diff options
Diffstat (limited to 'sys/arch')
| -rw-r--r-- | sys/arch/sparc/conf/GENERIC | 6 | ||||
| -rw-r--r-- | sys/arch/sparc/conf/SUN4C | 6 | ||||
| -rw-r--r-- | sys/arch/sparc/conf/SUN4M | 6 | ||||
| -rw-r--r-- | sys/arch/sparc/conf/files.sparc | 6 | ||||
| -rw-r--r-- | sys/arch/sparc/dev/mgx.c | 418 |
5 files changed, 438 insertions, 4 deletions
diff --git a/sys/arch/sparc/conf/GENERIC b/sys/arch/sparc/conf/GENERIC index af6c784c54c..c2fcda80f64 100644 --- a/sys/arch/sparc/conf/GENERIC +++ b/sys/arch/sparc/conf/GENERIC @@ -1,4 +1,4 @@ -# $OpenBSD: GENERIC,v 1.66 2003/05/14 01:13:48 miod Exp $ +# $OpenBSD: GENERIC,v 1.67 2003/05/14 06:39:49 miod Exp $ # $NetBSD: GENERIC,v 1.48 1997/08/23 19:19:01 mjacob Exp $ # Machine architecture; required by config(8) @@ -289,6 +289,10 @@ wsdisplay* at tvtwo? agten* at sbus? wsdisplay* at agten? +# Southland Media Systems MGX/MGXPlus framebuffer. +mgx* at sbus? +wsdisplay* at mgx? + # Microcontroller found on Tadpole tctrl0 at obio0 diff --git a/sys/arch/sparc/conf/SUN4C b/sys/arch/sparc/conf/SUN4C index 737640991a8..bfc6052ae36 100644 --- a/sys/arch/sparc/conf/SUN4C +++ b/sys/arch/sparc/conf/SUN4C @@ -1,4 +1,4 @@ -# $OpenBSD: SUN4C,v 1.43 2003/05/14 01:13:48 miod Exp $ +# $OpenBSD: SUN4C,v 1.44 2003/05/14 06:39:49 miod Exp $ # $NetBSD: GENERIC,v 1.48 1997/08/23 19:19:01 mjacob Exp $ # Machine architecture; required by config(8) @@ -133,6 +133,10 @@ wsdisplay* at tvtwo? agten* at sbus? wsdisplay* at agten? +# Southland Media Systems MGX/MGXPlus framebuffer. +mgx* at sbus? +wsdisplay* at mgx? + # SCSI bus layer. SCSI devices attach to the SCSI bus, which attaches # to the underlying hardware controller. scsibus* at esp? diff --git a/sys/arch/sparc/conf/SUN4M b/sys/arch/sparc/conf/SUN4M index 70f06a96d14..d61de374eb5 100644 --- a/sys/arch/sparc/conf/SUN4M +++ b/sys/arch/sparc/conf/SUN4M @@ -1,4 +1,4 @@ -# $OpenBSD: SUN4M,v 1.51 2003/05/14 01:53:02 fgsch Exp $ +# $OpenBSD: SUN4M,v 1.52 2003/05/14 06:39:49 miod Exp $ # $NetBSD: GENERIC,v 1.28.2.1 1996/07/02 23:55:22 jtc Exp $ # Machine architecture; required by config(8) @@ -172,6 +172,10 @@ wsdisplay* at tvtwo? agten* at sbus? wsdisplay* at agten? +# Southland Media Systems MGX/MGXPlus framebuffer. +mgx* at sbus? +wsdisplay* at mgx? + # Microcontroller found on Tadpole tctrl0 at obio0 diff --git a/sys/arch/sparc/conf/files.sparc b/sys/arch/sparc/conf/files.sparc index 19fddb6c766..86b6297a7f1 100644 --- a/sys/arch/sparc/conf/files.sparc +++ b/sys/arch/sparc/conf/files.sparc @@ -1,4 +1,4 @@ -# $OpenBSD: files.sparc,v 1.52 2003/05/13 17:24:10 miod Exp $ +# $OpenBSD: files.sparc,v 1.53 2003/05/14 06:39:49 miod Exp $ # $NetBSD: files.sparc,v 1.44 1997/08/31 21:29:16 pk Exp $ # @(#)files.sparc 8.1 (Berkeley) 7/19/93 @@ -215,6 +215,10 @@ device zx: wsemuldisplaydev, rasops32, wsemul_sun attach zx at sbus file arch/sparc/dev/zx.c zx +device mgx: wsemuldisplaydev, rasops8, wsemul_sun +attach mgx at sbus +file arch/sparc/dev/mgx.c mgx + # device definition in sys/conf/files attach le at sbus, ledma, lebuffer, obio file arch/sparc/dev/if_le.c le diff --git a/sys/arch/sparc/dev/mgx.c b/sys/arch/sparc/dev/mgx.c new file mode 100644 index 00000000000..a8ae5b4f2e3 --- /dev/null +++ b/sys/arch/sparc/dev/mgx.c @@ -0,0 +1,418 @@ +/* $OpenBSD: mgx.c,v 1.1 2003/05/14 06:39:49 miod Exp $ */ +/* + * Copyright (c) 2003, Miodrag Vallat. + * 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 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. + * + */ + +/* + * Driver for the Southlan Media Systems (now Quantum 3D) MGX and MGXPlus + * frame buffers. + * + * Pretty crude, due to the lack of documentation. Works as a dumb frame + * buffer in 8 bit mode, although the hardware can run in an 32 bit + * accelerated mode. Also, interrupts are not handled. + */ + +#include <sys/param.h> +#include <sys/systm.h> +#include <sys/buf.h> +#include <sys/device.h> +#include <sys/ioctl.h> +#include <sys/malloc.h> +#include <sys/mman.h> +#include <sys/tty.h> +#include <sys/conf.h> + +#include <uvm/uvm_extern.h> + +#include <machine/autoconf.h> +#include <machine/pmap.h> +#include <machine/cpu.h> +#include <machine/conf.h> + +#include <dev/wscons/wsconsio.h> +#include <dev/wscons/wsdisplayvar.h> +#include <dev/wscons/wscons_raster.h> +#include <dev/rasops/rasops.h> +#include <machine/fbvar.h> + +#include <sparc/dev/sbusvar.h> + +/* + * MGX PROM register layout + */ + +#define MGX_NREG 9 +#define MGX_REG_VIDC 4 /* video control and ramdac */ +#define MGX_REG_CTRL 5 /* control engine */ +#define MGX_REG_VRAM8 8 /* 8-bit memory space */ + +/* + * MGX VIDC empirical constants + */ +#define VIDC_DATA 0x03c6 +#define VIDC_COMMAND 0x03c7 +#define VIDC_CMAP 0x03ca +#define VD_DISABLEVIDEO 0x0020 + +/* per-display variables */ +struct mgx_softc { + struct sunfb sc_sunfb; /* common base device */ + struct sbusdev sc_sd; /* sbus device */ + struct rom_reg sc_phys; + u_int8_t sc_cmap[256 * 3]; /* shadow colormap */ + volatile u_int8_t *sc_vidc; /* ramdac registers */ + + int sc_nscreens; +}; + +struct wsscreen_descr mgx_stdscreen = { + "std", +}; + +const struct wsscreen_descr *mgx_scrlist[] = { + &mgx_stdscreen, +}; + +struct wsscreen_list mgx_screenlist = { + sizeof(mgx_scrlist) / sizeof(struct wsscreen_descr *), + mgx_scrlist +}; + +int mgx_ioctl(void *, u_long, caddr_t, int, struct proc *); +int mgx_alloc_screen(void *, const struct wsscreen_descr *, void **, + int *, int *, long *); +void mgx_free_screen(void *, void *); +int mgx_show_screen(void *, void *, int, void (*cb)(void *, int, int), + void *); +paddr_t mgx_mmap(void *, off_t, int); +void mgx_setcolor(void *, u_int, u_int8_t, u_int8_t, u_int8_t); +int mgx_getcmap(u_int8_t *, struct wsdisplay_cmap *); +int mgx_putcmap(u_int8_t *, struct wsdisplay_cmap *); +void mgx_loadcmap(struct mgx_softc *, int, int); +void mgx_burner(void *, u_int ,u_int); + +struct wsdisplay_accessops mgx_accessops = { + mgx_ioctl, + mgx_mmap, + mgx_alloc_screen, + mgx_free_screen, + mgx_show_screen, + NULL, /* load_font */ + NULL, /* scrollback */ + NULL, /* getchar */ + mgx_burner +}; + +int mgxmatch(struct device *, void *, void *); +void mgxattach(struct device *, struct device *, void *); + +struct cfattach mgx_ca = { + sizeof(struct mgx_softc), mgxmatch, mgxattach +}; + +struct cfdriver mgx_cd = { + NULL, "mgx", DV_DULL +}; + +/* + * Match an MGX or MGX+ card. + */ +int +mgxmatch(struct device *parent, void *vcf, void *aux) +{ + struct confargs *ca = aux; + struct romaux *ra = &ca->ca_ra; + + if (strcmp(ra->ra_name, "SMSI,mgx") != 0 && + strcmp(ra->ra_name, "mgx") != 0) + return (0); + + return (1); +} + +/* + * Attach an MGX frame buffer. + * This will keep the frame buffer in the actual PROM mode, and attach + * a wsdisplay child device to itself. + */ +void +mgxattach(struct device *parent, struct device *self, void *args) +{ + struct mgx_softc *sc = (struct mgx_softc *)self; + struct confargs *ca = args; + struct wsemuldisplaydev_attach_args waa; + int node, fbsize; + int isconsole; + + sc->sc_sunfb.sf_flags = self->dv_cfdata->cf_flags & FB_USERMASK; + node = ca->ca_ra.ra_node; + + printf(": %s", getpropstring(node, "model")); + + isconsole = node == fbnode; + + /* Check registers */ + if (ca->ca_ra.ra_nreg < MGX_NREG) { + printf("\n%s: expected %d registers, got %d\n", + self->dv_xname, MGX_NREG, ca->ca_ra.ra_nreg); + return; + } + + sc->sc_vidc = (volatile u_int8_t *)mapiodev( + &ca->ca_ra.ra_reg[MGX_REG_VIDC], 0, PAGE_SIZE); + + fb_setsize(&sc->sc_sunfb, 8, 1152, 900, node, ca->ca_bustype); + + /* Sanity check frame buffer memory */ + fbsize = getpropint(node, "fb_size", 0); + if (fbsize != 0 && sc->sc_sunfb.sf_fbsize > fbsize) { + printf("\n%s: expected at least %d bytes of vram, but card " + "only provides %d\n", + self->dv_xname, sc->sc_sunfb.sf_fbsize, fbsize); + return; + } + + /* Map the frame buffer memory area we're interested in */ + sc->sc_phys = ca->ca_ra.ra_reg[MGX_REG_VRAM8]; + sc->sc_sunfb.sf_ro.ri_bits = mapiodev(&sc->sc_phys, + 0, round_page(sc->sc_sunfb.sf_fbsize)); + sc->sc_sunfb.sf_ro.ri_hw = sc; + + fbwscons_init(&sc->sc_sunfb, isconsole); + + bzero(sc->sc_cmap, sizeof(sc->sc_cmap)); + fbwscons_setcolormap(&sc->sc_sunfb, mgx_setcolor); + + mgx_stdscreen.capabilities = sc->sc_sunfb.sf_ro.ri_caps; + mgx_stdscreen.nrows = sc->sc_sunfb.sf_ro.ri_rows; + mgx_stdscreen.ncols = sc->sc_sunfb.sf_ro.ri_cols; + mgx_stdscreen.textops = &sc->sc_sunfb.sf_ro.ri_ops; + + printf(", %dx%d\n", + sc->sc_sunfb.sf_width, sc->sc_sunfb.sf_height); + + if (isconsole) { + fbwscons_console_init(&sc->sc_sunfb, + &mgx_stdscreen, -1, mgx_burner); + } + + sbus_establish(&sc->sc_sd, &sc->sc_sunfb.sf_dev); + + waa.console = isconsole; + waa.scrdata = &mgx_screenlist; + waa.accessops = &mgx_accessops; + waa.accesscookie = sc; + config_found(self, &waa, wsemuldisplaydevprint); +} + +/* + * wsdisplay operations + */ + +int +mgx_ioctl(void *dev, u_long cmd, caddr_t data, int flags, struct proc *p) +{ + struct mgx_softc *sc = dev; + struct wsdisplay_cmap *cm; + struct wsdisplay_fbinfo *wdf; + int error; + + switch (cmd) { + case WSDISPLAYIO_GTYPE: + *(u_int *)data = WSDISPLAY_TYPE_MGX; + break; + case WSDISPLAYIO_GINFO: + wdf = (struct wsdisplay_fbinfo *)data; + wdf->height = sc->sc_sunfb.sf_height; + wdf->width = sc->sc_sunfb.sf_width; + wdf->depth = sc->sc_sunfb.sf_depth; + wdf->cmsize = 256; + break; + case WSDISPLAYIO_LINEBYTES: + *(u_int *)data = sc->sc_sunfb.sf_linebytes; + break; + + case WSDISPLAYIO_GETCMAP: + cm = (struct wsdisplay_cmap *)data; + error = mgx_getcmap(sc->sc_cmap, cm); + if (error != 0) + return (error); + break; + case WSDISPLAYIO_PUTCMAP: + cm = (struct wsdisplay_cmap *)data; + error = mgx_putcmap(sc->sc_cmap, cm); + if (error != 0) + return (error); + mgx_loadcmap(sc, cm->index, cm->count); + break; + + default: + return (-1); + } + + return (0); +} + +paddr_t +mgx_mmap(void *v, off_t offset, int prot) +{ + struct mgx_softc *sc = v; + + if (offset & PGOFSET) + return (-1); + + /* Allow mapping as a dumb framebuffer from offset 0 */ + if (offset >= 0 && offset < sc->sc_sunfb.sf_fbsize) { + return (REG2PHYS(&sc->sc_phys, offset) | PMAP_NC); + } + + return (-1); +} + +int +mgx_alloc_screen(void *v, const struct wsscreen_descr *type, + void **cookiep, int *curxp, int *curyp, long *attrp) +{ + struct mgx_softc *sc = v; + + if (sc->sc_nscreens > 0) + return (ENOMEM); + + *cookiep = &sc->sc_sunfb.sf_ro; + *curyp = 0; + *curxp = 0; + sc->sc_sunfb.sf_ro.ri_ops.alloc_attr(&sc->sc_sunfb.sf_ro, + 0, 0, 0, attrp); + sc->sc_nscreens++; + return (0); +} + +void +mgx_free_screen(void *v, void *cookie) +{ + struct mgx_softc *sc = v; + + sc->sc_nscreens--; +} + +int +mgx_show_screen(void *v, void *cookie, int waitok, + void (*cb)(void *, int, int), void *cbarg) +{ + return (0); +} + +void +mgx_burner(void *v, u_int on, u_int flags) +{ + struct mgx_softc *sc = v; + + /* A few magic constants here. Don't ask. */ + sc->sc_vidc[VIDC_COMMAND] = 1; + if (on) + sc->sc_vidc[VIDC_DATA] = 0x01; + else + sc->sc_vidc[VIDC_DATA] = 0x01 | VD_DISABLEVIDEO; +} + +/* + * Colormap handling routines + */ + +void +mgx_setcolor(void *v, u_int index, u_int8_t r, u_int8_t g, u_int8_t b) +{ + struct mgx_softc *sc = v; + + index *= 3; + sc->sc_cmap[index++] = r; + sc->sc_cmap[index++] = g; + sc->sc_cmap[index] = b; + + mgx_loadcmap(sc, index, 1); +} + +void +mgx_loadcmap(struct mgx_softc *sc, int start, int ncolors) +{ + u_int8_t *color; + int i; + + /* + * Apparently there is no way to load an incomplete cmap to this + * DAC. What a waste. + */ + for (color = sc->sc_cmap, i = 0; i < 256 * 3; i++) + sc->sc_vidc[VIDC_CMAP] = *color++; +} + +int +mgx_getcmap(u_int8_t *cm, struct wsdisplay_cmap *rcm) +{ + u_int index = rcm->index, count = rcm->count, i; + int error; + + if (index >= 256 || count > 256 - index) + return (EINVAL); + + for (i = 0; i < count; i++) { + if ((error = + copyout(cm + (index + i) * 3 + 0, &rcm->red[i], 1)) != 0) + return (error); + if ((error = + copyout(cm + (index + i) * 3 + 1, &rcm->green[i], 1)) != 0) + return (error); + if ((error = + copyout(cm + (index + i) * 3 + 2, &rcm->blue[i], 1)) != 0) + return (error); + } + + return (0); +} + +int +mgx_putcmap(u_int8_t *cm, struct wsdisplay_cmap *rcm) +{ + u_int index = rcm->index, count = rcm->count, i; + int error; + + if (index >= 256 || count > 256 - index) + return (EINVAL); + + for (i = 0; i < count; i++) { + if ((error = + copyin(&rcm->red[i], cm + (index + i) * 3 + 0, 1)) != 0) + return (error); + if ((error = + copyin(&rcm->green[i], cm + (index + i) * 3 + 1, 1)) != 0) + return (error); + if ((error = + copyin(&rcm->blue[i], cm + (index + i) * 3 + 2, 1)) != 0) + return (error); + } + + return (0); +} |