- Merge sys/sparc64/creator/creator_upa.c into sys/dev/fb/creator.c.

  The separate bus front-end was inherited from the OpenBSD creator(4),
  which at that time had a mainbus(4) (for USI/II machines, which use
  an UPA interconnection bus as the nexus) and an upa(4) (for USIII
  machines, which use a subordinate/slave UPA bus hanging off from the
  Fireplane/Safari interconnection bus) front-end. With FreeBSD and
  newbus there is/will be no need to have two separate bus front-ends
  for these busses, so we can easily coallapse the shared front-end
  and the back-end into a single source file (note that the FreeBSD
  creator_upa.c was misnomer anyway; based on what it actually attached
  to that should have been creator_nexus.c), actually OpenBSD meanwhile
  also has moved to a shared front-end and a single source file. Due
  to the low-level console support creator.c also wasn't free from bus
  related things before.
  While at it, also split sys/sparc64/creator/creator.h into a
  sys/dev/fb/creatorreg.h that only contains register macros and move
  the structures to the top of sys/dev/fb/creator.c as suggested by
  style(9) so creator(4) is no longer scattered over two directories.
- Use OF_decode_addr()/sparc64_fake_bustag() to obtain the bus tags and
  handles for the low-level console support instead of hardcoding
  support for AFB/FFB hanging off from nexus(4) only. This is part 2/4
  of allowing creator(4) to work in USIII machines (which have a UPA
  bus hanging off from the Fireplane/Safari bus reflected by the nexus),
  which already makes it work as the low-level console there.
- Allocate resources in the bus attach routine regardless of whether
  creator(4) is used as for the low-level console and thus the required
  bus tags and handles have been already obtained or not so the resources
  are marked as taken in the respective RMAN.
- For both obtaining the bus tags and handles for the low-level console
  support as well as allocating the corresponding resources in the
  regular bus attach routine don't bother to get all for the maximum of
  24 register banks but only (for) the two tag/handle pairs required for
  providing the video interface for syscons(4) support. If we can't
  allocate the rest of them just limit the memory range accessible via
  creator_fb_mmap() accordingly.
- Sanity check the memory range spanned by the first and last resources
  and the resources in between as far as possible, as the XFree86/Xorg
  sunffb(4) expects to be able to access the whole region, even though
  the backing resources are actually non-continuous. Limit and check
  the memory range accessible via creator_fb_mmap() accordingly.
- Reduce the size of buffers for OFW properties to what they actually
  need to hold.
- Rename some tables to creator_<foo> for consistency.
- Also for the sizes in the creator_fb_mmap() mapping table entries use
  macros for consistency, add macros for the remaining register banks
  for completeness.

1 files changed, 405 insertions, 41 deletions

diff --git a/sys/dev/fb/creator.c b/sys/dev/fb/creator.c
index bfcf2bc..f9f293c 100644
--- a/sys/dev/fb/creator.c
+++ b/sys/dev/fb/creator.c
@@ -30,22 +30,170 @@ __FBSDID("$FreeBSD$");
 #include <sys/param.h>
 #include <sys/systm.h>
 #include <sys/bus.h>
+#include <sys/conf.h>
 #include <sys/consio.h>
 #include <sys/fbio.h>
 #include <sys/kernel.h>
 #include <sys/module.h>
+#include <sys/resource.h>
+
+#include <dev/ofw/openfirm.h>
 
 #include <machine/bus.h>
+#include <machine/bus_private.h>
+#include <machine/nexusvar.h>
+#include <machine/ofw_machdep.h>
 #include <machine/ofw_upa.h>
+#include <machine/resource.h>
 #include <machine/sc_machdep.h>
 
+#include <sys/rman.h>
+
 #include <dev/fb/fbreg.h>
+#include <dev/fb/creatorreg.h>
 #include <dev/fb/gallant12x22.h>
 #include <dev/syscons/syscons.h>
 
-#include <dev/ofw/openfirm.h>
+#define	CREATOR_DRIVER_NAME	"creator"
+
+struct creator_softc {
+	video_adapter_t		sc_va;			/* XXX must be first */
+
+	phandle_t		sc_node;
+
+	struct cdev		*sc_si;
+
+	int			sc_rid[FFB_NREG];
+	struct resource		*sc_reg[FFB_NREG];
+	bus_space_tag_t		sc_bt[FFB_NREG];
+	bus_space_handle_t	sc_bh[FFB_NREG];
+
+	int			sc_height;
+	int			sc_width;
+
+	int			sc_xmargin;
+	int			sc_ymargin;
+
+	u_char			*sc_font;
+
+	int			sc_bg_cache;
+	int			sc_fg_cache;
+	int			sc_fifo_cache;
+	int			sc_fontinc_cache;
+	int			sc_fontw_cache;
+	int			sc_pmask_cache;
+
+	int			sc_flags;
+#define	CREATOR_AFB		(1 << 0)
+#define	CREATOR_CONSOLE		(1 << 1)
+#define	CREATOR_CUREN		(1 << 2)
+#define	CREATOR_CURINV		(1 << 3)
+#define	CREATOR_PAC1		(1 << 4)
+};
+
+#define	FFB_READ(sc, reg, off)						\
+	bus_space_read_4((sc)->sc_bt[(reg)], (sc)->sc_bh[(reg)], (off))
+#define	FFB_WRITE(sc, reg, off, val)					\
+	bus_space_write_4((sc)->sc_bt[(reg)], (sc)->sc_bh[(reg)], (off), (val))
+
+#define	C(r, g, b)	((b << 16) | (g << 8) | (r))
+static const uint32_t creator_cmap[] = {
+	C(0x00, 0x00, 0x00),		/* black */
+	C(0x00, 0x00, 0xff),		/* blue */
+	C(0x00, 0xff, 0x00),		/* green */
+	C(0x00, 0xc0, 0xc0),		/* cyan */
+	C(0xff, 0x00, 0x00),		/* red */
+	C(0xc0, 0x00, 0xc0),		/* magenta */
+	C(0xc0, 0xc0, 0x00),		/* brown */
+	C(0xc0, 0xc0, 0xc0),		/* light grey */
+	C(0x80, 0x80, 0x80),		/* dark grey */
+	C(0x80, 0x80, 0xff),		/* light blue */
+	C(0x80, 0xff, 0x80),		/* light green */
+	C(0x80, 0xff, 0xff),		/* light cyan */
+	C(0xff, 0x80, 0x80),		/* light red */
+	C(0xff, 0x80, 0xff),		/* light magenta */
+	C(0xff, 0xff, 0x80),		/* yellow */
+	C(0xff, 0xff, 0xff),		/* white */
+};
+#undef C
+
+static const struct {
+	vm_offset_t virt;
+	vm_paddr_t phys;
+	vm_size_t size;
+} creator_fb_map[] = {
+	{ FFB_VIRT_SFB8R,	FFB_PHYS_SFB8R,		FFB_SIZE_SFB8R },
+	{ FFB_VIRT_SFB8G,	FFB_PHYS_SFB8G,		FFB_SIZE_SFB8G },
+	{ FFB_VIRT_SFB8B,	FFB_PHYS_SFB8B,		FFB_SIZE_SFB8B },
+	{ FFB_VIRT_SFB8X,	FFB_PHYS_SFB8X,		FFB_SIZE_SFB8X },
+	{ FFB_VIRT_SFB32,	FFB_PHYS_SFB32,		FFB_SIZE_SFB32 },
+	{ FFB_VIRT_SFB64,	FFB_PHYS_SFB64,		FFB_SIZE_SFB64 },
+	{ FFB_VIRT_FBC,		FFB_PHYS_FBC,		FFB_SIZE_FBC },
+	{ FFB_VIRT_FBC_BM,	FFB_PHYS_FBC_BM,	FFB_SIZE_FBC_BM },
+	{ FFB_VIRT_DFB8R,	FFB_PHYS_DFB8R,		FFB_SIZE_DFB8R },
+	{ FFB_VIRT_DFB8G,	FFB_PHYS_DFB8G,		FFB_SIZE_DFB8G },
+	{ FFB_VIRT_DFB8B,	FFB_PHYS_DFB8B,		FFB_SIZE_DFB8B },
+	{ FFB_VIRT_DFB8X,	FFB_PHYS_DFB8X,		FFB_SIZE_DFB8X },
+	{ FFB_VIRT_DFB24,	FFB_PHYS_DFB24,		FFB_SIZE_DFB24 },
+	{ FFB_VIRT_DFB32,	FFB_PHYS_DFB32,		FFB_SIZE_DFB32 },
+	{ FFB_VIRT_DFB422A,	FFB_PHYS_DFB422A,	FFB_SIZE_DFB422A },
+	{ FFB_VIRT_DFB422AD,	FFB_PHYS_DFB422AD,	FFB_SIZE_DFB422AD },
+	{ FFB_VIRT_DFB24B,	FFB_PHYS_DFB24B,	FFB_SIZE_DFB24B },
+	{ FFB_VIRT_DFB422B,	FFB_PHYS_DFB422B,	FFB_SIZE_DFB422B },
+	{ FFB_VIRT_DFB422BD,	FFB_PHYS_DFB422BD,	FFB_SIZE_DFB422BD },
+	{ FFB_VIRT_SFB16Z,	FFB_PHYS_SFB16Z,	FFB_SIZE_SFB16Z },
+	{ FFB_VIRT_SFB8Z,	FFB_PHYS_SFB8Z,		FFB_SIZE_SFB8Z },
+	{ FFB_VIRT_SFB422,	FFB_PHYS_SFB422,	FFB_SIZE_SFB422 },
+	{ FFB_VIRT_SFB422D,	FFB_PHYS_SFB422D,	FFB_SIZE_SFB422D },
+	{ FFB_VIRT_FBC_KREG,	FFB_PHYS_FBC_KREG,	FFB_SIZE_FBC_KREG },
+	{ FFB_VIRT_DAC,		FFB_PHYS_DAC,		FFB_SIZE_DAC },
+	{ FFB_VIRT_PROM,	FFB_PHYS_PROM,		FFB_SIZE_PROM },
+	{ FFB_VIRT_EXP,		FFB_PHYS_EXP,		FFB_SIZE_EXP },
+};
+
+#define	CREATOR_FB_MAP_SIZE						\
+	(sizeof(creator_fb_map) / sizeof(creator_fb_map[0]))
+
+static struct creator_softc creator_softc;
+static struct bus_space_tag creator_bst_store[FFB_FBC];
+
+static device_probe_t creator_bus_probe;
+static device_attach_t creator_bus_attach;
 
-#include <sparc64/creator/creator.h>
+static device_method_t creator_bus_methods[] = {
+	DEVMETHOD(device_probe,		creator_bus_probe),
+	DEVMETHOD(device_attach,	creator_bus_attach),
+
+	{ 0, 0 }
+};
+
+static devclass_t creator_devclass;
+
+DEFINE_CLASS_0(creator, creator_bus_driver, creator_bus_methods,
+    sizeof(struct creator_softc));
+DRIVER_MODULE(creator, nexus, creator_bus_driver, creator_devclass, 0, 0);
+#if 0
+DRIVER_MODULE(creator, upa, creator_bus_driver, creator_devclass, 0, 0);
+#endif
+
+static d_open_t creator_fb_open;
+static d_close_t creator_fb_close;
+static d_ioctl_t creator_fb_ioctl;
+static d_mmap_t creator_fb_mmap;
+
+static struct cdevsw creator_fb_devsw = {
+	.d_version =	D_VERSION,
+	.d_flags =	D_NEEDGIANT,
+	.d_open =	creator_fb_open,
+	.d_close =	creator_fb_close,
+	.d_ioctl =	creator_fb_ioctl,
+	.d_mmap =	creator_fb_mmap,
+	.d_name =	"fb",
+};
+
+static void creator_cursor_enable(struct creator_softc *sc, int onoff);
+static void creator_cursor_install(struct creator_softc *sc);
+static void creator_shutdown(void *xsc);
 
 static int creator_configure(int flags);
 
@@ -81,9 +229,6 @@ static vi_putc_t creator_putc;
 static vi_puts_t creator_puts;
 static vi_putm_t creator_putm;
 
-static void creator_cursor_enable(struct creator_softc *sc, int onoff);
-static void creator_cursor_install(struct creator_softc *sc);
-
 static video_switch_t creatorvidsw = {
 	.probe			= creator_probe,
 	.init			= creator_init,
@@ -127,28 +272,6 @@ RENDERER(creator, 0, txtrndrsw, gfb_set);
 
 RENDERER_MODULE(creator, gfb_set);
 
-extern struct bus_space_tag nexus_bustag;
-
-#define	C(r, g, b)	((b << 16) | (g << 8) | (r))
-static const int cmap[] = {
-	C(0x00, 0x00, 0x00),		/* black */
-	C(0x00, 0x00, 0xff),		/* blue */
-	C(0x00, 0xff, 0x00),		/* green */
-	C(0x00, 0xc0, 0xc0),		/* cyan */
-	C(0xff, 0x00, 0x00),		/* red */
-	C(0xc0, 0x00, 0xc0),		/* magenta */
-	C(0xc0, 0xc0, 0x00),		/* brown */
-	C(0xc0, 0xc0, 0xc0),		/* light grey */
-	C(0x80, 0x80, 0x80),		/* dark grey */
-	C(0x80, 0x80, 0xff),		/* light blue */
-	C(0x80, 0xff, 0x80),		/* light green */
-	C(0x80, 0xff, 0xff),		/* light cyan */
-	C(0xff, 0x80, 0x80),		/* light red */
-	C(0xff, 0x80, 0xff),		/* light magenta */
-	C(0xff, 0xff, 0x80),		/* yellow */
-	C(0xff, 0xff, 0xff),		/* white */
-};
-
 static const u_char creator_mouse_pointer[64][8] __aligned(8) = {
 	{ 0x00, 0x00, },	/* ............ */
 	{ 0x80, 0x00, },	/* *........... */
@@ -174,8 +297,6 @@ static const u_char creator_mouse_pointer[64][8] __aligned(8) = {
 	{ 0x00, 0x00, },	/* ............ */
 };
 
-static struct creator_softc creator_softc;
-
 static inline void creator_ras_fifo_wait(struct creator_softc *sc, int n);
 static inline void creator_ras_setfontinc(struct creator_softc *sc, int fontinc);
 static inline void creator_ras_setfontw(struct creator_softc *sc, int fontw);
@@ -272,16 +393,20 @@ creator_ras_setpmask(struct creator_softc *sc, int pmask)
 	creator_ras_wait(sc);
 }
 
+/*
+ * video driver interface
+ */
 static int
 creator_configure(int flags)
 {
-	struct upa_regs reg[FFB_NREG];
 	struct creator_softc *sc;
 	phandle_t chosen;
 	phandle_t output;
 	ihandle_t stdout;
-	char buf[32];
+	bus_addr_t addr;
+	char buf[sizeof("SUNW,ffb")];
 	int i;
+	int space;
 
 	/*
 	 * For the high-level console probing return the number of
@@ -315,11 +440,11 @@ creator_configure(int flags)
 	} else
 		return (0);
 
-	if (OF_getprop(output, "reg", reg, sizeof(reg)) == -1)
-		return (0);
-	for (i = 0; i < FFB_NREG; i++) {
-		sc->sc_bt[i] = &nexus_bustag;
-		sc->sc_bh[i] = UPA_REG_PHYS(reg + i);
+	for (i = FFB_DAC; i <= FFB_FBC; i++) {
+		if (OF_decode_addr(output, i, &space, &addr) != 0)
+			return (0);
+		sc->sc_bt[i] = &creator_bst_store[i - FFB_DAC];
+		sc->sc_bh[i] = sparc64_fake_bustag(space, addr, sc->sc_bt[i]);
 	}
 
 	if (creator_init(0, &sc->sc_va, 0) < 0)
@@ -343,7 +468,7 @@ creator_init(int unit, video_adapter_t *adp, int flags)
 	struct creator_softc *sc;
 	phandle_t options;
 	video_info_t *vi;
-	char buf[32];
+	char buf[sizeof("screen-#columns")];
 
 	sc = (struct creator_softc *)adp;
 	vi = &adp->va_info;
@@ -628,7 +753,7 @@ creator_fill_rect(video_adapter_t *adp, int val, int x, int y, int cx, int cy)
 	creator_ras_fifo_wait(sc, 2);
 	FFB_WRITE(sc, FFB_FBC, FFB_FBC_ROP, FBC_ROP_NEW);
 	FFB_WRITE(sc, FFB_FBC, FFB_FBC_DRAWOP, FBC_DRAWOP_RECTANGLE);
-	creator_ras_setfg(sc, cmap[val & 0xf]);
+	creator_ras_setfg(sc, creator_cmap[val & 0xf]);
 	/*
 	 * Note that at least the Elite3D cards are sensitive to the order
 	 * of operations here.
@@ -702,8 +827,8 @@ creator_putc(video_adapter_t *adp, vm_offset_t off, u_int8_t c, u_int8_t a)
 	row = (off / adp->va_info.vi_width) * adp->va_info.vi_cheight;
 	col = (off % adp->va_info.vi_width) * adp->va_info.vi_cwidth;
 	p = (uint16_t *)sc->sc_font + (c * adp->va_info.vi_cheight);
-	creator_ras_setfg(sc, cmap[a & 0xf]);
-	creator_ras_setbg(sc, cmap[(a >> 4) & 0xf]);
+	creator_ras_setfg(sc, creator_cmap[a & 0xf]);
+	creator_ras_setbg(sc, creator_cmap[(a >> 4) & 0xf]);
 	creator_ras_fifo_wait(sc, 1 + adp->va_info.vi_cheight);
 	FFB_WRITE(sc, FFB_FBC, FFB_FBC_FONTXY,
 	    ((row + sc->sc_ymargin) << 16) | (col + sc->sc_xmargin));
@@ -745,6 +870,228 @@ creator_putm(video_adapter_t *adp, int x, int y, u_int8_t *pixel_image,
 	return (0);
 }
 
+/*
+ * bus interface
+ */
+static int
+creator_bus_probe(device_t dev)
+{
+	const char *name;
+	phandle_t node;
+	int type;
+
+	name = nexus_get_name(dev);
+	node = nexus_get_node(dev);
+	if (strcmp(name, "SUNW,ffb") == 0) {
+		if (OF_getprop(node, "board_type", &type, sizeof(type)) == -1)
+			return (ENXIO);
+		switch (type & 7) {
+		case 0x0:
+			device_set_desc(dev, "Creator");
+			break;
+		case 0x3:
+			device_set_desc(dev, "Creator3D");
+			break;
+		default:
+			return (ENXIO);
+		}
+	} else if (strcmp(name, "SUNW,afb") == 0)
+		device_set_desc(dev, "Elite3D");
+	else
+		return (ENXIO);
+	return (BUS_PROBE_DEFAULT);
+}
+
+static int
+creator_bus_attach(device_t dev)
+{
+	struct creator_softc *sc;
+	struct upa_regs *reg;
+	video_adapter_t *adp;
+	video_switch_t *sw;
+	phandle_t node;
+	bus_addr_t phys;
+	bus_size_t size;
+	int error;
+	int nreg;
+	int unit;
+	int i;
+
+	node = nexus_get_node(dev);
+	if ((sc = (struct creator_softc *)vid_get_adapter(vid_find_adapter(
+	    CREATOR_DRIVER_NAME, 0))) != NULL && sc->sc_node == node) {
+	    	device_printf(dev, "console\n");
+	    	device_set_softc(dev, sc);
+	} else {
+		sc = device_get_softc(dev);
+		sc->sc_node = node;
+	}
+	adp = &sc->sc_va;
+
+	/*
+	 * Allocate resources regardless of whether we are the console
+	 * and already obtained the bus tags and handles for the FFB_DAC
+	 * and FFB_FBC register banks in creator_configure() or not so
+	 * the resources are marked as taken in the respective RMAN.
+	 * The supported cards use either 15 (Creator, Elite3D?) or 24
+	 * (Creator3D?) register banks. We make sure that we can also
+	 * allocate the resources for at least the FFB_DAC and FFB_FBC
+	 * banks here. We try but don't actually care whether we can
+	 * allocate more than these two resources and just limit the
+	 * range accessible via creator_fb_mmap() accordingly.
+	 */
+	reg = nexus_get_reg(dev);
+	nreg = nexus_get_nreg(dev);
+	if (nreg <= FFB_FBC) {
+		device_printf(dev, "not enough resources\n");
+		error = ENXIO;
+		goto fail;
+	}
+	for (i = 0; i < nreg; i++) {
+		phys = UPA_REG_PHYS(reg + i);
+		size = UPA_REG_SIZE(reg + i);
+		sc->sc_rid[i] = i;
+		sc->sc_reg[i] = bus_alloc_resource(dev, SYS_RES_MEMORY,
+		    &sc->sc_rid[i], phys, phys + size - 1, size,
+		    RF_ACTIVE);
+		if (sc->sc_reg[i] == NULL) {
+			if (i <= FFB_FBC) {
+				device_printf(dev,
+				    "cannot allocate resources\n");
+				error = ENXIO;
+				goto fail;
+			}
+			break;
+		}
+		sc->sc_bt[i] = rman_get_bustag(sc->sc_reg[i]);
+		sc->sc_bh[i] = rman_get_bushandle(sc->sc_reg[i]);
+	}
+	/*
+	 * The XFree86/Xorg sunffb(4) expects to be able to access the
+	 * memory spanned by the first and the last resource as one chunk
+	 * via creator_fb_mmap(), using offsets from the first resource,
+	 * even though the backing resources are actually non-continuous.
+	 * So make sure that the memory we provide is at least backed by
+	 * increasing resources.
+	 */
+	adp->va_mem_base = rman_get_start(sc->sc_reg[0]);
+	for (i = 1; i < FFB_NREG && sc->sc_reg[i] != NULL &&
+	    rman_get_start(sc->sc_reg[i]) > rman_get_start(sc->sc_reg[i - 1]);
+	    i++)
+		;
+    	adp->va_mem_size = rman_get_end(sc->sc_reg[i - 1]) -
+	    adp->va_mem_base + 1;
+
+	if (!(sc->sc_flags & CREATOR_CONSOLE)) {
+		if ((sw = vid_get_switch(CREATOR_DRIVER_NAME)) == NULL) {
+			device_printf(dev, "cannot get video switch\n");
+			error = ENODEV;
+			goto fail;
+		}
+		/*
+		 * During device configuration we don't necessarily probe
+		 * the adapter which is the console first so we can't use
+		 * the device unit number for the video adapter unit. The
+		 * worst case would be that we use the video adapter unit
+		 * 0 twice. As it doesn't really matter which unit number
+		 * the corresponding video adapter has just use the next
+		 * unused one.
+		 */
+		for (i = 0; i < devclass_get_maxunit(creator_devclass); i++)
+			if (vid_find_adapter(CREATOR_DRIVER_NAME, i) < 0)
+				break;
+		if (strcmp(nexus_get_name(dev), "SUNW,afb") == 0)
+			sc->sc_flags |= CREATOR_AFB;
+		if ((error = sw->init(i, adp, 0)) != 0) {
+			device_printf(dev, "cannot initialize adapter\n");
+		    	goto fail;
+		}
+	}
+
+	if (bootverbose) {
+		if (sc->sc_flags & CREATOR_PAC1)
+			device_printf(dev,
+			    "BT9068/PAC1 RAMDAC (%s cursor control)\n",
+			    sc->sc_flags & CREATOR_CURINV ? "inverted" :
+			    "normal");
+		else
+			device_printf(dev, "BT498/PAC2 RAMDAC\n");
+	}
+	device_printf(dev, "resolution %dx%d\n", sc->sc_width, sc->sc_height);
+
+	unit = device_get_unit(dev);
+	sc->sc_si = make_dev(&creator_fb_devsw, unit, UID_ROOT, GID_WHEEL,
+	    0600, "fb%d", unit);
+	sc->sc_si->si_drv1 = sc;
+
+	EVENTHANDLER_REGISTER(shutdown_final, creator_shutdown, sc,
+	    SHUTDOWN_PRI_DEFAULT);
+
+	return (0);
+
+ fail:
+	for (i = 0; i < FFB_NREG && sc->sc_reg[i] != NULL; i++)
+		bus_release_resource(dev, SYS_RES_MEMORY, sc->sc_rid[i],
+		    sc->sc_reg[i]);
+ 	return (error);
+}
+
+/*
+ * /dev/fb interface
+ */
+static int
+creator_fb_open(struct cdev *dev, int flags, int mode, struct thread *td)
+{
+
+	return (0);
+}
+
+static int
+creator_fb_close(struct cdev *dev, int flags, int mode, struct thread *td)
+{
+
+	return (0);
+}
+
+static int
+creator_fb_ioctl(struct cdev *dev, u_long cmd, caddr_t data, int flags,
+    struct thread *td)
+{
+	struct creator_softc *sc;
+
+	sc = dev->si_drv1;
+	return (creator_ioctl(&sc->sc_va, cmd, data));
+}
+
+static int
+creator_fb_mmap(struct cdev *dev, vm_offset_t offset, vm_paddr_t *paddr,
+    int prot)
+{
+	struct creator_softc *sc;
+	int i;
+
+	/*
+	 * NB: This is a special implementation based on the /dev/fb
+	 * requirements of the XFree86/Xorg sunffb(4).
+	 */
+	sc = dev->si_drv1;
+	for (i = 0; i < CREATOR_FB_MAP_SIZE; i++) {
+		if (offset >= creator_fb_map[i].virt &&
+		    offset < creator_fb_map[i].virt + creator_fb_map[i].size) {
+		    	offset += creator_fb_map[i].phys -
+			    creator_fb_map[i].virt;
+			if (offset >= sc->sc_va.va_mem_size)
+				return (EINVAL);
+			*paddr = sc->sc_bh[0] + offset;
+			return (0);
+		}
+	}
+	return (EINVAL);
+}
+
+/*
+ * internal functions
+ */
 static void
 creator_cursor_enable(struct creator_softc *sc, int onoff)
 {
@@ -773,8 +1120,25 @@ creator_cursor_install(struct creator_softc *sc)
 		for (j = 0; j < 64; j++) {
 			FFB_WRITE(sc, FFB_DAC, FFB_DAC_VALUE2,
 			    *(const uint32_t *)(&creator_mouse_pointer[j][0]));
-			FFB_WRITE(sc, FFB_DAC, FFB_DAC_VALUE2, 
+			FFB_WRITE(sc, FFB_DAC, FFB_DAC_VALUE2,
 			    *(const uint32_t *)(&creator_mouse_pointer[j][4]));
 		}
 	}
 }
+
+static void
+creator_shutdown(void *xsc)
+{
+	struct creator_softc *sc = xsc;
+
+	creator_cursor_enable(sc, 0);
+	/*
+	 * In case this is the console set the cursor of the stdout
+	 * instance to the start of the last line so OFW output ends
+	 * up beneath what FreeBSD left on the screen.
+	 */
+	if (sc->sc_flags & CREATOR_CONSOLE) {
+		OF_interpret("stdout @ is my-self 0 to column#", 0);
+		OF_interpret("stdout @ is my-self #lines 1 - to line#", 0);
+	}
+}