; sc->sc_nscreens--; } int cgsix_show_screen(v, cookie, waitok, cb, cbarg) void *v; void *cookie; int waitok; void (*cb)(void *, int, int); void *cbarg; { return (0); } paddr_t cgsix_mmap(v, off, prot) void *v; off_t off; int prot; { struct cgsix_softc *sc = v; if (off & PGOFSET) return (-1); /* Allow mapping as a dumb framebuffer from offset 0 */ if (off >= 0 && off < (sc->sc_linebytes * sc->sc_height)) return (bus_space_mmap(sc->sc_bustag, sc->sc_paddr, off + CGSIX_VID_OFFSET, prot, BUS_SPACE_MAP_LINEAR)); return (-1); } static int a2int(char *cp, int deflt) { int i = 0; if (*cp == '\0') return (deflt); while (*cp != '\0') i = i * 10 + *cp++ - '0'; return (i); } int cgsix_is_console(node) int node; { extern int fbnode; return (fbnode == node); } int cg6_bt_getcmap(bcm, rcm) union bt_cmap *bcm; struct wsdisplay_cmap *rcm; { u_int index = rcm->index, count = rcm->count, i; int error; if (index >= 256 || index + count > 256) return (EINVAL); for (i = 0; i < count; i++) { if ((error = copyout(&bcm->cm_map[index + i][0], &rcm->red[i], 1)) != 0) return (error); if ((error = copyout(&bcm->cm_map[index + i][1], &rcm->green[i], 1)) != 0) return (error); if ((error = copyout(&bcm->cm_map[index + i][2], &rcm->blue[i], 1)) != 0) return (error); } return (0); } int cg6_bt_putcmap(bcm, rcm) union bt_cmap *bcm; struct wsdisplay_cmap *rcm; { u_int index = rcm->index, count = rcm->count, i; int error; if (index >= 256 || rcm->count > 256 || (rcm->index + rcm->count) > 256) return (EINVAL); for (i = 0; i < count; i++) { if ((error = copyin(&rcm->red[i], &bcm->cm_map[index + i][0], 1)) != 0) return (error); if ((error = copyin(&rcm->green[i], &bcm->cm_map[index + i][1], 1)) != 0) return (error); if ((error = copyin(&rcm->blue[i], &bcm->cm_map[index + i][2], 1)) != 0) return (error); } return (0); } void cgsix_loadcmap_deferred(sc, start, ncolors) struct cgsix_softc *sc; u_int start, ncolors; { u_int32_t thcm; thcm = THC_READ(sc, CG6_THC_MISC); thcm &= ~THC_MISC_RESET; thcm |= THC_MISC_INTEN; THC_WRITE(sc, CG6_THC_MISC, thcm); } void cgsix_loadcmap_immediate(sc, start, ncolors) struct cgsix_softc *sc; u_int start, ncolors; { u_int cstart; u_int32_t v; int count; cstart = BT_D4M3(start); count = BT_D4M3(start + ncolors - 1) - BT_D4M3(start) + 3; BT_WRITE(sc, BT_ADDR, BT_D4M4(start) << 24); while (--count >= 0) { v = sc->sc_cmap.cm_chip[cstart]; BT_WRITE(sc, BT_CMAP, v << 0); BT_WRITE(sc, BT_CMAP, v << 8); BT_WRITE(sc, BT_CMAP, v << 16); BT_WRITE(sc, BT_CMAP, v << 24); cstart++; } } void cgsix_setcolor(sc, index, r, g, b) struct cgsix_softc *sc; u_int index; u_int8_t r, g, b; { union bt_cmap *bcm = &sc->sc_cmap; bcm->cm_map[index][0] = r; bcm->cm_map[index][1] = g; bcm->cm_map[index][2] = b; cgsix_loadcmap_immediate(sc, index, 1); } void cgsix_reset(sc) struct cgsix_softc *sc; { u_int32_t fhc, rev; /* hide the cursor, just in case */ THC_WRITE(sc, CG6_THC_CURSXY, THC_CURSOFF); TEC_WRITE(sc, CG6_TEC_MV, 0); TEC_WRITE(sc, CG6_TEC_CLIP, 0); TEC_WRITE(sc, CG6_TEC_VDC, 0); fhc = FHC_READ(sc); rev = (fhc & FHC_REV_MASK) >> FHC_REV_SHIFT; /* take core of hardware bugs in old revisions */ if (rev < 5) { /* * Keep current resolution; set cpu to 68020, set test * window (size 1Kx1K), and for rev 1, disable dest cache. */ fhc &= FHC_RES_MASK; fhc |= FHC_CPU_68020 | FHC_TEST | (11 << FHC_TESTX_SHIFT) | (11 << FHC_TESTY_SHIFT); if (rev < 2) fhc |= FHC_DST_DISABLE; FHC_WRITE(sc, fhc); } /* enable cursor in brooktree DAC */ BT_WRITE(sc, BT_ADDR, 0x6 << 24); BT_WRITE(sc, BT_CTRL, BT_READ(sc, BT_CTRL) | (0x3 << 24)); } void cgsix_hardreset(sc) struct cgsix_softc *sc; { u_int32_t fhc, rev; /* setup brooktree */ BT_WRITE(sc, BT_ADDR, 0x04 << 24); BT_BARRIER(sc, BT_ADDR, BUS_SPACE_BARRIER_WRITE); BT_WRITE(sc, BT_CTRL, 0xff << 24); BT_BARRIER(sc, BT_CTRL, BUS_SPACE_BARRIER_WRITE); BT_WRITE(sc, BT_ADDR, 0x05 << 24); BT_BARRIER(sc, BT_ADDR, BUS_SPACE_BARRIER_WRITE); BT_WRITE(sc, BT_CTRL, 0x00 << 24); BT_BARRIER(sc, BT_CTRL, BUS_SPACE_BARRIER_WRITE); BT_WRITE(sc, BT_ADDR, 0x06 << 24); BT_BARRIER(sc, BT_ADDR, BUS_SPACE_BARRIER_WRITE); BT_WRITE(sc, BT_CTRL, 0x70 << 24); BT_BARRIER(sc, BT_CTRL, BUS_SPACE_BARRIER_WRITE); BT_WRITE(sc, BT_ADDR, 0x07 << 24); BT_BARRIER(sc, BT_ADDR, BUS_SPACE_BARRIER_WRITE); BT_WRITE(sc, BT_CTRL, 0x00 << 24); BT_BARRIER(sc, BT_CTRL, BUS_SPACE_BARRIER_WRITE); /* configure thc */ THC_WRITE(sc, CG6_THC_MISC, THC_MISC_RESET | THC_MISC_INTR | THC_MISC_CYCLS); THC_WRITE(sc, CG6_THC_MISC, THC_MISC_INTR | THC_MISC_CYCLS); THC_WRITE(sc, CG6_THC_HSYNC1, 0x10009); THC_WRITE(sc, CG6_THC_HSYNC2, 0x570000); THC_WRITE(sc, CG6_THC_HSYNC3, 0x15005d); THC_WRITE(sc, CG6_THC_VSYNC1, 0x10005); THC_WRITE(sc, CG6_THC_VSYNC2, 0x2403a8); THC_WRITE(sc, CG6_THC_REFRESH, 0x16b); THC_WRITE(sc, CG6_THC_MISC, THC_MISC_RESET | THC_MISC_INTR | THC_MISC_CYCLS); THC_WRITE(sc, CG6_THC_MISC, THC_MISC_INTR | THC_MISC_CYCLS); /* configure fhc (1152x900) */ fhc = FHC_READ(sc); rev = (fhc & FHC_REV_MASK) >> FHC_REV_SHIFT; fhc = FHC_RES_1152 | FHC_CPU_68020 | FHC_TEST; if (rev < 1) fhc |= FHC_FROP_DISABLE; if (rev < 2) fhc |= FHC_DST_DISABLE; FHC_WRITE(sc, fhc); } void cgsix_burner(vsc, on, flags) void *vsc; u_int on, flags; { struct cgsix_softc *sc = vsc; int s; u_int32_t thcm; s = splhigh(); thcm = THC_READ(sc, CG6_THC_MISC); if (on) thcm |= THC_MISC_VIDEN | THC_MISC_SYNCEN; else { thcm &= ~THC_MISC_VIDEN; if (flags & WSDISPLAY_BURN_VBLANK) thcm &= ~THC_MISC_SYNCEN; } THC_WRITE(sc, CG6_THC_MISC, thcm); splx(s); } int cgsix_intr(vsc) void *vsc; { struct cgsix_softc *sc = vsc; u_int32_t thcm; thcm = THC_READ(sc, CG6_THC_MISC); if ((thcm & (THC_MISC_INTEN | THC_MISC_INTR)) != (THC_MISC_INTEN | THC_MISC_INTR)) { /* Not expecting an interrupt, it's not for us. */ return (0); } /* Acknowledge the interrupt and disable it. */ thcm &= ~(THC_MISC_RESET | THC_MISC_INTEN); thcm |= THC_MISC_INTR; THC_WRITE(sc, CG6_THC_MISC, thcm); cgsix_loadcmap_immediate(sc, 0, 256); return (1); }