/* $OpenBSD: cgthree.c,v 1.38 2005/03/01 21:23:36 miod 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. * * 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 #include #include #define CGTHREE_CTRL_OFFSET 0x400000 #define CGTHREE_CTRL_SIZE (sizeof(u_int32_t) * 8) #define CGTHREE_VID_OFFSET 0x800000 #define CGTHREE_VID_SIZE (1024 * 1024) 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 CG3_FBC_CTRL 0x10 /* control */ #define CG3_FBC_STAT 0x11 /* status */ #define CG3_FBC_START 0x12 /* cursor start */ #define CG3_FBC_END 0x13 /* cursor end */ #define CG3_FBC_VCTRL 0x14 /* 12 bytes of timing goo */ #define BT_WRITE(sc, reg, val) \ bus_space_write_4((sc)->sc_bustag, (sc)->sc_ctrl_regs, (reg), (val)) #define BT_READ(sc, reg) \ bus_space_read_4((sc)->sc_bustag, (sc)->sc_ctrl_regs, (reg)) #define BT_BARRIER(sc,reg,flags) \ bus_space_barrier((sc)->sc_bustag, (sc)->sc_ctrl_regs, (reg), \ sizeof(u_int32_t), (flags)) #define BT_D4M3(x) ((((x) >> 2) << 1) + ((x) >> 2)) /* (x / 4) * 3 */ #define BT_D4M4(x) ((x) & ~3) /* (x / 4) * 4 */ #define FBC_CTRL_IENAB 0x80 /* interrupt enable */ #define FBC_CTRL_VENAB 0x40 /* video enable */ #define FBC_CTRL_TIME 0x20 /* timing enable */ #define FBC_CTRL_CURS 0x10 /* cursor compare enable */ #define FBC_CTRL_XTAL 0x0c /* xtal select (0,1,2,test): */ #define FBC_CTRL_XTAL_0 0x00 /* 0 */ #define FBC_CTRL_XTAL_1 0x04 /* 0 */ #define FBC_CTRL_XTAL_2 0x08 /* 0 */ #define FBC_CTRL_XTAL_TEST 0x0c /* 0 */ #define FBC_CTRL_DIV 0x03 /* divisor (1,2,3,4): */ #define FBC_CTRL_DIV_1 0x00 /* / 1 */ #define FBC_CTRL_DIV_2 0x01 /* / 2 */ #define FBC_CTRL_DIV_3 0x02 /* / 3 */ #define FBC_CTRL_DIV_4 0x03 /* / 4 */ #define FBC_STAT_INTR 0x80 /* interrupt pending */ #define FBC_STAT_RES 0x70 /* monitor sense: */ #define FBC_STAT_RES_1024 0x10 /* 1024x768 */ #define FBC_STAT_RES_1280 0x40 /* 1280x1024 */ #define FBC_STAT_RES_1152 0x30 /* 1152x900 */ #define FBC_STAT_RES_1152A 0x40 /* 1152x900x76, A */ #define FBC_STAT_RES_1600 0x50 /* 1600x1200 */ #define FBC_STAT_RES_1152B 0x60 /* 1152x900x86, B */ #define FBC_STAT_ID 0x0f /* id mask: */ #define FBC_STAT_ID_COLOR 0x01 /* color */ #define FBC_STAT_ID_MONO 0x02 /* monochrome */ #define FBC_STAT_ID_MONOECL 0x03 /* monochrome, ecl */ #define FBC_READ(sc, reg) \ bus_space_read_1((sc)->sc_bustag, (sc)->sc_ctrl_regs, (reg)) #define FBC_WRITE(sc, reg, val) \ bus_space_write_1((sc)->sc_bustag, (sc)->sc_ctrl_regs, (reg), (val)) struct cgthree_softc { struct sunfb sc_sunfb; struct sbusdev sc_sd; bus_space_tag_t sc_bustag; bus_addr_t sc_paddr; bus_space_handle_t sc_ctrl_regs; bus_space_handle_t sc_vid_regs; int sc_nscreens; union bt_cmap sc_cmap; u_int sc_mode; }; int cgthree_ioctl(void *, u_long, caddr_t, int, struct proc *); int cgthree_alloc_screen(void *, const struct wsscreen_descr *, void **, int *, int *, long *); void cgthree_free_screen(void *, void *); int cgthree_show_screen(void *, void *, int, void (*cb)(void *, int, int), void *); paddr_t cgthree_mmap(void *, off_t, int); int cgthree_is_console(int); void cgthree_loadcmap(struct cgthree_softc *, u_int, u_int); int cg3_bt_putcmap(union bt_cmap *, struct wsdisplay_cmap *); int cg3_bt_getcmap(union bt_cmap *, struct wsdisplay_cmap *); void cgthree_setcolor(void *, u_int, u_int8_t, u_int8_t, u_int8_t); void cgthree_burner(void *, u_int, u_int); void cgthree_reset(struct cgthree_softc *); void cgthree_updatecursor(struct rasops_info *); struct wsdisplay_accessops cgthree_accessops = { cgthree_ioctl, cgthree_mmap, cgthree_alloc_screen, cgthree_free_screen, cgthree_show_screen, NULL, /* load_font */ NULL, /* scrollback */ NULL, /* getchar */ cgthree_burner, }; 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 }; #define CG3_TYPE_DEFAULT 0 #define CG3_TYPE_76HZ 1 #define CG3_TYPE_SMALL 2 struct cg3_videoctrl { u_int8_t sense; u_int8_t vctrl[12]; u_int8_t ctrl; } cg3_videoctrl[] = { { /* cpd-1790 */ 0x31, { 0xbb, 0x2b, 0x04, 0x14, 0xae, 0x03, 0xa8, 0x24, 0x01, 0x05, 0xff, 0x01 }, FBC_CTRL_XTAL_0 | FBC_CTRL_DIV_1 }, { /* gdm-20e20 */ 0x41, { 0xb7, 0x27, 0x03, 0x0f, 0xae, 0x03, 0xae, 0x2a, 0x01, 0x09, 0xff, 0x01 }, FBC_CTRL_XTAL_1 | FBC_CTRL_DIV_1 }, { /* defaults, should be last */ 0xff, { 0xbb, 0x2b, 0x03, 0x0b, 0xb3, 0x03, 0xaf, 0x2b, 0x02, 0x0a, 0xff, 0x01 }, 0, }, }; int cgthreematch(struct device *parent, void *vcf, void *aux) { struct cfdata *cf = vcf; struct sbus_attach_args *sa = aux; return (strcmp(cf->cf_driver->cd_name, sa->sa_name) == 0); } void cgthreeattach(struct device *parent, struct device *self, void *aux) { struct cgthree_softc *sc = (struct cgthree_softc *)self; struct sbus_attach_args *sa = aux; int node, console, i; const char *nam; node = sa->sa_node; sc->sc_bustag = sa->sa_bustag; sc->sc_paddr = sbus_bus_addr(sa->sa_bustag, sa->sa_slot, sa->sa_offset); fb_setsize(&sc->sc_sunfb, 8, 1152, 900, node, 0); if (sa->sa_nreg != 1) { printf(": expected %d registers, got %d\n", 1, sa->sa_nreg); goto fail; } /* * Map just CTRL and video RAM. */ if (sbus_bus_map(sa->sa_bustag, sa->sa_reg[0].sbr_slot, sa->sa_reg[0].sbr_offset + CGTHREE_CTRL_OFFSET, CGTHREE_CTRL_SIZE, 0, 0, &sc->sc_ctrl_regs) != 0) { printf(": cannot map ctrl registers\n"); goto fail_ctrl; } if (sbus_bus_map(sa->sa_bustag, sa->sa_reg[0].sbr_slot, sa->sa_reg[0].sbr_offset + CGTHREE_VID_OFFSET, sc->sc_sunfb.sf_fbsize, BUS_SPACE_MAP_LINEAR, 0, &sc->sc_vid_regs) != 0) { printf(": cannot map vid registers\n"); goto fail_vid; } nam = getpropstring(node, "model"); if (*nam == '\0') nam = sa->sa_name; printf(": %s", nam); console = cgthree_is_console(node); sbus_establish(&sc->sc_sd, &sc->sc_sunfb.sf_dev); cgthree_reset(sc); BT_WRITE(sc, BT_ADDR, 0); for (i = 0; i < 256 * 3 / 4; i++) sc->sc_cmap.cm_chip[i] = BT_READ(sc, BT_CMAP); cgthree_burner(sc, 1, 0); sc->sc_sunfb.sf_ro.ri_bits = (void *)bus_space_vaddr(sc->sc_bustag, sc->sc_vid_regs); 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, console && (sc->sc_sunfb.sf_width >= 1024) ? 0 : RI_CLEAR); fbwscons_setcolormap(&sc->sc_sunfb, cgthree_setcolor); if (console) { sc->sc_sunfb.sf_ro.ri_updatecursor = cgthree_updatecursor; fbwscons_console_init(&sc->sc_sunfb, sc->sc_sunfb.sf_width >= 1024 ? -1 : 0, cgthree_burner); } fbwscons_attach(&sc->sc_sunfb, &cgthree_accessops, console); return; fail_vid: bus_space_unmap(sa->sa_bustag, sc->sc_ctrl_regs, CGTHREE_CTRL_SIZE); fail_ctrl: fail: ; } 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_SMODE: sc->sc_mode = *(u_int *)data; break; case WSDISPLAYIO_GINFO: wdf = (void *)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 = cg3_bt_getcmap(&sc->sc_cmap, cm); if (error) return (error); break; case WSDISPLAYIO_PUTCMAP: cm = (struct wsdisplay_cmap *)data; error = cg3_bt_putcmap(&sc->sc_cmap, cm); if (error) return (error); cgthree_loadcmap(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); } int cgthree_alloc_screen(void *v, const struct wsscreen_descr *type, void **cookiep, int *curxp, int *curyp, long *attrp) { struct cgthree_softc *sc = v; if (sc->sc_nscreens > 0) return (ENOMEM); *cookiep = &sc->sc_sunfb.sf_ro; *curyp = 0; *curxp = 0; sc->sc_sunfb.sf_ro.ri_ops.alloc_attr(&sc->sc_sunfb.sf_ro, WSCOL_BLACK, WSCOL_WHITE, WSATTR_WSCOLORS, attrp); sc->sc_nscreens++; return (0); } void cgthree_free_screen(void *v, void *cookie) { struct cgthree_softc *sc = v; sc->sc_nscreens--; } int cgthree_show_screen(void *v, void *cookie, int waitok, void (*cb)(void *, int, int), void *cbarg) { return (0); } #define START (128 * 1024 + 128 * 1024) #define NOOVERLAY (0x04000000) paddr_t cgthree_mmap(void *v, off_t offset, int prot) { struct cgthree_softc *sc = v; if (offset & PGOFSET || offset < 0) return (-1); switch (sc->sc_mode) { case WSDISPLAYIO_MODE_MAPPED: if (offset >= NOOVERLAY) offset -= NOOVERLAY; else if (offset >= START) offset -= START; else offset = 0; if (offset >= sc->sc_sunfb.sf_fbsize) return (-1); return (bus_space_mmap(sc->sc_bustag, sc->sc_paddr, CGTHREE_VID_OFFSET + offset, prot, BUS_SPACE_MAP_LINEAR)); case WSDISPLAYIO_MODE_DUMBFB: if (offset < sc->sc_sunfb.sf_fbsize) return (bus_space_mmap(sc->sc_bustag, sc->sc_paddr, CGTHREE_VID_OFFSET + offset, prot, BUS_SPACE_MAP_LINEAR)); break; } return (-1); } int cgthree_is_console(int node) { extern int fbnode; return (fbnode == node); } 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; 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; cgthree_loadcmap(sc, index, 1); } void cgthree_loadcmap(struct cgthree_softc *sc, u_int start, u_int ncolors) { u_int cstart; int count; cstart = BT_D4M3(start); count = BT_D4M3(start + ncolors - 1) - BT_D4M3(start) + 3; BT_WRITE(sc, BT_ADDR, BT_D4M4(start)); while (--count >= 0) { BT_WRITE(sc, BT_CMAP, sc->sc_cmap.cm_chip[cstart]); cstart++; } } int cg3_bt_getcmap(union bt_cmap *bcm, struct wsdisplay_cmap *rcm) { u_int index = rcm->index, count = rcm->count, i; int error; if (index >= 256 || count > 256 - index) 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 cg3_bt_putcmap(union bt_cmap *bcm, struct wsdisplay_cmap *rcm) { u_int index = rcm->index, count = rcm->count, i; int error; if (index >= 256 || count > 256 - index) 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 cgthree_reset(struct cgthree_softc *sc) { int i, j; u_int8_t sts, ctrl; sts = FBC_READ(sc, CG3_FBC_STAT); ctrl = FBC_READ(sc, CG3_FBC_CTRL); if (ctrl & FBC_CTRL_TIME) { /* already initialized */ return; } for (i = 0; i < sizeof(cg3_videoctrl)/sizeof(cg3_videoctrl[0]); i++) { if (cg3_videoctrl[i].sense == 0xff || (cg3_videoctrl[i].sense == (sts & (FBC_STAT_RES | FBC_STAT_ID)))) { for (j = 0; j < 12; j++) FBC_WRITE(sc, CG3_FBC_VCTRL + j, cg3_videoctrl[i].vctrl[j]); ctrl &= ~(FBC_CTRL_XTAL | FBC_CTRL_DIV); ctrl |= cg3_videoctrl[i].ctrl | FBC_CTRL_TIME; FBC_WRITE(sc, CG3_FBC_CTRL, ctrl); break; } } /* enable all the bit planes */ BT_WRITE(sc, BT_ADDR, BT_RMR); BT_BARRIER(sc, BT_ADDR, BUS_SPACE_BARRIER_WRITE); BT_WRITE(sc, BT_CTRL, 0xff); BT_BARRIER(sc, BT_CTRL, BUS_SPACE_BARRIER_WRITE); /* no plane should blink */ BT_WRITE(sc, BT_ADDR, BT_BMR); BT_BARRIER(sc, BT_ADDR, BUS_SPACE_BARRIER_WRITE); BT_WRITE(sc, BT_CTRL, 0x00); BT_BARRIER(sc, BT_CTRL, BUS_SPACE_BARRIER_WRITE); /* * enable the RAMDAC, disable blink, disable overlay 0 and 1, * use 4:1 multiplexor. */ BT_WRITE(sc, BT_ADDR, BT_CR); BT_BARRIER(sc, BT_ADDR, BUS_SPACE_BARRIER_WRITE); BT_WRITE(sc, BT_CTRL, (BTCR_MPLX_4 | BTCR_RAMENA | BTCR_BLINK_6464)); BT_BARRIER(sc, BT_CTRL, BUS_SPACE_BARRIER_WRITE); /* disable the D/A read pins */ BT_WRITE(sc, BT_ADDR, BT_CTR); BT_BARRIER(sc, BT_ADDR, BUS_SPACE_BARRIER_WRITE); BT_WRITE(sc, BT_CTRL, 0x00); BT_BARRIER(sc, BT_CTRL, BUS_SPACE_BARRIER_WRITE); } void cgthree_burner(void *vsc, u_int on, u_int flags) { struct cgthree_softc *sc = vsc; int s; u_int8_t fbc; s = splhigh(); fbc = FBC_READ(sc, CG3_FBC_CTRL); if (on) fbc |= FBC_CTRL_VENAB | FBC_CTRL_TIME; else { fbc &= ~FBC_CTRL_VENAB; if (flags & WSDISPLAY_BURN_VBLANK) fbc &= ~FBC_CTRL_TIME; } FBC_WRITE(sc, CG3_FBC_CTRL, fbc); splx(s); } void cgthree_updatecursor(struct rasops_info *ri) { struct cgthree_softc *sc = ri->ri_hw; if (sc->sc_sunfb.sf_crowp != NULL) *sc->sc_sunfb.sf_crowp = ri->ri_crow; if (sc->sc_sunfb.sf_ccolp != NULL) *sc->sc_sunfb.sf_ccolp = ri->ri_ccol; }