Module Name:    src
Committed By:   macallan
Date:           Thu Aug  6 18:26:03 UTC 2009

Modified Files:
        src/sys/dev/sbus: files.sbus tcx.c tcxreg.h

Log Message:
make the tcx driver do something useful:
- attach a wsdisplay
- make it work with an S24
- accelerate scrolling and character drawing
This isn't quite finished yet, it works fine as a console but most things
X will need are not functional right now.


To generate a diff of this commit:
cvs rdiff -u -r1.32 -r1.33 src/sys/dev/sbus/files.sbus
cvs rdiff -u -r1.31 -r1.32 src/sys/dev/sbus/tcx.c
cvs rdiff -u -r1.4 -r1.5 src/sys/dev/sbus/tcxreg.h

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.

Modified files:

Index: src/sys/dev/sbus/files.sbus
diff -u src/sys/dev/sbus/files.sbus:1.32 src/sys/dev/sbus/files.sbus:1.33
--- src/sys/dev/sbus/files.sbus:1.32	Thu Apr 23 20:46:49 2009
+++ src/sys/dev/sbus/files.sbus	Thu Aug  6 18:26:03 2009
@@ -1,4 +1,4 @@
-#	$NetBSD: files.sbus,v 1.32 2009/04/23 20:46:49 macallan Exp $
+#	$NetBSD: files.sbus,v 1.33 2009/08/06 18:26:03 macallan Exp $
 #
 # Config file and device description for machine-independent SBUS code.
 # Included by ports that need it.
@@ -115,7 +115,7 @@
 file	dev/sbus/cgthree_sbus.c		cgthree_sbus
 
 # framebuffer devices implemented only on SBus
-device	tcx: bt_dac, fb, rasops8, rasops24
+device	tcx: bt_dac, fb, rasops8, wsemuldisplaydev, vcons
 attach	tcx at sbus
 file	dev/sbus/tcx.c			tcx needs-flag
 
@@ -125,6 +125,7 @@
 
 # Tadpole 3GX/3GS (P9100 -- P Nine One Zero Zero -> pnozz)
 defflag	opt_pnozz.h	PNOZZ_DEBUG
+defflag opt_pnozz.h	PNOZZ_EMUL_CG3
 device	pnozz: fb, rasops8, bt_dac, wsemuldisplaydev, vcons
 attach	pnozz at sbus
 file	dev/sbus/p9100.c		pnozz needs-flag

Index: src/sys/dev/sbus/tcx.c
diff -u src/sys/dev/sbus/tcx.c:1.31 src/sys/dev/sbus/tcx.c:1.32
--- src/sys/dev/sbus/tcx.c:1.31	Tue May 12 14:43:59 2009
+++ src/sys/dev/sbus/tcx.c	Thu Aug  6 18:26:03 2009
@@ -1,4 +1,4 @@
-/*	$NetBSD: tcx.c,v 1.31 2009/05/12 14:43:59 cegger Exp $ */
+/*	$NetBSD: tcx.c,v 1.32 2009/08/06 18:26:03 macallan Exp $ */
 
 /*
  *  Copyright (c) 1996,1998 The NetBSD Foundation, Inc.
@@ -38,7 +38,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: tcx.c,v 1.31 2009/05/12 14:43:59 cegger Exp $");
+__KERNEL_RCSID(0, "$NetBSD: tcx.c,v 1.32 2009/08/06 18:26:03 macallan Exp $");
 
 /*
  * define for cg8 emulation on S24 (24-bit version of tcx) for the SS5;
@@ -72,6 +72,15 @@
 #include <dev/sbus/sbusvar.h>
 #include <dev/sbus/tcxreg.h>
 
+#include <dev/wscons/wsdisplayvar.h>
+#include <dev/wscons/wsconsio.h>
+#include <dev/wsfont/wsfont.h>
+#include <dev/rasops/rasops.h>
+
+#include <dev/wscons/wsdisplay_vconsvar.h>
+
+#include "opt_wsemul.h"
+
 /* per-display variables */
 struct tcx_softc {
 	struct device	sc_dev;		/* base device */
@@ -80,14 +89,41 @@
 	bus_space_tag_t	sc_bustag;
 	struct openprom_addr sc_physadr[TCX_NREG];/* phys addr of h/w */
 
-	volatile struct bt_regs *sc_bt;	/* Brooktree registers */
-	volatile struct tcx_thc *sc_thc;/* THC registers */
-#ifdef TCX_CG8
-	volatile ulong *sc_cplane;	/* framebuffer with control planes */
-#endif
+	bus_space_handle_t sc_bt;	/* Brooktree registers */
+	bus_space_handle_t sc_thc;	/* THC registers */
+	uint8_t *sc_fbaddr;		/* framebuffer */
+	uint64_t *sc_rblit;		/* blitspace */
+	uint64_t *sc_rstip;		/* stipple space */
+
 	short	sc_8bit;		/* true if 8-bit hardware */
 	short	sc_blanked;		/* true if blanked */
-	union	bt_cmap sc_cmap;	/* Brooktree color map */
+	u_char	sc_cmap_red[256];
+	u_char	sc_cmap_green[256];
+	u_char	sc_cmap_blue[256];
+	int 	sc_mode, sc_bg;
+	struct vcons_data vd;
+};
+
+static struct vcons_screen tcx_console_screen;
+
+extern const u_char rasops_cmap[768];
+
+struct wsscreen_descr tcx_defscreendesc = {
+	"default",
+	0, 0,
+	NULL,
+	8, 16,
+	WSSCREEN_WSCOLORS,
+};
+
+const struct wsscreen_descr *_tcx_scrlist[] = {
+	&tcx_defscreendesc,
+	/* XXX other formats, graphics screen? */
+};
+
+struct wsscreen_list tcx_screenlist = {
+	sizeof(_tcx_scrlist) / sizeof(struct wsscreen_descr *),
+	_tcx_scrlist
 };
 
 /*
@@ -134,6 +170,26 @@
 static void tcx_reset(struct tcx_softc *);
 static void tcx_loadcmap(struct tcx_softc *, int, int);
 
+static int	tcx_ioctl(void *, void *, u_long, void *, int, struct lwp *);
+static paddr_t	tcx_mmap(void *, void *, off_t, int);
+
+static void	tcx_init_screen(void *, struct vcons_screen *, int, long *);
+static void	tcx_clearscreen(struct tcx_softc *);
+static void	tcx_copyrows(void *, int, int, int);
+static void	tcx_eraserows(void *, int, int, long);
+static void	tcx_putchar(void *, int, int, u_int, long);
+
+struct wsdisplay_accessops tcx_accessops = {
+	tcx_ioctl,
+	tcx_mmap,
+	NULL,	/* vcons_alloc_screen */
+	NULL,	/* vcons_free_screen */
+	NULL,	/* vcons_show_screen */
+	NULL,	/* load_font */
+	NULL,	/* polls */
+	NULL,	/* scroll */
+};
+
 #define OBPNAME	"SUNW,tcx"
 
 #ifdef TCX_CG8
@@ -168,11 +224,14 @@
 {
 	struct tcx_softc *sc = device_private(self);
 	struct sbus_attach_args *sa = args;
+	struct wsemuldisplaydev_attach_args aa;
+	struct rasops_info *ri;
+	unsigned long defattr;
 	int node, ramsize;
-	volatile struct bt_regs *bt;
 	struct fbdevice *fb = &sc->sc_fb;
 	bus_space_handle_t bh;
-	int isconsole;
+	int isconsole, i, j;
+	uint32_t confreg;
 
 	sc->sc_bustag = sa->sa_bustag;
 	node = sa->sa_node;
@@ -187,65 +246,27 @@
 	 * presence of the "tcx-8-bit" attribute on the SS4 version.
 	 */
 	sc->sc_8bit = node_has_property(node, "tcx-8-bit");
-#ifdef TCX_CG8
-	if (sc->sc_8bit) {
-#endif
-		/*
-		 * cg8 emulation is either not compiled in or not supported
-		 * on this hardware.  Report values for the 8-bit framebuffer
-		 * so cg3 emulation works.  (If this hardware supports
-		 * 24-bit mode, the 24-bit framebuffer will also be available)
-		 */
-		fb->fb_type.fb_depth = 8;
-		fb_setsize_obp(fb, fb->fb_type.fb_depth, 1152, 900, node);
+	fb->fb_type.fb_depth = 8;
+	fb_setsize_obp(fb, fb->fb_type.fb_depth, 1152, 900, node);
 
-		ramsize = fb->fb_type.fb_height * fb->fb_linebytes;
-#ifdef TCX_CG8
+	if (sc->sc_8bit) {
+		printf(" {8bit only TCX)");
+		ramsize = 1024 * 1024;
+		/* XXX - fix THC and TEC offsets */
+		sc->sc_physadr[TCX_REG_TEC].oa_base += 0x1000;
+		sc->sc_physadr[TCX_REG_THC].oa_base += 0x1000;
 	} else {
-		/*
-		 * for cg8 emulation, unconditionally report the depth as
-		 * 32 bits, but use the height and width reported by the
-		 * boot prom.  cg8 users want to see the full size of
-		 * overlay planes plus color planes included in the
-		 * reported framebuffer size.
-		 */
-		fb->fb_type.fb_depth = 32;
-		fb_setsize_obp(fb, fb->fb_type.fb_depth, 1152, 900, node);
-		fb->fb_linebytes =
-			(fb->fb_type.fb_width * fb->fb_type.fb_depth) / 8;
-		ramsize = TCX_CG8OVERLAY +
-			(fb->fb_type.fb_height * fb->fb_linebytes);
+		printf(" (S24)\n");
+		ramsize = 4 * 1024 * 1024;
 	}
-#endif
+
 	fb->fb_type.fb_cmsize = 256;
 	fb->fb_type.fb_size = ramsize;
 	printf(": %s, %d x %d", OBPNAME,
 		fb->fb_type.fb_width,
 		fb->fb_type.fb_height);
-#ifdef TCX_CG8
-	/*
-	 * if cg8 emulation is enabled, say so; but if hardware can't
-	 * emulate cg8, explain that instead
-	 */
-	printf( (sc->sc_8bit)?
-		" (8-bit only)" :
-		" (emulating cg8)");
-#endif
 
-	/*
-	 * XXX - should be set to FBTYPE_TCX.
-	 * XXX For CG3 emulation to work in current (96/6) X11 servers,
-	 * XXX `fbtype' must point to an "unregocnised" entry.
-	 */
-#ifdef TCX_CG8
-	if (sc->sc_8bit) {
-		fb->fb_type.fb_type = FBTYPE_RESERVED3;
-	} else {
-		fb->fb_type.fb_type = FBTYPE_MEMCOLOR;
-	}
-#else
-	fb->fb_type.fb_type = FBTYPE_RESERVED3;
-#endif
+	fb->fb_type.fb_type = FBTYPE_SUNTCX;
 
 
 	if (sa->sa_nreg != TCX_NREG) {
@@ -256,73 +277,135 @@
 	memcpy(sc->sc_physadr, sa->sa_reg,
 	      sa->sa_nreg * sizeof(struct openprom_addr));
 
-	/* XXX - fix THC and TEC offsets */
-	sc->sc_physadr[TCX_REG_TEC].oa_base += 0x1000;
-	sc->sc_physadr[TCX_REG_THC].oa_base += 0x1000;
-
 	/* Map the register banks we care about */
 	if (sbus_bus_map(sa->sa_bustag,
 			 sc->sc_physadr[TCX_REG_THC].oa_space,
 			 sc->sc_physadr[TCX_REG_THC].oa_base,
-			 sizeof (struct tcx_thc),
-			 BUS_SPACE_MAP_LINEAR, &bh) != 0) {
+			 0x1000,
+			 BUS_SPACE_MAP_LINEAR, &sc->sc_thc) != 0) {
 		printf("tcxattach: cannot map thc registers\n");
 		return;
 	}
-	sc->sc_thc = (volatile struct tcx_thc *)
-		bus_space_vaddr(sa->sa_bustag, bh);
 
 	if (sbus_bus_map(sa->sa_bustag,
 			 sc->sc_physadr[TCX_REG_CMAP].oa_space,
 			 sc->sc_physadr[TCX_REG_CMAP].oa_base,
-			 sizeof (struct bt_regs),
-			 BUS_SPACE_MAP_LINEAR, &bh) != 0) {
+			 0x1000,
+			 BUS_SPACE_MAP_LINEAR, &sc->sc_bt) != 0) {
 		printf("tcxattach: cannot map bt registers\n");
 		return;
 	}
-	sc->sc_bt = bt = (volatile struct bt_regs *)
-		bus_space_vaddr(sa->sa_bustag, bh);
 
-#ifdef TCX_CG8
-	if (!sc->sc_8bit) {
-		if (sbus_bus_map(sa->sa_bustag,
-			 sc->sc_physadr[TCX_REG_RDFB32].oa_space,
-			 sc->sc_physadr[TCX_REG_RDFB32].oa_base,
-			 TCX_SIZE_DFB32,
+	/* map the 8bit dumb FB for the console */
+	if (sbus_bus_map(sa->sa_bustag,
+		 sc->sc_physadr[TCX_REG_DFB8].oa_space,
+		 sc->sc_physadr[TCX_REG_DFB8].oa_base,
+			 1024 * 1024,
 			 BUS_SPACE_MAP_LINEAR,
 			 &bh) != 0) {
-			printf("tcxattach: cannot map control planes\n");
-			return;
-		}
-		sc->sc_cplane = (volatile ulong *)bh;
+		printf("tcxattach: cannot map framebuffer\n");
+		return;
 	}
-#endif
+	sc->sc_fbaddr = bus_space_vaddr(sa->sa_bustag, bh);
+
+	/* RBLIT space */
+	if (sbus_bus_map(sa->sa_bustag,
+		 sc->sc_physadr[TCX_REG_RBLIT].oa_space,
+		 sc->sc_physadr[TCX_REG_RBLIT].oa_base,
+			 8 * 1024 * 1024,
+			 BUS_SPACE_MAP_LINEAR | BUS_SPACE_MAP_LARGE,
+			 &bh) != 0) {
+		printf("tcxattach: cannot map RBLIT space\n");
+		return;
+	}
+	sc->sc_rblit = bus_space_vaddr(sa->sa_bustag, bh);
+
+	/* RSTIP space */
+	if (sbus_bus_map(sa->sa_bustag,
+		 sc->sc_physadr[TCX_REG_RSTIP].oa_space,
+		 sc->sc_physadr[TCX_REG_RSTIP].oa_base,
+			 8 * 1024 * 1024,
+			 BUS_SPACE_MAP_LINEAR | BUS_SPACE_MAP_LARGE,
+			 &bh) != 0) {
+		printf("tcxattach: cannot map RSTIP space\n");
+		return;
+	}
+	sc->sc_rstip = bus_space_vaddr(sa->sa_bustag, bh);
 
 	isconsole = fb_is_console(node);
 
+	confreg = bus_space_read_4(sa->sa_bustag, sc->sc_thc, THC_CONFIG);
 	printf(", id %d, rev %d, sense %d",
-		(sc->sc_thc->thc_config & THC_CFG_FBID) >> THC_CFG_FBID_SHIFT,
-		(sc->sc_thc->thc_config & THC_CFG_REV) >> THC_CFG_REV_SHIFT,
-		(sc->sc_thc->thc_config & THC_CFG_SENSE) >> THC_CFG_SENSE_SHIFT
+		(confreg & THC_CFG_FBID) >> THC_CFG_FBID_SHIFT,
+		(confreg & THC_CFG_REV) >> THC_CFG_REV_SHIFT,
+		(confreg & THC_CFG_SENSE) >> THC_CFG_SENSE_SHIFT
 	);
 
 	/* reset cursor & frame buffer controls */
 	tcx_reset(sc);
 
 	/* Initialize the default color map. */
-	bt_initcmap(&sc->sc_cmap, 256);
+	j = 0;
+	for (i = 0; i < 256; i++) {
+
+		sc->sc_cmap_red[i] = rasops_cmap[j];
+		sc->sc_cmap_green[i] = rasops_cmap[j + 1];
+		sc->sc_cmap_blue[i] = rasops_cmap[j + 2];
+		j += 3;
+	}
 	tcx_loadcmap(sc, 0, 256);
 
 	/* enable video */
-	sc->sc_thc->thc_hcmisc |= THC_MISC_VIDEN;
+	confreg = bus_space_read_4(sa->sa_bustag, sc->sc_thc, THC_MISC);
+	confreg |= THC_MISC_VIDEN;
+	bus_space_write_4(sa->sa_bustag, sc->sc_thc, THC_MISC, confreg);
 
 	if (isconsole) {
 		printf(" (console)\n");
 	} else
 		printf("\n");
 
+	bus_space_write_4(sa->sa_bustag, sc->sc_bt, DAC_ADDRESS, 0);
+	printf("DAC ID: %02x %02x\n",
+	    bus_space_read_1(sa->sa_bustag, sc->sc_bt, DAC_CONTROL_1),
+	    bus_space_read_1(sa->sa_bustag, sc->sc_bt, DAC_CONTROL_1));
 	sbus_establish(&sc->sc_sd, &sc->sc_dev);
 	fb_attach(&sc->sc_fb, isconsole);
+
+	sc->sc_mode = WSDISPLAYIO_MODE_EMUL;
+	wsfont_init();
+
+	vcons_init(&sc->vd, sc, &tcx_defscreendesc, &tcx_accessops);
+	sc->vd.init_screen = tcx_init_screen;
+
+	vcons_init_screen(&sc->vd, &tcx_console_screen, 1, &defattr);
+	tcx_console_screen.scr_flags |= VCONS_SCREEN_IS_STATIC;
+
+	sc->sc_bg = (defattr >> 16) & 0xff;
+	tcx_clearscreen(sc);
+
+	ri = &tcx_console_screen.scr_ri;
+
+	tcx_defscreendesc.nrows = ri->ri_rows;
+	tcx_defscreendesc.ncols = ri->ri_cols;
+	tcx_defscreendesc.textops = &ri->ri_ops;
+	tcx_defscreendesc.capabilities = ri->ri_caps;
+
+	if(isconsole) {
+		wsdisplay_cnattach(&tcx_defscreendesc, ri, 0, 0, defattr);
+	}
+
+	aa.console = isconsole;
+	aa.scrdata = &tcx_screenlist;
+	aa.accessops = &tcx_accessops;
+	aa.accesscookie = &sc->vd;
+
+	config_found(self, &aa, wsemuldisplaydevprint);
+	/*
+	 * we need to do this again - something overwrites a handful
+	 * palette registers and we end up with white in reg. 0
+	 */
+	tcx_loadcmap(sc, 0, 256);
 }
 
 #ifdef TCX_CG8
@@ -407,7 +490,7 @@
 tcxioctl(dev_t dev, u_long cmd, void *data, int flags, struct lwp *l)
 {
 	struct tcx_softc *sc = device_lookup_private(&tcx_cd, minor(dev));
-	int error;
+	//int error;
 
 	switch (cmd) {
 
@@ -428,7 +511,7 @@
 		fba->emu_types[2] = -1;
 #undef fba
 		break;
-
+#if 0
 	case FBIOGETCMAP:
 #define	p ((struct fbcmap *)data)
 		return (bt_getcmap(p, &sc->sc_cmap, 256, 1));
@@ -452,7 +535,7 @@
 		tcx_loadcmap(sc, p->index, p->count);
 #undef p
 		break;
-
+#endif
 	case FBIOGVIDEO:
 		*(int *)data = sc->sc_blanked;
 		break;
@@ -462,10 +545,10 @@
 			tcx_unblank(&sc->sc_dev);
 		else if (!sc->sc_blanked) {
 			sc->sc_blanked = 1;
-			sc->sc_thc->thc_hcmisc &= ~THC_MISC_VIDEN;
+			//sc->sc_thc->thc_hcmisc &= ~THC_MISC_VIDEN;
 			/* Put monitor in `power-saving mode' */
-			sc->sc_thc->thc_hcmisc |= THC_MISC_VSYNC_DISABLE;
-			sc->sc_thc->thc_hcmisc |= THC_MISC_HSYNC_DISABLE;
+			//sc->sc_thc->thc_hcmisc |= THC_MISC_VSYNC_DISABLE;
+			//sc->sc_thc->thc_hcmisc |= THC_MISC_HSYNC_DISABLE;
 		}
 		break;
 
@@ -485,12 +568,11 @@
 static void
 tcx_reset(struct tcx_softc *sc)
 {
-	volatile struct bt_regs *bt;
 
 	/* Enable cursor in Brooktree DAC. */
-	bt = sc->sc_bt;
-	bt->bt_addr = 0x06 << 24;
-	bt->bt_ctrl |= 0x03 << 24;
+	/* TODO: bus_spacify */
+//	bt->bt_addr = 0x06 << 24;
+//	bt->bt_ctrl |= 0x03 << 24;
 }
 
 /*
@@ -499,22 +581,19 @@
 static void
 tcx_loadcmap(struct tcx_softc *sc, int start, int ncolors)
 {
-	volatile struct bt_regs *bt;
-	u_int *ip, i;
-	int count;
-
-	ip = &sc->sc_cmap.cm_chip[BT_D4M3(start)];	/* start/4 * 3 */
-	count = BT_D4M3(start + ncolors - 1) - BT_D4M3(start) + 3;
-	bt = sc->sc_bt;
-	bt->bt_addr = BT_D4M4(start) << 24;
-	while (--count >= 0) {
-		i = *ip++;
-		/* hardware that makes one want to pound boards with hammers */
-		bt->bt_cmap = i;
-		bt->bt_cmap = i << 8;
-		bt->bt_cmap = i << 16;
-		bt->bt_cmap = i << 24;
+	int i;
+
+	for (i = 0; i < ncolors; i++) {
+		bus_space_write_4(sc->sc_bustag, sc->sc_bt, DAC_ADDRESS,
+		    (start + i) << 24);
+		bus_space_write_4(sc->sc_bustag, sc->sc_bt, DAC_FB_LUT,
+		    sc->sc_cmap_red[i + start] << 24);
+		bus_space_write_4(sc->sc_bustag, sc->sc_bt, DAC_FB_LUT,
+		    sc->sc_cmap_green[i + start] << 24);
+		bus_space_write_4(sc->sc_bustag, sc->sc_bt, DAC_FB_LUT,
+		    sc->sc_cmap_blue[i + start] << 24);
 	}
+	bus_space_write_4(sc->sc_bustag, sc->sc_bt, DAC_ADDRESS, 0);
 }
 
 static void
@@ -523,10 +602,11 @@
 	struct tcx_softc *sc = device_private(dev);
 
 	if (sc->sc_blanked) {
+	
 		sc->sc_blanked = 0;
-		sc->sc_thc->thc_hcmisc &= ~THC_MISC_VSYNC_DISABLE;
-		sc->sc_thc->thc_hcmisc &= ~THC_MISC_HSYNC_DISABLE;
-		sc->sc_thc->thc_hcmisc |= THC_MISC_VIDEN;
+		//sc->sc_thc->thc_hcmisc &= ~THC_MISC_VSYNC_DISABLE;
+		//sc->sc_thc->thc_hcmisc &= ~THC_MISC_HSYNC_DISABLE;
+		//sc->sc_thc->thc_hcmisc |= THC_MISC_VIDEN;
 	}
 }
 
@@ -581,7 +661,7 @@
 		{ TCX_USER_RBLIT, 1, TCX_REG_RBLIT },
 		{ TCX_USER_TEC, 1, TCX_REG_TEC },
 		{ TCX_USER_BTREGS, 8192 /* XXX */, TCX_REG_CMAP },
-		{ TCX_USER_THC, sizeof(struct tcx_thc), TCX_REG_THC },
+		{ TCX_USER_THC, 0x1000, TCX_REG_THC },
 		{ TCX_USER_DHC, 1, TCX_REG_DHC },
 		{ TCX_USER_ALT, 1, TCX_REG_ALT },
 		{ TCX_USER_ROM, 65536, TCX_REG_ROM },
@@ -659,3 +739,341 @@
 	}
 	return (-1);
 }
+
+int
+tcx_ioctl(void *v, void *vs, u_long cmd, void *data, int flag,
+	struct lwp *l)
+{
+	struct vcons_data *vd = v;
+	struct tcx_softc *sc = vd->cookie;
+	struct wsdisplay_fbinfo *wdf;
+	struct vcons_screen *ms = vd->active;
+
+	switch (cmd) {
+		case WSDISPLAYIO_GTYPE:
+			*(u_int *)data = WSDISPLAY_TYPE_SUNTCX;
+			return 0;
+
+#if 0
+		case FBIOGVIDEO:
+		case WSDISPLAYIO_GVIDEO:
+			*(int *)data = tcx_get_video(sc);
+			return 0;
+
+		case WSDISPLAYIO_SVIDEO:
+		case FBIOSVIDEO:
+			tcx_set_video(sc, *(int *)data);
+			return 0;
+#endif
+		case WSDISPLAYIO_GINFO:
+			wdf = (void *)data;
+			wdf->height = ms->scr_ri.ri_height;
+			wdf->width = ms->scr_ri.ri_width;
+			wdf->depth = ms->scr_ri.ri_depth;
+			wdf->cmsize = 256;
+			return 0;
+#if 0
+		case WSDISPLAYIO_GETCMAP:
+			return tcx_getcmap(sc, (struct wsdisplay_cmap *)data);
+
+		case WSDISPLAYIO_PUTCMAP:
+			return tcx_putcmap(sc, (struct wsdisplay_cmap *)data);
+#endif
+		case WSDISPLAYIO_SMODE:
+			{
+				int new_mode = *(int*)data;
+				if (new_mode != sc->sc_mode)
+				{
+					sc->sc_mode = new_mode;
+					if (new_mode == WSDISPLAYIO_MODE_EMUL)
+					{
+#if 0
+						tcxloadcmap(sc, 0, 256);
+						tcx_clearscreen(sc);
+#endif
+						vcons_redraw_screen(ms);
+					}
+				}
+			}
+	}
+	return EPASSTHROUGH;
+}
+
+static paddr_t
+tcx_mmap(void *v, void *vs, off_t offset, int prot)
+{
+#if 0
+	struct vcons_data *vd = v;
+	struct tcx_softc *sc = vd->cookie;
+	paddr_t pa;
+
+	/* 'regular' framebuffer mmap()ing */
+	if (offset < sc->sc_fb_psize) {
+		pa = bus_space_mmap(sc->sc_bustag, sc->sc_fb_paddr + offset, 0,
+		    prot, BUS_SPACE_MAP_LINEAR);
+		return pa;
+	}
+
+	if ((offset >= sc->sc_fb_paddr) && (offset < (sc->sc_fb_paddr +
+	    sc->sc_fb_psize))) {
+		pa = bus_space_mmap(sc->sc_bustag, offset, 0, prot,
+		    BUS_SPACE_MAP_LINEAR);
+		return pa;
+	}
+
+	if ((offset >= sc->sc_ctl_paddr) && (offset < (sc->sc_ctl_paddr +
+	    sc->sc_ctl_psize))) {
+		pa = bus_space_mmap(sc->sc_bustag, offset, 0, prot,
+		    BUS_SPACE_MAP_LINEAR);
+		return pa;
+	}
+#endif
+	return -1;
+}
+
+static void
+tcx_init_screen(void *cookie, struct vcons_screen *scr,
+    int existing, long *defattr)
+{
+	struct tcx_softc *sc = cookie;
+	struct rasops_info *ri = &scr->scr_ri;
+
+	ri->ri_depth = 8;
+	ri->ri_width = sc->sc_fb.fb_type.fb_width;
+	ri->ri_height = sc->sc_fb.fb_type.fb_height;
+	ri->ri_stride = sc->sc_fb.fb_linebytes;
+	ri->ri_flg = RI_CENTER | RI_FULLCLEAR;
+
+	ri->ri_bits = sc->sc_fbaddr;
+
+	rasops_init(ri, ri->ri_height/8, ri->ri_width/8);
+	ri->ri_caps = WSSCREEN_WSCOLORS;
+	rasops_reconfig(ri, ri->ri_height / ri->ri_font->fontheight,
+		    ri->ri_width / ri->ri_font->fontwidth);
+
+	/* enable acceleration */
+	ri->ri_ops.copyrows  = tcx_copyrows;
+	ri->ri_ops.eraserows = tcx_eraserows;
+	ri->ri_ops.putchar   = tcx_putchar;
+#if 0
+	ri->ri_ops.cursor    = tcx_cursor;
+	ri->ri_ops.copycols  = tcx_copycols;
+	ri->ri_ops.erasecols = tcx_erasecols;
+#endif
+}
+
+static void
+tcx_clearscreen(struct tcx_softc *sc)
+{
+	uint64_t bg = ((uint64_t)sc->sc_bg << 32) | 0xffffffffLL;
+	int i;
+
+	for (i = 0; i < 1024 * 1024; i += 32)
+		sc->sc_rstip[i] = bg;
+}
+
+static void
+tcx_copyrows(void *cookie, int srcrow, int dstrow, int nrows)
+{
+	struct rasops_info *ri = cookie;
+	struct vcons_screen *scr = ri->ri_hw;
+	struct tcx_softc *sc = scr->scr_cookie;
+	int i, last, first, len, dest, leftover;
+
+	i = ri->ri_width * ri->ri_font->fontheight * nrows;
+	len = i & 0xffffe0;
+	leftover = i & 0x1f;
+	if (srcrow < dstrow) {
+		/* we must go bottom to top */
+		first = ri->ri_width * 
+		    (ri->ri_font->fontheight * srcrow + ri->ri_yorigin);
+		last = first + len;
+		dest = ri->ri_width *
+		    (ri->ri_font->fontheight * dstrow + ri->ri_yorigin) + len;
+		if (leftover > 0) {
+			sc->sc_rblit[dest + 32] = 
+			    (uint64_t)((leftover - 1) << 24) | 
+			    (uint64_t)(i + 32);
+		}
+		for (i = last; i >= first; i -= 32) {
+			sc->sc_rblit[dest] = 0x300000001f000000LL | (uint64_t)i;
+			dest -= 32;
+		}
+	} else {
+		/* top to bottom */
+		first = ri->ri_width * 
+		    (ri->ri_font->fontheight * srcrow + ri->ri_yorigin);
+		dest = ri->ri_width * 
+		    (ri->ri_font->fontheight * dstrow + ri->ri_yorigin);
+		last = first + len;
+		for (i = first; i <= last; i+= 32) {
+			sc->sc_rblit[dest] = 0x300000001f000000LL | (uint64_t)i;
+			dest += 32;
+		}
+		if (leftover > 0) {
+			sc->sc_rblit[dest] = 
+			    (uint64_t)((leftover - 1) << 24) | (uint64_t)i;
+		}
+	}
+}
+
+static void
+tcx_eraserows(void *cookie, int start, int nrows, long attr)
+{
+	struct rasops_info *ri = cookie;
+	struct vcons_screen *scr = ri->ri_hw;
+	struct tcx_softc *sc = scr->scr_cookie;
+	uint64_t temp;
+	int i, last, first, len, leftover;
+
+	i = ri->ri_width * ri->ri_font->fontheight * nrows;
+	len = i & 0xffffe0;
+	leftover = i & 0x1f;
+	first = ri->ri_width * 
+	    (ri->ri_font->fontheight * start + ri->ri_yorigin);
+	last = first + len;
+	temp = 0x30000000ffffffffLL | 
+	    ((uint64_t)ri->ri_devcmap[(attr >> 16) & 0xff] << 32);
+
+	for (i = first; i <= last; i+= 32)
+		sc->sc_rblit[i] = temp;
+
+	if (leftover > 0) {
+		temp &= 0xffffffffffffffffLL << (32 - leftover);
+		sc->sc_rblit[i] = temp;
+	}
+}
+/*
+ * The stipple engine is 100% retarded. All drawing operations have to start 
+ * at 32 pixel boundaries so we'll have to deal with characters being split.
+ */
+
+static void
+tcx_putchar(void *cookie, int row, int col, u_int c, long attr)
+{
+	struct rasops_info *ri = cookie;
+	struct vcons_screen *scr = ri->ri_hw;
+	struct tcx_softc *sc = scr->scr_cookie;
+	uint64_t bg, fg, temp, mask;
+	int addr, i, uc, shift;
+	uint32_t fmask;
+	uint8_t *cdata;
+	uint16_t *wdata;
+
+	addr = ri->ri_xorigin +
+	    col * ri->ri_font->fontwidth +
+	    (ri->ri_yorigin + row * ri->ri_font->fontheight) * ri->ri_width;
+
+	/* check if the character is crossing a 32 pixel boundary */
+	if ((addr & 0xffffe0) ==
+	    ((addr + ri->ri_font->fontwidth - 1) & 0xffffe0)) {
+		/* phew, not split */
+		shift = addr & 0x1f;
+		addr &= 0xffffe0;
+		fmask = 0xffffffff >> (32 - ri->ri_font->fontwidth);
+		fmask = fmask << (32 - ri->ri_font->fontwidth - shift);
+		mask = fmask;
+		bg = 0x3000000000000000LL |
+		    ((uint64_t)ri->ri_devcmap[(attr >> 16) & 0xff] &
+		      0xff) << 32;
+		bg |= mask;
+		temp = 0x3000000000000000LL |
+		    ((uint64_t)ri->ri_devcmap[(attr >> 24) & 0xff] & 0xff) << 
+		    	32;
+		uc = c - ri->ri_font->firstchar;
+		cdata = (uint8_t *)ri->ri_font->data + uc * ri->ri_fontscale;
+
+		if (ri->ri_font->fontwidth < 9) {
+			/* byte by byte */
+			for (i = 0; i < ri->ri_font->fontheight; i++) {
+				sc->sc_rstip[addr] = bg;
+				if (*cdata != 0) {
+					if (shift > 24) {
+						fg = (uint64_t)*cdata >>
+					  	  (shift - 24);
+					} else {
+						fg = (uint64_t)*cdata <<
+					  	  (24 - shift);
+					}
+					sc->sc_rstip[addr] = fg | temp;
+				}
+				cdata++;
+				addr += ri->ri_width;
+			}
+		} else if (ri->ri_font->fontwidth < 17) {
+			/* short by short */
+			wdata = (uint16_t *)cdata;
+			for (i = 0; i < ri->ri_font->fontheight; i++) {
+				sc->sc_rstip[addr] = bg;
+				if (*wdata != 0) {
+					if (shift > 16) {
+						fg = temp | (uint64_t)*wdata >> 
+					  	  (shift - 16);
+					} else {
+						fg = temp | (uint64_t)*wdata << 
+					  	  (16 - shift);
+					}
+					sc->sc_rstip[addr] = fg;
+				}
+				wdata++;
+				addr += ri->ri_width;
+			}
+		}
+	} else {
+		/* and now the split case ( man this hardware is dumb ) */
+		uint64_t bgr, maskr, fgr;
+		uint32_t bork;
+
+		shift = addr & 0x1f;
+		addr &= 0xffffe0;
+		mask = 0xffffffff >> shift;
+		maskr = (uint64_t)(0xffffffffUL << 
+		    (32 - (ri->ri_font->fontwidth + shift - 32)));
+		bg = 0x3000000000000000LL |
+		    ((uint64_t)ri->ri_devcmap[(attr >> 16) & 0xff] &
+		      0xff) << 32;
+		bgr = bg | maskr;
+		bg |= mask;
+		temp = 0x3000000000000000LL |
+		    ((uint64_t)ri->ri_devcmap[(attr >> 24) & 0xff] & 0xff) << 
+		      32;
+
+		uc = c - ri->ri_font->firstchar;
+		cdata = (uint8_t *)ri->ri_font->data + uc * ri->ri_fontscale;
+
+		if (ri->ri_font->fontwidth < 9) {
+			/* byte by byte */
+			for (i = 0; i < ri->ri_font->fontheight; i++) {
+				sc->sc_rstip[addr] = bg;
+				sc->sc_rstip[addr + 32] = bgr;
+				bork = *cdata;
+				if (bork != 0) {
+					fg = (uint64_t)bork >> (shift - 24);
+					sc->sc_rstip[addr] = fg | temp;
+					fgr = (uint64_t)(bork << (52 - shift));
+					sc->sc_rstip[addr] = fgr | temp;
+				}
+				cdata++;
+				addr += ri->ri_width;
+			}
+		} else if (ri->ri_font->fontwidth < 17) {
+			/* short by short */
+			wdata = (uint16_t *)cdata;
+			for (i = 0; i < ri->ri_font->fontheight; i++) {
+				sc->sc_rstip[addr] = bg;
+				sc->sc_rstip[addr + 32] = bgr;
+				bork = *wdata;
+				if (bork != 0) {
+					fg = (uint64_t)bork >> (shift - 16);
+					sc->sc_rstip[addr] = fg | temp;
+					fgr = (uint64_t)(bork << (48 - shift));
+					sc->sc_rstip[addr + 32] = fgr | temp;
+				}
+				wdata++;
+				addr += ri->ri_width;
+			}
+		}
+		
+	}
+}
+

Index: src/sys/dev/sbus/tcxreg.h
diff -u src/sys/dev/sbus/tcxreg.h:1.4 src/sys/dev/sbus/tcxreg.h:1.5
--- src/sys/dev/sbus/tcxreg.h:1.4	Mon Apr 28 20:23:57 2008
+++ src/sys/dev/sbus/tcxreg.h	Thu Aug  6 18:26:03 2009
@@ -1,4 +1,4 @@
-/*	$NetBSD: tcxreg.h,v 1.4 2008/04/28 20:23:57 martin Exp $ */
+/*	$NetBSD: tcxreg.h,v 1.5 2009/08/06 18:26:03 macallan Exp $ */
 /*
  *  Copyright (c) 1996 The NetBSD Foundation, Inc.
  *  All rights reserved.
@@ -64,23 +64,22 @@
 /*
  * The layout of the THC.
  */
-struct tcx_thc {
-	u_int	thc_config;
-	u_int	thc_xxx1[31];
-	u_int	thc_sensebus;
-	u_int	thc_xxx2[3];
-	u_int	thc_delay;
-	u_int	thc_strapping;
-	u_int	thc_xxx3[1];
-	u_int	thc_linecount;
-	u_int	thc_xxx4[478];
-	u_int	thc_hcmisc;
-	u_int	thc_xxx5[56];
-	u_int	thc_cursoraddr;
-	u_int	thc_cursorAdata[32];
-	u_int	thc_cursorBdata[32];
 
-};
+#define THC_CONFIG	0x00000000
+#define THC_SENSEBUS	0x00000080
+#define THC_DELAY	0x00000090
+#define THC_STRAPPING	0x00000094
+#define THC_LINECOUNTER	0x0000009c
+#define THC_HSYNC_START	0x000000a0
+#define THC_HSYNC_END	0x000000a4
+#define THC_HDISP_START	0x000000a8
+#define THC_HDISP_VSYNC	0x000000ac
+#define THC_HDISP_END	0x000000b0
+#define THC_MISC	0x00000818
+#define THC_CURSOR_POS	0x000008fc
+#define THC_CURSOR_1	0x00000900 /* bitmap bit 1 */
+#define THC_CURSOR_0	0x00000980 /* bitmap bit 0 */
+
 /* bits in thc_config ??? */
 #define THC_CFG_FBID		0xf0000000	/* id mask */
 #define THC_CFG_FBID_SHIFT	28
@@ -141,3 +140,15 @@
 	u_int	tec_vde;	/* */
 };
 
+/* DAC registers */
+#define DAC_ADDRESS	0x00000000
+#define DAC_FB_LUT	0x00000004	/* palette / gamma table */
+#define DAC_CONTROL_1	0x00000008
+#define DAC_CURSOR_LUT	0x0000000c	/* cursor sprite colours */
+#define DAC_CONTROL_2	0x00000018
+
+#define DAC_C1_ID		0
+#define DAC_C1_REVISION		1
+#define DAC_C1_READ_MASK	4
+#define DAC_C1_BLINK_MASK	5
+#define DAC_C1_CONTROL_0	6

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