Skeleton driver for the Creator/Creator3D framebuffer (doesn't do much

except provide an entry point for mmap'n from userland so I can figure out
how it works).  Many thanks to Matt Potter <matt@vertrauen.org> for providing
a card.

1 files changed, 373 insertions, 0 deletions

diff --git a/sys/arch/sparc64/dev/creator.c b/sys/arch/sparc64/dev/creator.c
new file mode 100644
index 00000000000..07fff5814dd
--- /dev/null
+++ b/sys/arch/sparc64/dev/creator.c
@@ -0,0 +1,373 @@
+/*	$OpenBSD: creator.c,v 1.1 2002/05/21 04:31:03 jason Exp $	*/
+
+/*
+ * Copyright (c) 2002 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.
+ */
+
+#include <sys/types.h>
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/kernel.h>
+#include <sys/device.h>
+#include <sys/conf.h>
+#include <sys/timeout.h>
+
+#include <machine/bus.h>
+#include <machine/autoconf.h>
+#include <machine/openfirm.h>
+
+#include <dev/wscons/wsconsio.h>
+#include <dev/wscons/wsdisplayvar.h>
+#include <dev/wscons/wscons_raster.h>
+#include <dev/rasops/rasops.h>
+
+/* Number of register sets */
+#define	FFB_NREGS		24
+
+/* Register set numbers */
+#define	FFB_REG_PROM		0
+#define	FFB_REG_DAC		1
+#define	FFB_REG_FBC		2
+#define	FFB_REG_DFB8R		3
+#define	FFB_REG_DFB8G		4
+#define	FFB_REG_DFB8B		5
+#define	FFB_REG_DFB8X		6
+#define	FFB_REG_DFB24		7
+#define	FFB_REG_DFB32		8
+#define	FFB_REG_SFB8R		9
+#define	FFB_REG_SFB8G		10
+#define	FFB_REG_SFB8B		11
+#define	FFB_REG_SFB8X		12
+#define	FFB_REG_SFB32		13
+#define	FFB_REG_SFB64		14
+#define	FFB_REG_DFB422A		15
+#define	FFB_REG_DFB422AD	16
+#define	FFB_REG_DFB24B		17
+#define	FFB_REG_DFB422B		18
+#define	FFB_REG_DFB422BD	19
+#define	FFB_REG_SFB8Z		20
+#define	FFB_REG_SFB16Z		21
+#define	FFB_REG_SFB422		22
+#define	FFB_REG_SFB422D		23
+
+struct wsdisplay_emulops creator_emulops = {
+	rcons_cursor,
+	rcons_mapchar,
+	rcons_putchar,
+	rcons_copycols,
+	rcons_erasecols,
+	rcons_copyrows,
+	rcons_eraserows,
+	rcons_alloc_attr
+};
+
+struct wsscreen_descr creator_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 *creator_scrlist[] = {
+	&creator_stdscreen,
+	/* XXX other formaces? */
+};
+
+struct wsscreen_list creator_screenlist = {
+	sizeof(creator_scrlist) / sizeof(struct wsscreen_descr *), creator_scrlist
+};
+
+int creator_ioctl(void *, u_long, caddr_t, int, struct proc *);
+int creator_alloc_screen(void *, const struct wsscreen_descr *, void **,
+    int *, int *, long *);
+void creator_free_screen(void *, void *);
+int creator_show_screen(void *, void *, int, void (*cb)(void *, int, int),
+    void *);
+paddr_t creator_mmap(void *, off_t, int);
+static int a2int(char *, int);
+
+struct wsdisplay_accessops creator_accessops = {
+	creator_ioctl,
+	creator_mmap,
+	creator_alloc_screen,
+	creator_free_screen,
+	creator_show_screen,
+	NULL,	/* load_font */
+	NULL,	/* scrollback */
+	NULL,	/* getchar */
+	NULL,	/* burner */
+};
+
+struct creator_softc {
+	struct device sc_dv;
+	bus_space_tag_t sc_bt;
+	bus_space_handle_t sc_regs[FFB_NREGS];
+	bus_addr_t sc_addrs[FFB_NREGS];
+	bus_size_t sc_sizes[FFB_NREGS];
+	int sc_height, sc_width, sc_linebytes, sc_depth;
+	int sc_nscreens, sc_nregs;
+	struct rcons sc_rcons;
+	struct rasops_info sc_rasops;
+};
+
+int	creator_match(struct device *, void *, void *);
+void	creator_attach(struct device *, struct device *, void *);
+
+struct cfattach creator_ca = {
+	sizeof(struct creator_softc), creator_match, creator_attach
+};
+
+struct cfdriver creator_cd = {
+	NULL, "creator", DV_DULL
+};
+
+int
+creator_match(parent, match, aux)
+	struct device *parent;
+	void *match, *aux;
+{
+	struct mainbus_attach_args *ma = aux;
+
+	if (strcmp(ma->ma_name, "SUNW,ffb") == 0)
+		return (1);
+	return (0);
+}
+
+void
+creator_attach(parent, self, aux)
+	struct device *parent, *self;
+	void *aux;
+{
+	struct creator_softc *sc = (struct creator_softc *)self;
+	struct mainbus_attach_args *ma = aux;
+	struct wsemuldisplaydev_attach_args waa;
+	long defattr;
+	extern int fbnode;
+	int i, btype, console;
+
+	sc->sc_bt = ma->ma_bustag;
+	if (ma->ma_nreg < FFB_NREGS) {
+		printf(": expected %d regs, got %d\n", FFB_NREGS, ma->ma_nreg);
+		goto fail;
+	}
+
+	printf(":");
+
+	btype = getpropint(ma->ma_node, "board_type", 0);
+	if ((btype & 7) == 3)
+		printf(" Creator3D");
+	else
+		printf(" Creator");
+
+	printf("\n");
+
+	for (i = 0; i < ma->ma_nreg; i++) {
+		if (bus_space_map2(sc->sc_bt, 0,
+		    ma->ma_reg[i].ur_paddr, ma->ma_reg[i].ur_len,
+		    0, NULL, &sc->sc_regs[i])) {
+			printf(": failed to map register set %d\n", i);
+			goto fail;
+		}
+		sc->sc_addrs[i] = ma->ma_reg[i].ur_paddr;
+		sc->sc_sizes[i] = ma->ma_reg[i].ur_len;
+		printf(" reg %d: addr %llx len %llx\n", i,
+		    (unsigned long long)sc->sc_addrs[i],
+		    (unsigned long long)sc->sc_sizes[i]);
+		sc->sc_nregs = i + 1;
+	}
+
+	console = (fbnode == ma->ma_node);
+
+	sc->sc_depth = 32;
+	sc->sc_linebytes = 8192;
+	sc->sc_height = getpropint(ma->ma_node, "height", 0);
+	sc->sc_width = getpropint(ma->ma_node, "width", 0);
+
+	sc->sc_rasops.ri_depth = 8;
+	sc->sc_rasops.ri_stride = 1024;
+	sc->sc_rasops.ri_flg = RI_CENTER;
+	sc->sc_rasops.ri_bits = (void *)bus_space_vaddr(sc->sc_bt,
+	    sc->sc_regs[FFB_REG_DFB8R]);
+	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));
+
+	creator_stdscreen.nrows = sc->sc_rasops.ri_rows;
+	creator_stdscreen.ncols = sc->sc_rasops.ri_cols;
+	creator_stdscreen.textops = &sc->sc_rasops.ri_ops;
+	sc->sc_rasops.ri_ops.alloc_attr(&sc->sc_rasops, 0, 0, 0, &defattr);
+
+#if 0
+/*XXX*/	waa.console = console;
+#else
+/*XXX*/	waa.console = 0;
+#endif
+	waa.scrdata = &creator_screenlist;
+	waa.accessops = &creator_accessops;
+	waa.accesscookie = sc;
+	config_found(self, &waa, wsemuldisplaydevprint);
+
+	return;
+
+fail:
+	for (i = 0; i < ma->ma_nreg; i++)
+		if (sc->sc_regs[i] != 0)
+			bus_space_unmap(sc->sc_bt, sc->sc_regs[i],
+			    ma->ma_reg[i].ur_len);
+}
+
+int
+creator_ioctl(v, cmd, data, flags, p)
+	void *v;
+	u_long cmd;
+	caddr_t data;
+	int flags;
+	struct proc *p;
+{
+	struct creator_softc *sc = v;
+	struct wsdisplay_fbinfo *wdf;
+
+	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:
+		break;/* XXX */
+
+	case WSDISPLAYIO_PUTCMAP:
+		break;/* XXX */
+
+	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
+creator_alloc_screen(v, type, cookiep, curxp, curyp, attrp)
+	void *v;
+	const struct wsscreen_descr *type;
+	void **cookiep;
+	int *curxp, *curyp;
+	long *attrp;
+{
+	struct creator_softc *sc = v;
+
+	if (sc->sc_nscreens > 0)
+		return (ENOMEM);
+
+	*cookiep = &sc->sc_rcons;
+	*curyp = *sc->sc_rcons.rc_crowp;
+	*curxp = *sc->sc_rcons.rc_ccolp;
+	rcons_alloc_attr(&sc->sc_rcons, 0, 0, 0, attrp);
+	sc->sc_nscreens++;
+	return (0);
+}
+
+void
+creator_free_screen(v, cookie)
+	void *v;
+	void *cookie;
+{
+	struct creator_softc *sc = v;
+
+	sc->sc_nscreens--;
+}
+
+int
+creator_show_screen(v, cookie, waitok, cb, cbarg)
+	void *v;
+	void *cookie;
+	int waitok;
+	void (*cb)(void *, int, int);
+	void *cbarg;
+{
+	return (0);
+}
+
+paddr_t
+creator_mmap(vsc, off, prot)
+	void *vsc;
+	off_t off;
+	int prot;
+{
+	struct creator_softc *sc = vsc;
+	int i;
+
+	for (i = 0; i < sc->sc_nregs; i++) {
+		/* Before this set? */
+		if (off < sc->sc_addrs[i])
+			continue;
+		/* After this set? */
+		if (off >= (sc->sc_addrs[i] + sc->sc_sizes[i]))
+			continue;
+
+		return (bus_space_mmap(sc->sc_bt, sc->sc_addrs[i],
+		    off - sc->sc_addrs[i], 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);
+}