Module Name: src
Committed By: macallan
Date: Tue Dec 16 21:01:34 UTC 2014
Modified Files:
src/sys/dev/sbus: files.sbus
Added Files:
src/sys/dev/sbus: mgx.c mgxreg.h
Log Message:
first draft of a driver for SMSI,mgx
More or less an Alliance Semiconductors ProMotion AT24 with some PCI-SBus
glue and 4MB framebuffer. No acceleration yet, just enough wsdisplay/vcons
setup and DAC programming to be functional.
To generate a diff of this commit:
cvs rdiff -u -r1.39 -r1.40 src/sys/dev/sbus/files.sbus
cvs rdiff -u -r0 -r1.1 src/sys/dev/sbus/mgx.c src/sys/dev/sbus/mgxreg.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:1.39 src/sys/dev/sbus/files.sbus:1.40
--- src/sys/dev/sbus/files.sbus:1.39 Sat Oct 20 13:52:11 2012
+++ src/sys/dev/sbus/files.sbus Tue Dec 16 21:01:34 2014
@@ -1,4 +1,4 @@
-# $NetBSD: files.sbus,v 1.39 2012/10/20 13:52:11 macallan Exp $
+# $NetBSD: files.sbus,v 1.40 2014/12/16 21:01:34 macallan Exp $
#
# Config file and device description for machine-independent SBUS code.
# Included by ports that need it.
@@ -154,3 +154,9 @@ defflag opt_cgtwelve.h CG12_DEBUG CG12_C
device cgtwelve: fb, rasops1, rasops8, wsemuldisplaydev, vcons
attach cgtwelve at sbus
file dev/sbus/cgtwelve.c cgtwelve
+
+# SSB MGX
+defflag opt_mgx.h MGX_DEBUG
+device mgx: fb, rasops8, wsemuldisplaydev, vcons
+attach mgx at sbus
+file dev/sbus/mgx.c mgx
Added files:
Index: src/sys/dev/sbus/mgx.c
diff -u /dev/null src/sys/dev/sbus/mgx.c:1.1
--- /dev/null Tue Dec 16 21:01:34 2014
+++ src/sys/dev/sbus/mgx.c Tue Dec 16 21:01:34 2014
@@ -0,0 +1,368 @@
+/* $NetBSD: mgx.c,v 1.1 2014/12/16 21:01:34 macallan Exp $ */
+
+/*-
+ * Copyright (c) 2014 Michael Lorenz
+ * 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 NETBSD FOUNDATION, INC. AND CONTRIBUTORS
+ * ``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 FOUNDATION OR CONTRIBUTORS
+ * 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.
+ */
+
+/* a console driver for the SSB 4096V-MGX graphics card */
+
+#include <sys/cdefs.h>
+__KERNEL_RCSID(0, "$NetBSD: mgx.c,v 1.1 2014/12/16 21:01:34 macallan Exp $");
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/buf.h>
+#include <sys/device.h>
+#include <sys/ioctl.h>
+#include <sys/conf.h>
+#include <sys/kmem.h>
+
+#include <sys/bus.h>
+#include <machine/autoconf.h>
+
+#include <dev/sbus/sbusvar.h>
+#include <dev/sun/fbio.h>
+#include <dev/sun/fbvar.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 <dev/ic/vgareg.h>
+#include <dev/sbus/mgxreg.h>
+
+#include "opt_wsemul.h"
+
+
+struct mgx_softc {
+ device_t sc_dev;
+ bus_space_tag_t sc_tag;
+ bus_space_handle_t sc_blith;
+ bus_space_handle_t sc_vgah;
+ bus_addr_t sc_paddr;
+ void *sc_fbaddr;
+ int sc_width;
+ int sc_height;
+ int sc_stride;
+ int sc_fbsize;
+ int sc_mode;
+ u_char sc_cmap_red[256];
+ u_char sc_cmap_green[256];
+ u_char sc_cmap_blue[256];
+ struct vcons_screen sc_console_screen;
+ struct wsscreen_descr sc_defaultscreen_descr;
+ const struct wsscreen_descr *sc_screens[1];
+ struct wsscreen_list sc_screenlist;
+ struct vcons_data vd;
+};
+
+static int mgx_match(device_t, cfdata_t, void *);
+static void mgx_attach(device_t, device_t, void *);
+static int mgx_ioctl(void *, void *, u_long, void *, int,
+ struct lwp*);
+static paddr_t mgx_mmap(void *, void *, off_t, int);
+static void mgx_init_screen(void *, struct vcons_screen *, int,
+ long *);
+static void mgx_write_dac(struct mgx_softc *, int, int, int, int);
+static void mgx_setup(struct mgx_softc *, int);
+static void mgx_init_palette(struct mgx_softc *);
+
+CFATTACH_DECL_NEW(mgx, sizeof(struct mgx_softc),
+ mgx_match, mgx_attach, NULL, NULL);
+
+struct wsdisplay_accessops mgx_accessops = {
+ mgx_ioctl,
+ mgx_mmap,
+ NULL, /* vcons_alloc_screen */
+ NULL, /* vcons_free_screen */
+ NULL, /* vcons_show_screen */
+ NULL, /* load_font */
+ NULL, /* polls */
+ NULL, /* scroll */
+};
+
+static int
+mgx_match(device_t parent, cfdata_t cf, void *aux)
+{
+ struct sbus_attach_args *sa = aux;
+
+ if (strcmp("SMSI,mgx", sa->sa_name) == 0)
+ return 100;
+ return 0;
+}
+
+/*
+ * Attach a display. We need to notice if it is the console, too.
+ */
+static void
+mgx_attach(device_t parent, device_t self, void *args)
+{
+ struct mgx_softc *sc = device_private(self);
+ struct sbus_attach_args *sa = args;
+ struct wsemuldisplaydev_attach_args aa;
+ struct rasops_info *ri;
+ unsigned long defattr;
+ bus_space_handle_t bh;
+ int node = sa->sa_node;
+ int isconsole;
+
+ aprint_normal("\n");
+ sc->sc_dev = self;
+ sc->sc_tag = sa->sa_bustag;
+
+ sc->sc_paddr = sbus_bus_addr(sa->sa_bustag, sa->sa_slot,
+ sa->sa_reg[8].oa_base);
+
+ /* read geometry information from the device tree */
+ sc->sc_width = prom_getpropint(sa->sa_node, "width", 1152);
+ sc->sc_height = prom_getpropint(sa->sa_node, "height", 900);
+ sc->sc_stride = prom_getpropint(sa->sa_node, "linebytes", 900);
+ sc->sc_fbsize = sc->sc_height * sc->sc_stride;
+ sc->sc_fbaddr = NULL; //(void *)(unsigned long)prom_getpropint(sa->sa_node, "address", 0);
+ if (sc->sc_fbaddr == NULL) {
+ if (sbus_bus_map(sa->sa_bustag,
+ sa->sa_slot,
+ sa->sa_reg[8].oa_base,
+ sc->sc_fbsize,
+ BUS_SPACE_MAP_LINEAR, &bh) != 0) {
+ aprint_error_dev(self, "cannot map framebuffer\n");
+ return;
+ }
+ sc->sc_fbaddr = bus_space_vaddr(sa->sa_bustag, bh);
+ }
+
+ aprint_normal_dev(self, "%d x %d\n", sc->sc_width, sc->sc_height);
+
+ if (sbus_bus_map(sa->sa_bustag,
+ sa->sa_slot,
+ sa->sa_reg[4].oa_base, 0x1000, 0,
+ &sc->sc_vgah) != 0) {
+ aprint_error("%s: couldn't map VGA registers\n",
+ device_xname(sc->sc_dev));
+ return;
+ }
+
+ if (sbus_bus_map(sa->sa_bustag,
+ sa->sa_slot,
+ sa->sa_reg[5].oa_base, 0x1000, 0,
+ &sc->sc_blith) != 0) {
+ aprint_error("%s: couldn't map blitter registers\n",
+ device_xname(sc->sc_dev));
+ return;
+ }
+
+ mgx_setup(sc, 8);
+
+ sc->sc_defaultscreen_descr = (struct wsscreen_descr) {
+ "default",
+ 0, 0,
+ NULL,
+ 8, 16,
+ WSSCREEN_WSCOLORS | WSSCREEN_HILIT,
+ NULL
+ };
+ sc->sc_screens[0] = &sc->sc_defaultscreen_descr;
+ sc->sc_screenlist = (struct wsscreen_list){1, sc->sc_screens};
+
+ isconsole = fb_is_console(node);
+
+ sc->sc_mode = WSDISPLAYIO_MODE_EMUL;
+ wsfont_init();
+
+ vcons_init(&sc->vd, sc, &sc->sc_defaultscreen_descr, &mgx_accessops);
+ sc->vd.init_screen = mgx_init_screen;
+
+ vcons_init_screen(&sc->vd, &sc->sc_console_screen, 1, &defattr);
+ sc->sc_console_screen.scr_flags |= VCONS_SCREEN_IS_STATIC;
+
+ ri = &sc->sc_console_screen.scr_ri;
+
+ sc->sc_defaultscreen_descr.nrows = ri->ri_rows;
+ sc->sc_defaultscreen_descr.ncols = ri->ri_cols;
+ sc->sc_defaultscreen_descr.textops = &ri->ri_ops;
+ sc->sc_defaultscreen_descr.capabilities = ri->ri_caps;
+
+ mgx_init_palette(sc);
+
+ if(isconsole) {
+ wsdisplay_cnattach(&sc->sc_defaultscreen_descr, ri, 0, 0, defattr);
+ vcons_replay_msgbuf(&sc->sc_console_screen);
+ }
+
+ aa.console = isconsole;
+ aa.scrdata = &sc->sc_screenlist;
+ aa.accessops = &mgx_accessops;
+ aa.accesscookie = &sc->vd;
+
+ config_found(self, &aa, wsemuldisplaydevprint);
+}
+
+static void
+mgx_write_vga(struct mgx_softc *sc, uint32_t reg, uint8_t val)
+{
+ bus_space_write_1(sc->sc_tag, sc->sc_vgah, reg ^ 3, val);
+}
+
+static void
+mgx_write_dac(struct mgx_softc *sc, int idx, int r, int g, int b)
+{
+ mgx_write_vga(sc, VGA_BASE + VGA_DAC_ADDRW, idx);
+ mgx_write_vga(sc, VGA_BASE + VGA_DAC_PALETTE, r);
+ mgx_write_vga(sc, VGA_BASE + VGA_DAC_PALETTE, g);
+ mgx_write_vga(sc, VGA_BASE + VGA_DAC_PALETTE, b);
+}
+
+static void
+mgx_init_palette(struct mgx_softc *sc)
+{
+ struct rasops_info *ri = &sc->sc_console_screen.scr_ri;
+ int i, j = 0;
+ uint8_t cmap[768];
+
+ rasops_get_cmap(ri, cmap, sizeof(cmap));
+ for (i = 0; i < 256; i++) {
+ sc->sc_cmap_red[i] = cmap[j];
+ sc->sc_cmap_green[i] = cmap[j + 1];
+ sc->sc_cmap_blue[i] = cmap[j + 2];
+ mgx_write_dac(sc, i, cmap[j], cmap[j + 1], cmap[j + 2]);
+ j += 3;
+ }
+}
+
+static void
+mgx_setup(struct mgx_softc *sc, int depth)
+{
+}
+
+static void
+mgx_init_screen(void *cookie, struct vcons_screen *scr,
+ int existing, long *defattr)
+{
+ struct mgx_softc *sc = cookie;
+ struct rasops_info *ri = &scr->scr_ri;
+
+ ri->ri_depth = 8;
+ ri->ri_width = sc->sc_width;
+ ri->ri_height = sc->sc_height;
+ ri->ri_stride = sc->sc_stride;
+ ri->ri_flg = RI_CENTER;
+
+#if _LP64
+ /*
+ * XXX
+ * Assuming all 64bit SPARCs are fast enough to render anti-aliased
+ * text on the fly. Matters only as long as we don't have acceleration
+ * and glyphcache.
+ */
+ if (ri->ri_depth == 8)
+ ri->ri_flg |= RI_8BIT_IS_RGB | RI_ENABLE_ALPHA;
+#endif
+
+ ri->ri_bits = sc->sc_fbaddr;
+ scr->scr_flags |= VCONS_DONT_READ;
+
+ rasops_init(ri, 0, 0);
+
+ ri->ri_caps = WSSCREEN_REVERSE | WSSCREEN_WSCOLORS;
+
+ rasops_reconfig(ri, ri->ri_height / ri->ri_font->fontheight,
+ ri->ri_width / ri->ri_font->fontwidth);
+}
+
+static int
+mgx_ioctl(void *v, void *vs, u_long cmd, void *data, int flag,
+ struct lwp *l)
+{
+ struct vcons_data *vd = v;
+ struct mgx_softc *sc = vd->cookie;
+ struct wsdisplay_fbinfo *wdf;
+ struct vcons_screen *ms = vd->active;
+
+ switch (cmd) {
+ case WSDISPLAYIO_GTYPE:
+ *(u_int *)data = WSDISPLAY_TYPE_MGX;
+ return 0;
+
+ case WSDISPLAYIO_GINFO:
+ wdf = (void *)data;
+ wdf->height = sc->sc_height;
+ wdf->width = sc->sc_width;
+ wdf->depth = 8;
+ wdf->cmsize = 256;
+ return 0;
+
+ case FBIOGVIDEO:
+ case WSDISPLAYIO_GVIDEO:
+ *(int *)data = 1;
+ return 0;
+
+ case WSDISPLAYIO_SVIDEO:
+ case FBIOSVIDEO:
+ return 0;
+
+ case WSDISPLAYIO_LINEBYTES:
+ {
+ int *ret = (int *)data;
+ *ret = sc->sc_stride;
+ }
+ return 0;
+
+ 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)
+ {
+ mgx_setup(sc, 8);
+ vcons_redraw_screen(ms);
+ } else {
+ mgx_setup(sc, 32);
+ }
+ }
+ }
+ }
+
+ return EPASSTHROUGH;
+}
+
+static paddr_t
+mgx_mmap(void *v, void *vs, off_t offset, int prot)
+{
+ struct vcons_data *vd = v;
+ struct mgx_softc *sc = vd->cookie;
+
+ /* regular fb mapping at 0 */
+ if ((offset >= 0) && (offset < 0x400000)) {
+ return bus_space_mmap(sc->sc_tag, sc->sc_paddr,
+ offset, prot, BUS_SPACE_MAP_LINEAR);
+ }
+
+ return -1;
+}
Index: src/sys/dev/sbus/mgxreg.h
diff -u /dev/null src/sys/dev/sbus/mgxreg.h:1.1
--- /dev/null Tue Dec 16 21:01:34 2014
+++ src/sys/dev/sbus/mgxreg.h Tue Dec 16 21:01:34 2014
@@ -0,0 +1,34 @@
+/* $NetBSD: mgxreg.h,v 1.1 2014/12/16 21:01:34 macallan Exp $ */
+
+/*-
+ * Copyright (c) 2014 Michael Lorenz
+ * 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 NETBSD FOUNDATION, INC. AND CONTRIBUTORS
+ * ``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 FOUNDATION OR CONTRIBUTORS
+ * 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.
+ */
+
+#ifndef MGX_REG_H
+#define MGX_REG_H
+
+#define VGA_BASE 0x3c0
+
+#endif /* MGX_REG_H */
\ No newline at end of file
