/* $OpenBSD: p9000.c,v 1.15 2005/07/09 22:22:12 miod Exp $ */ /* * Copyright (c) 2003, Miodrag Vallat. * * 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. */ /* * Driver for the Tadpole SPARCbook 3 on-board display. * Heavily based on the p9100 driver. */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "tctrl.h" #if NTCTRL > 0 #include #endif /* per-display variables */ struct p9000_softc { struct sunfb sc_sunfb; /* common base part */ struct sbusdev sc_sd; /* sbus device */ struct rom_reg sc_phys; /* phys address description */ volatile u_int8_t *sc_cmd; /* command registers (dac, etc) */ volatile u_int8_t *sc_ctl; /* control registers (draw engine) */ union bt_cmap sc_cmap; /* Brooktree color map */ volatile u_int8_t *sc_ramdac; /* BT445 registers */ struct intrhand sc_ih; u_int32_t sc_junk; /* throwaway value */ }; int p9000_ioctl(void *, u_long, caddr_t, int, struct proc *); static __inline__ void p9000_loadcmap_deferred(struct p9000_softc *, u_int, u_int); void p9000_loadcmap_immediate(struct p9000_softc *, u_int, u_int); paddr_t p9000_mmap(void *, off_t, int); void p9000_setcolor(void *, u_int, u_int8_t, u_int8_t, u_int8_t); void p9000_burner(void *, u_int, u_int); int p9000_intr(void *); struct wsdisplay_accessops p9000_accessops = { p9000_ioctl, p9000_mmap, NULL, /* alloc_screen */ NULL, /* free_screen */ NULL, /* show_screen */ NULL, /* load_font */ NULL, /* scrollback */ NULL, /* getchar */ p9000_burner, NULL /* pollc */ }; void p9000_ras_copycols(void *, int, int, int, int); void p9000_ras_copyrows(void *, int, int, int); void p9000_ras_do_cursor(struct rasops_info *); void p9000_ras_erasecols(void *, int, int, int, long int); void p9000_ras_eraserows(void *, int, int, long int); void p9000_ras_init(struct p9000_softc *); int p9000match(struct device *, void *, void *); void p9000attach(struct device *, struct device *, void *); struct cfattach pninek_ca = { sizeof (struct p9000_softc), p9000match, p9000attach }; struct cfdriver pninek_cd = { NULL, "pninek", DV_DULL }; /* * SBus registers mappings */ #define P9000_NREG 5 /* actually, 7 total */ #define P9000_REG_CTL 0 #define P9000_REG_CMD 1 #define P9000_REG_VRAM 4 /* * P9000 read/write macros */ #define P9000_READ_CTL(sc,reg) \ *(volatile u_int32_t *)((sc)->sc_ctl + (reg)) #define P9000_READ_CMD(sc,reg) \ *(volatile u_int32_t *)((sc)->sc_cmd + (reg)) #define P9000_WRITE_CTL(sc,reg,value) \ *(volatile u_int32_t *)((sc)->sc_ctl + (reg)) = (value) #define P9000_WRITE_CMD(sc,reg,value) \ *(volatile u_int32_t *)((sc)->sc_cmd + (reg)) = (value) /* * On the Tadpole, the first write to a register group is ignored until * the proper group address is latched, which can be done by reading from the * register group first. * * Register groups are 0x80 bytes long (i.e. it is necessary to force a read * when writing to an address which upper 25 bit differ from the previous * read or write operation). * * This is specific to the Tadpole design, and not a limitation of the * Power 9000 hardware. */ #define P9000_SELECT_SCR(sc) \ (sc)->sc_junk = P9000_READ_CTL(sc, P9000_SYSTEM_CONFIG) #define P9000_SELECT_VCR(sc) \ (sc)->sc_junk = P9000_READ_CTL(sc, P9000_HCR) #define P9000_SELECT_VRAM(sc) \ (sc)->sc_junk = P9000_READ_CTL(sc, P9000_MCR) #define P9000_SELECT_PE(sc) \ (sc)->sc_junk = P9000_READ_CMD(sc, P9000_PE_STATUS) #define P9000_SELECT_DE_LOW(sc) \ (sc)->sc_junk = P9000_READ_CMD(sc, P9000_DE_FG_COLOR) #define P9000_SELECT_DE_HIGH(sc) \ (sc)->sc_junk = P9000_READ_CMD(sc, P9000_DE_PATTERN(0)) #define P9000_SELECT_COORD(sc,field) \ (sc)->sc_junk = P9000_READ_CMD(sc, field) int p9000match(struct device *parent, void *vcf, void *aux) { struct confargs *ca = aux; struct romaux *ra = &ca->ca_ra; if (strcmp("p9000", ra->ra_name)) return (0); return (1); } void p9000attach(struct device *parent, struct device *self, void *args) { struct p9000_softc *sc = (struct p9000_softc *)self; struct confargs *ca = args; int node, row, isconsole, scr; struct device *btdev; extern struct cfdriver btcham_cd; #ifdef DIAGNOSTIC if (ca->ca_ra.ra_nreg < P9000_NREG) { printf(": expected %d registers, got only %d\n", P9000_NREG, ca->ca_ra.ra_nreg); return; } #endif /* * Find the RAMDAC device. It should have attached before, since it * attaches at obio. If, for some reason, it did not, it's not worth * going any further. * * We rely upon the PROM to properly initialize the RAMDAC in a safe * mode. */ btdev = btcham_cd.cd_ndevs != 0 ? btcham_cd.cd_devs[0] : NULL; if (btdev != NULL) sc->sc_ramdac = ((struct bt445_softc *)btdev)->sc_regs; if (sc->sc_ramdac == NULL) { printf(": bt445 did not attach previously\n"); return; } sc->sc_phys = ca->ca_ra.ra_reg[P9000_REG_VRAM]; sc->sc_ctl = mapiodev(&(ca->ca_ra.ra_reg[P9000_REG_CTL]), 0, ca->ca_ra.ra_reg[0].rr_len); sc->sc_cmd = mapiodev(&(ca->ca_ra.ra_reg[P9000_REG_CMD]), 0, ca->ca_ra.ra_reg[1].rr_len); node = ca->ca_ra.ra_node; isconsole = node == fbnode; fb_setsize(&sc->sc_sunfb, 8, 640, 480, node, ca->ca_bustype); sc->sc_sunfb.sf_ro.ri_bits = mapiodev(&sc->sc_phys, 0, round_page(sc->sc_sunfb.sf_fbsize)); sc->sc_sunfb.sf_ro.ri_hw = sc; P9000_SELECT_SCR(sc); scr = P9000_READ_CTL(sc, P9000_SYSTEM_CONFIG); printf(": rev %x, %dx%d\n", scr & SCR_ID_MASK, sc->sc_sunfb.sf_width, sc->sc_sunfb.sf_height); /* Disable frame buffer interrupts */ P9000_SELECT_SCR(sc); P9000_WRITE_CTL(sc, P9000_INTERRUPT_ENABLE, IER_MASTER_ENABLE | 0); sc->sc_ih.ih_fun = p9000_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); /* * If the framebuffer width is under 1024x768, we will 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, p9000_setcolor); /* * Plug-in accelerated console operations. */ p9000_ras_init(sc); sbus_establish(&sc->sc_sd, &sc->sc_sunfb.sf_dev); /* enable video */ p9000_burner(sc, 1, 0); if (isconsole) { if (sc->sc_sunfb.sf_width < 1024) row = 0; /* screen has been cleared above */ else row = -1; fbwscons_console_init(&sc->sc_sunfb, row); } fbwscons_attach(&sc->sc_sunfb, &p9000_accessops, isconsole); } int p9000_ioctl(void *v, u_long cmd, caddr_t data, int flags, struct proc *p) { struct p9000_softc *sc = v; struct wsdisplay_fbinfo *wdf; struct wsdisplay_cmap *cm; #if NTCTRL > 0 struct wsdisplay_param *dp; #endif int error; switch (cmd) { case WSDISPLAYIO_GTYPE: *(u_int *)data = WSDISPLAY_TYPE_SB_P9000; break; case WSDISPLAYIO_SMODE: /* Restore proper acceleration state upon leaving X11 */ if (*(u_int *)data == WSDISPLAYIO_MODE_EMUL) { p9000_ras_init(sc); } 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); p9000_loadcmap_deferred(sc, cm->index, cm->count); break; #if NTCTRL > 0 case WSDISPLAYIO_GETPARAM: dp = (struct wsdisplay_param *)data; switch (dp->param) { case WSDISPLAYIO_PARAM_BRIGHTNESS: dp->min = 0; dp->max = 255; dp->curval = tadpole_get_brightness(); break; case WSDISPLAYIO_PARAM_BACKLIGHT: dp->min = 0; dp->max = 1; dp->curval = tadpole_get_video() & TV_ON ? 1 : 0; break; default: return (-1); } break; case WSDISPLAYIO_SETPARAM: dp = (struct wsdisplay_param *)data; switch (dp->param) { case WSDISPLAYIO_PARAM_BRIGHTNESS: tadpole_set_brightness(dp->curval); break; case WSDISPLAYIO_PARAM_BACKLIGHT: tadpole_set_video(dp->curval); break; default: return (-1); } break; #endif /* NTCTRL > 0 */ 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 p9000_mmap(void *v, off_t offset, int prot) { struct p9000_softc *sc = v; if (offset & PGOFSET) return (-1); if (offset >= 0 && offset < sc->sc_sunfb.sf_fbsize) { return (REG2PHYS(&sc->sc_phys, offset) | PMAP_NC); } return (-1); } void p9000_setcolor(void *v, u_int index, u_int8_t r, u_int8_t g, u_int8_t b) { struct p9000_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; p9000_loadcmap_immediate(sc, index, 1); } void p9000_loadcmap_immediate(struct p9000_softc *sc, u_int start, u_int ncolors) { sc->sc_ramdac[BT445_ADDRESS] = start; for (ncolors += start; start < ncolors; start++) { sc->sc_ramdac[BT445_PALDATA] = sc->sc_cmap.cm_map[start][0]; sc->sc_ramdac[BT445_PALDATA] = sc->sc_cmap.cm_map[start][1]; sc->sc_ramdac[BT445_PALDATA] = sc->sc_cmap.cm_map[start][2]; } } static __inline__ void p9000_loadcmap_deferred(struct p9000_softc *sc, u_int start, u_int ncolors) { /* Schedule an interrupt for next retrace */ P9000_SELECT_SCR(sc); P9000_WRITE_CTL(sc, P9000_INTERRUPT_ENABLE, IER_MASTER_ENABLE | IER_MASTER_INTERRUPT | IER_VBLANK_ENABLE | IER_VBLANK_INTERRUPT); } void p9000_burner(void *v, u_int on, u_int flags) { struct p9000_softc *sc = v; u_int32_t vcr; int s; s = splhigh(); P9000_SELECT_VCR(sc); vcr = P9000_READ_CTL(sc, P9000_SRTC1); if (on) vcr |= SRTC1_VIDEN; else vcr &= ~SRTC1_VIDEN; P9000_WRITE_CTL(sc, P9000_SRTC1, vcr); #if NTCTRL > 0 tadpole_set_video(on); #endif splx(s); } int p9000_intr(void *v) { struct p9000_softc *sc = v; if (P9000_READ_CTL(sc, P9000_INTERRUPT) & IER_VBLANK_INTERRUPT) { p9000_loadcmap_immediate(sc, 0, 256); /* Disable further interrupts now */ /* P9000_SELECT_SCR(sc); */ P9000_WRITE_CTL(sc, P9000_INTERRUPT_ENABLE, IER_MASTER_ENABLE | 0); /* Clear interrupt condition */ P9000_WRITE_CTL(sc, P9000_INTERRUPT, IER_VBLANK_ENABLE | 0); return (1); } return (0); } /* * Accelerated text console code */ static int p9000_drain(struct p9000_softc *); static int p9000_drain(struct p9000_softc *sc) { u_int i; for (i = 10000; i != 0; i--) { if ((P9000_READ_CMD(sc, P9000_PE_STATUS) & (STATUS_QUAD_BUSY | STATUS_BLIT_BUSY)) == 0) break; } return (i); } void p9000_ras_init(struct p9000_softc *sc) { if (p9000_drain(sc) == 0) return; sc->sc_sunfb.sf_ro.ri_ops.copycols = p9000_ras_copycols; sc->sc_sunfb.sf_ro.ri_ops.copyrows = p9000_ras_copyrows; sc->sc_sunfb.sf_ro.ri_ops.erasecols = p9000_ras_erasecols; sc->sc_sunfb.sf_ro.ri_ops.eraserows = p9000_ras_eraserows; sc->sc_sunfb.sf_ro.ri_do_cursor = p9000_ras_do_cursor; /* * Setup safe defaults for the parameter and drawing engines, in * order to minimize the operations to do for ri_ops. */ P9000_SELECT_DE_LOW(sc); P9000_WRITE_CMD(sc, P9000_DE_DRAWMODE, DM_PICK_CONTROL | 0 | DM_BUFFER_CONTROL | DM_BUFFER_ENABLE0); P9000_WRITE_CMD(sc, P9000_DE_PATTERN_ORIGIN_X, 0); P9000_WRITE_CMD(sc, P9000_DE_PATTERN_ORIGIN_Y, 0); /* enable all planes */ P9000_WRITE_CMD(sc, P9000_DE_PLANEMASK, 0xff); /* Unclip */ P9000_WRITE_CMD(sc, P9000_DE_WINMIN, 0); P9000_WRITE_CMD(sc, P9000_DE_WINMAX, P9000_COORDS(sc->sc_sunfb.sf_width - 1, sc->sc_sunfb.sf_height - 1)); P9000_SELECT_PE(sc); P9000_WRITE_CMD(sc, P9000_PE_WINOFFSET, 0); P9000_WRITE_CMD(sc, P9000_PE_INDEX, 0); P9000_WRITE_CMD(sc, P9000_PE_WINMIN, 0); P9000_WRITE_CMD(sc, P9000_PE_WINMAX, P9000_COORDS(sc->sc_sunfb.sf_width - 1, sc->sc_sunfb.sf_height - 1)); } void p9000_ras_copycols(void *v, int row, int src, int dst, int n) { struct rasops_info *ri = v; struct p9000_softc *sc = ri->ri_hw; n *= ri->ri_font->fontwidth; n--; src *= ri->ri_font->fontwidth; src += ri->ri_xorigin; dst *= ri->ri_font->fontwidth; dst += ri->ri_xorigin; row *= ri->ri_font->fontheight; row += ri->ri_yorigin; p9000_drain(sc); P9000_SELECT_DE_LOW(sc); P9000_WRITE_CMD(sc, P9000_DE_RASTER, P9000_RASTER_SRC & P9000_RASTER_MASK); P9000_SELECT_COORD(sc, P9000_DC_COORD(0)); P9000_WRITE_CMD(sc, P9000_DC_COORD(0) + P9000_COORD_XY, P9000_COORDS(src, row)); P9000_WRITE_CMD(sc, P9000_DC_COORD(1) + P9000_COORD_XY, P9000_COORDS(src + n, row + ri->ri_font->fontheight - 1)); P9000_SELECT_COORD(sc, P9000_DC_COORD(2)); P9000_WRITE_CMD(sc, P9000_DC_COORD(2) + P9000_COORD_XY, P9000_COORDS(dst, row)); P9000_WRITE_CMD(sc, P9000_DC_COORD(3) + P9000_COORD_XY, P9000_COORDS(dst + n, row + ri->ri_font->fontheight - 1)); sc->sc_junk = P9000_READ_CMD(sc, P9000_PE_BLIT); p9000_drain(sc); } void p9000_ras_copyrows(void *v, int src, int dst, int n) { struct rasops_info *ri = v; struct p9000_softc *sc = ri->ri_hw; n *= ri->ri_font->fontheight; n--; src *= ri->ri_font->fontheight; src += ri->ri_yorigin; dst *= ri->ri_font->fontheight; dst += ri->ri_yorigin; p9000_drain(sc); P9000_SELECT_DE_LOW(sc); P9000_WRITE_CMD(sc, P9000_DE_RASTER, P9000_RASTER_SRC & P9000_RASTER_MASK); P9000_SELECT_COORD(sc, P9000_DC_COORD(0)); P9000_WRITE_CMD(sc, P9000_DC_COORD(0) + P9000_COORD_XY, P9000_COORDS(ri->ri_xorigin, src)); P9000_WRITE_CMD(sc, P9000_DC_COORD(1) + P9000_COORD_XY, P9000_COORDS(ri->ri_xorigin + ri->ri_emuwidth - 1, src + n)); P9000_SELECT_COORD(sc, P9000_DC_COORD(2)); P9000_WRITE_CMD(sc, P9000_DC_COORD(2) + P9000_COORD_XY, P9000_COORDS(ri->ri_xorigin, dst)); P9000_WRITE_CMD(sc, P9000_DC_COORD(3) + P9000_COORD_XY, P9000_COORDS(ri->ri_xorigin + ri->ri_emuwidth - 1, dst + n)); sc->sc_junk = P9000_READ_CMD(sc, P9000_PE_BLIT); p9000_drain(sc); } void p9000_ras_erasecols(void *v, int row, int col, int n, long int attr) { struct rasops_info *ri = v; struct p9000_softc *sc = ri->ri_hw; int fg, bg; rasops_unpack_attr(attr, &fg, &bg, NULL); n *= ri->ri_font->fontwidth; col *= ri->ri_font->fontwidth; col += ri->ri_xorigin; row *= ri->ri_font->fontheight; row += ri->ri_yorigin; p9000_drain(sc); P9000_SELECT_DE_LOW(sc); P9000_WRITE_CMD(sc, P9000_DE_RASTER, P9000_RASTER_PATTERN & P9000_RASTER_MASK); P9000_WRITE_CMD(sc, P9000_DE_FG_COLOR, bg); P9000_SELECT_COORD(sc, P9000_LC_RECT); P9000_WRITE_CMD(sc, P9000_LC_RECT + P9000_COORD_XY, P9000_COORDS(col, row)); P9000_WRITE_CMD(sc, P9000_LC_RECT + P9000_COORD_XY, P9000_COORDS(col + n, row + ri->ri_font->fontheight)); sc->sc_junk = P9000_READ_CMD(sc, P9000_PE_QUAD); p9000_drain(sc); } void p9000_ras_eraserows(void *v, int row, int n, long int attr) { struct rasops_info *ri = v; struct p9000_softc *sc = ri->ri_hw; int fg, bg; rasops_unpack_attr(attr, &fg, &bg, NULL); p9000_drain(sc); P9000_SELECT_DE_LOW(sc); P9000_WRITE_CMD(sc, P9000_DE_RASTER, P9000_RASTER_PATTERN & P9000_RASTER_MASK); P9000_WRITE_CMD(sc, P9000_DE_FG_COLOR, bg); P9000_SELECT_COORD(sc, P9000_LC_RECT); if (n == ri->ri_rows && ISSET(ri->ri_flg, RI_FULLCLEAR)) { P9000_WRITE_CMD(sc, P9000_LC_RECT + P9000_COORD_XY, P9000_COORDS(0, 0)); P9000_WRITE_CMD(sc, P9000_LC_RECT + P9000_COORD_XY, P9000_COORDS(ri->ri_width, ri->ri_height)); } else { n *= ri->ri_font->fontheight; row *= ri->ri_font->fontheight; row += ri->ri_yorigin; P9000_WRITE_CMD(sc, P9000_LC_RECT + P9000_COORD_XY, P9000_COORDS(ri->ri_xorigin, row)); P9000_WRITE_CMD(sc, P9000_LC_RECT + P9000_COORD_XY, P9000_COORDS(ri->ri_xorigin + ri->ri_emuwidth, row + n)); } sc->sc_junk = P9000_READ_CMD(sc, P9000_PE_QUAD); p9000_drain(sc); } void p9000_ras_do_cursor(struct rasops_info *ri) { struct p9000_softc *sc = ri->ri_hw; int row, col; row = ri->ri_crow * ri->ri_font->fontheight + ri->ri_yorigin; col = ri->ri_ccol * ri->ri_font->fontwidth + ri->ri_xorigin; p9000_drain(sc); P9000_SELECT_DE_LOW(sc); P9000_WRITE_CMD(sc, P9000_DE_RASTER, (P9000_RASTER_PATTERN ^ P9000_RASTER_DST) & P9000_RASTER_MASK); P9000_WRITE_CMD(sc, P9000_DE_FG_COLOR, WSCOL_BLACK); P9000_SELECT_COORD(sc, P9000_LC_RECT); P9000_WRITE_CMD(sc, P9000_LC_RECT + P9000_COORD_XY, P9000_COORDS(col, row)); P9000_WRITE_CMD(sc, P9000_LC_RECT + P9000_COORD_XY, P9000_COORDS(col + ri->ri_font->fontwidth, row + ri->ri_font->fontheight)); sc->sc_junk = P9000_READ_CMD(sc, P9000_PE_QUAD); p9000_drain(sc); }