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.
This commit is contained in:
macallan
parent
082d249a16
commit
c6ec2ef82b
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@ -1,4 +1,4 @@
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# $NetBSD: files.sbus,v 1.39 2012/10/20 13:52:11 macallan Exp $
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# $NetBSD: files.sbus,v 1.40 2014/12/16 21:01:34 macallan Exp $
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#
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# Config file and device description for machine-independent SBUS code.
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# Included by ports that need it.
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@ -154,3 +154,9 @@ defflag opt_cgtwelve.h CG12_DEBUG CG12_COLOR CG12_SHADOW
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device cgtwelve: fb, rasops1, rasops8, wsemuldisplaydev, vcons
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attach cgtwelve at sbus
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file dev/sbus/cgtwelve.c cgtwelve
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# SSB MGX
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defflag opt_mgx.h MGX_DEBUG
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device mgx: fb, rasops8, wsemuldisplaydev, vcons
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attach mgx at sbus
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file dev/sbus/mgx.c mgx
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@ -0,0 +1,368 @@
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/* $NetBSD: mgx.c,v 1.1 2014/12/16 21:01:34 macallan Exp $ */
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/*-
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* Copyright (c) 2014 Michael Lorenz
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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/* a console driver for the SSB 4096V-MGX graphics card */
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: mgx.c,v 1.1 2014/12/16 21:01:34 macallan Exp $");
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/buf.h>
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#include <sys/device.h>
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#include <sys/ioctl.h>
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#include <sys/conf.h>
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#include <sys/kmem.h>
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#include <sys/bus.h>
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#include <machine/autoconf.h>
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#include <dev/sbus/sbusvar.h>
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#include <dev/sun/fbio.h>
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#include <dev/sun/fbvar.h>
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#include <dev/wscons/wsdisplayvar.h>
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#include <dev/wscons/wsconsio.h>
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#include <dev/wsfont/wsfont.h>
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#include <dev/rasops/rasops.h>
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#include <dev/wscons/wsdisplay_vconsvar.h>
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#include <dev/ic/vgareg.h>
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#include <dev/sbus/mgxreg.h>
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#include "opt_wsemul.h"
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struct mgx_softc {
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device_t sc_dev;
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bus_space_tag_t sc_tag;
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bus_space_handle_t sc_blith;
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bus_space_handle_t sc_vgah;
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bus_addr_t sc_paddr;
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void *sc_fbaddr;
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int sc_width;
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int sc_height;
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int sc_stride;
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int sc_fbsize;
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int sc_mode;
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u_char sc_cmap_red[256];
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u_char sc_cmap_green[256];
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u_char sc_cmap_blue[256];
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struct vcons_screen sc_console_screen;
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struct wsscreen_descr sc_defaultscreen_descr;
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const struct wsscreen_descr *sc_screens[1];
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struct wsscreen_list sc_screenlist;
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struct vcons_data vd;
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};
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static int mgx_match(device_t, cfdata_t, void *);
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static void mgx_attach(device_t, device_t, void *);
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static int mgx_ioctl(void *, void *, u_long, void *, int,
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struct lwp*);
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static paddr_t mgx_mmap(void *, void *, off_t, int);
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static void mgx_init_screen(void *, struct vcons_screen *, int,
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long *);
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static void mgx_write_dac(struct mgx_softc *, int, int, int, int);
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static void mgx_setup(struct mgx_softc *, int);
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static void mgx_init_palette(struct mgx_softc *);
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CFATTACH_DECL_NEW(mgx, sizeof(struct mgx_softc),
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mgx_match, mgx_attach, NULL, NULL);
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struct wsdisplay_accessops mgx_accessops = {
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mgx_ioctl,
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mgx_mmap,
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NULL, /* vcons_alloc_screen */
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NULL, /* vcons_free_screen */
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NULL, /* vcons_show_screen */
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NULL, /* load_font */
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NULL, /* polls */
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NULL, /* scroll */
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};
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static int
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mgx_match(device_t parent, cfdata_t cf, void *aux)
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{
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struct sbus_attach_args *sa = aux;
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if (strcmp("SMSI,mgx", sa->sa_name) == 0)
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return 100;
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return 0;
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}
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/*
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* Attach a display. We need to notice if it is the console, too.
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*/
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static void
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mgx_attach(device_t parent, device_t self, void *args)
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{
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struct mgx_softc *sc = device_private(self);
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struct sbus_attach_args *sa = args;
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struct wsemuldisplaydev_attach_args aa;
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struct rasops_info *ri;
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unsigned long defattr;
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bus_space_handle_t bh;
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int node = sa->sa_node;
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int isconsole;
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aprint_normal("\n");
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sc->sc_dev = self;
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sc->sc_tag = sa->sa_bustag;
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sc->sc_paddr = sbus_bus_addr(sa->sa_bustag, sa->sa_slot,
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sa->sa_reg[8].oa_base);
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/* read geometry information from the device tree */
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sc->sc_width = prom_getpropint(sa->sa_node, "width", 1152);
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sc->sc_height = prom_getpropint(sa->sa_node, "height", 900);
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sc->sc_stride = prom_getpropint(sa->sa_node, "linebytes", 900);
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sc->sc_fbsize = sc->sc_height * sc->sc_stride;
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sc->sc_fbaddr = NULL; //(void *)(unsigned long)prom_getpropint(sa->sa_node, "address", 0);
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if (sc->sc_fbaddr == NULL) {
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if (sbus_bus_map(sa->sa_bustag,
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sa->sa_slot,
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sa->sa_reg[8].oa_base,
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sc->sc_fbsize,
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BUS_SPACE_MAP_LINEAR, &bh) != 0) {
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aprint_error_dev(self, "cannot map framebuffer\n");
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return;
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}
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sc->sc_fbaddr = bus_space_vaddr(sa->sa_bustag, bh);
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}
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aprint_normal_dev(self, "%d x %d\n", sc->sc_width, sc->sc_height);
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if (sbus_bus_map(sa->sa_bustag,
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sa->sa_slot,
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sa->sa_reg[4].oa_base, 0x1000, 0,
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&sc->sc_vgah) != 0) {
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aprint_error("%s: couldn't map VGA registers\n",
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device_xname(sc->sc_dev));
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return;
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}
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if (sbus_bus_map(sa->sa_bustag,
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sa->sa_slot,
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sa->sa_reg[5].oa_base, 0x1000, 0,
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&sc->sc_blith) != 0) {
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aprint_error("%s: couldn't map blitter registers\n",
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device_xname(sc->sc_dev));
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return;
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}
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mgx_setup(sc, 8);
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sc->sc_defaultscreen_descr = (struct wsscreen_descr) {
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"default",
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0, 0,
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NULL,
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8, 16,
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WSSCREEN_WSCOLORS | WSSCREEN_HILIT,
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NULL
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};
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sc->sc_screens[0] = &sc->sc_defaultscreen_descr;
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sc->sc_screenlist = (struct wsscreen_list){1, sc->sc_screens};
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isconsole = fb_is_console(node);
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sc->sc_mode = WSDISPLAYIO_MODE_EMUL;
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wsfont_init();
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vcons_init(&sc->vd, sc, &sc->sc_defaultscreen_descr, &mgx_accessops);
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sc->vd.init_screen = mgx_init_screen;
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vcons_init_screen(&sc->vd, &sc->sc_console_screen, 1, &defattr);
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sc->sc_console_screen.scr_flags |= VCONS_SCREEN_IS_STATIC;
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ri = &sc->sc_console_screen.scr_ri;
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sc->sc_defaultscreen_descr.nrows = ri->ri_rows;
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sc->sc_defaultscreen_descr.ncols = ri->ri_cols;
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sc->sc_defaultscreen_descr.textops = &ri->ri_ops;
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sc->sc_defaultscreen_descr.capabilities = ri->ri_caps;
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mgx_init_palette(sc);
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if(isconsole) {
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wsdisplay_cnattach(&sc->sc_defaultscreen_descr, ri, 0, 0, defattr);
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vcons_replay_msgbuf(&sc->sc_console_screen);
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}
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aa.console = isconsole;
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aa.scrdata = &sc->sc_screenlist;
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aa.accessops = &mgx_accessops;
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aa.accesscookie = &sc->vd;
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config_found(self, &aa, wsemuldisplaydevprint);
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}
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static void
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mgx_write_vga(struct mgx_softc *sc, uint32_t reg, uint8_t val)
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{
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bus_space_write_1(sc->sc_tag, sc->sc_vgah, reg ^ 3, val);
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}
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static void
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mgx_write_dac(struct mgx_softc *sc, int idx, int r, int g, int b)
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{
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mgx_write_vga(sc, VGA_BASE + VGA_DAC_ADDRW, idx);
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mgx_write_vga(sc, VGA_BASE + VGA_DAC_PALETTE, r);
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mgx_write_vga(sc, VGA_BASE + VGA_DAC_PALETTE, g);
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mgx_write_vga(sc, VGA_BASE + VGA_DAC_PALETTE, b);
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}
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static void
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mgx_init_palette(struct mgx_softc *sc)
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{
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struct rasops_info *ri = &sc->sc_console_screen.scr_ri;
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int i, j = 0;
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uint8_t cmap[768];
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rasops_get_cmap(ri, cmap, sizeof(cmap));
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for (i = 0; i < 256; i++) {
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sc->sc_cmap_red[i] = cmap[j];
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sc->sc_cmap_green[i] = cmap[j + 1];
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sc->sc_cmap_blue[i] = cmap[j + 2];
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mgx_write_dac(sc, i, cmap[j], cmap[j + 1], cmap[j + 2]);
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j += 3;
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}
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}
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static void
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mgx_setup(struct mgx_softc *sc, int depth)
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{
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}
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static void
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mgx_init_screen(void *cookie, struct vcons_screen *scr,
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int existing, long *defattr)
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{
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struct mgx_softc *sc = cookie;
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struct rasops_info *ri = &scr->scr_ri;
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ri->ri_depth = 8;
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ri->ri_width = sc->sc_width;
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ri->ri_height = sc->sc_height;
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ri->ri_stride = sc->sc_stride;
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ri->ri_flg = RI_CENTER;
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#if _LP64
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/*
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* XXX
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* Assuming all 64bit SPARCs are fast enough to render anti-aliased
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* text on the fly. Matters only as long as we don't have acceleration
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* and glyphcache.
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*/
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if (ri->ri_depth == 8)
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ri->ri_flg |= RI_8BIT_IS_RGB | RI_ENABLE_ALPHA;
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#endif
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ri->ri_bits = sc->sc_fbaddr;
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scr->scr_flags |= VCONS_DONT_READ;
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rasops_init(ri, 0, 0);
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ri->ri_caps = WSSCREEN_REVERSE | WSSCREEN_WSCOLORS;
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rasops_reconfig(ri, ri->ri_height / ri->ri_font->fontheight,
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ri->ri_width / ri->ri_font->fontwidth);
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}
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static int
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mgx_ioctl(void *v, void *vs, u_long cmd, void *data, int flag,
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struct lwp *l)
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{
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struct vcons_data *vd = v;
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struct mgx_softc *sc = vd->cookie;
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struct wsdisplay_fbinfo *wdf;
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struct vcons_screen *ms = vd->active;
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switch (cmd) {
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case WSDISPLAYIO_GTYPE:
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*(u_int *)data = WSDISPLAY_TYPE_MGX;
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return 0;
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case WSDISPLAYIO_GINFO:
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wdf = (void *)data;
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wdf->height = sc->sc_height;
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wdf->width = sc->sc_width;
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wdf->depth = 8;
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wdf->cmsize = 256;
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return 0;
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case FBIOGVIDEO:
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case WSDISPLAYIO_GVIDEO:
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*(int *)data = 1;
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return 0;
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case WSDISPLAYIO_SVIDEO:
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case FBIOSVIDEO:
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return 0;
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case WSDISPLAYIO_LINEBYTES:
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{
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int *ret = (int *)data;
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*ret = sc->sc_stride;
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}
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return 0;
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case WSDISPLAYIO_SMODE:
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{
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int new_mode = *(int*)data;
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if (new_mode != sc->sc_mode)
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{
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sc->sc_mode = new_mode;
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if (new_mode == WSDISPLAYIO_MODE_EMUL)
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{
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mgx_setup(sc, 8);
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vcons_redraw_screen(ms);
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} else {
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mgx_setup(sc, 32);
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}
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}
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}
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}
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return EPASSTHROUGH;
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}
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static paddr_t
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mgx_mmap(void *v, void *vs, off_t offset, int prot)
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{
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struct vcons_data *vd = v;
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struct mgx_softc *sc = vd->cookie;
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/* regular fb mapping at 0 */
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if ((offset >= 0) && (offset < 0x400000)) {
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return bus_space_mmap(sc->sc_tag, sc->sc_paddr,
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offset, prot, BUS_SPACE_MAP_LINEAR);
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}
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return -1;
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}
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@ -0,0 +1,34 @@
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/* $NetBSD: mgxreg.h,v 1.1 2014/12/16 21:01:34 macallan Exp $ */
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/*-
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* Copyright (c) 2014 Michael Lorenz
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
|
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* 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
|
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
||||
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef MGX_REG_H
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#define MGX_REG_H
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#define VGA_BASE 0x3c0
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#endif /* MGX_REG_H */
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