add Sun /dev/fb* style goop
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macallan
parent
139ddb03dc
commit
da86cee20c
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@ -1,4 +1,4 @@
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/* $NetBSD: mgx.c,v 1.8 2016/03/04 22:08:09 macallan Exp $ */
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/* $NetBSD: mgx.c,v 1.9 2016/05/07 15:32:08 macallan Exp $ */
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/*-
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* Copyright (c) 2014 Michael Lorenz
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@ -29,7 +29,7 @@
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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 1.8 2016/03/04 22:08:09 macallan Exp $");
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__KERNEL_RCSID(0, "$NetBSD: mgx.c,v 1.9 2016/05/07 15:32:08 macallan Exp $");
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#include <sys/param.h>
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#include <sys/systm.h>
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@ -58,11 +58,14 @@ __KERNEL_RCSID(0, "$NetBSD: mgx.c,v 1.8 2016/03/04 22:08:09 macallan Exp $");
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#include <dev/ic/vgareg.h>
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#include <dev/sbus/mgxreg.h>
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#include "ioconf.h"
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#include "opt_wsemul.h"
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#include "opt_mgx.h"
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struct mgx_softc {
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device_t sc_dev;
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struct fbdevice sc_fb; /* frame buffer device */
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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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@ -136,6 +139,35 @@ struct wsdisplay_accessops mgx_accessops = {
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NULL, /* scroll */
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};
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static void mgx_unblank(device_t);
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dev_type_open(mgxopen);
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dev_type_close(mgxclose);
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dev_type_ioctl(mgxioctl);
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dev_type_mmap(mgxmmap);
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const struct cdevsw mgx_cdevsw = {
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.d_open = mgxopen,
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.d_close = mgxclose,
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.d_read = noread,
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.d_write = nowrite,
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.d_ioctl = mgxioctl,
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.d_stop = nostop,
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.d_tty = notty,
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.d_poll = nopoll,
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.d_mmap = mgxmmap,
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.d_kqfilter = nokqfilter,
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.d_discard = nodiscard,
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.d_flag = D_OTHER
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};
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/* frame buffer generic driver */
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static struct fbdriver mgx_fbdriver = {
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mgx_unblank, mgxopen, mgxclose, mgxioctl, nopoll, mgxmmap,
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nokqfilter
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};
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static inline 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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@ -199,6 +231,7 @@ mgx_attach(device_t parent, device_t self, void *args)
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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 fbdevice *fb = &sc->sc_fb;
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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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@ -321,6 +354,22 @@ mgx_attach(device_t parent, device_t self, void *args)
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config_found(self, &aa, wsemuldisplaydevprint);
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/* now the Sun fb goop */
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fb->fb_driver = &mgx_fbdriver;
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fb->fb_device = sc->sc_dev;
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fb->fb_flags = device_cfdata(sc->sc_dev)->cf_flags & FB_USERMASK;
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fb->fb_type.fb_type = FBTYPE_MGX;
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fb->fb_pixels = NULL;
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fb->fb_type.fb_depth = 32;
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fb->fb_type.fb_width = sc->sc_width;
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fb->fb_type.fb_height = sc->sc_height;
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fb->fb_linebytes = sc->sc_stride * 4;
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fb->fb_type.fb_cmsize = 256;
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fb->fb_type.fb_size = sc->sc_fbsize;
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fb_attach(&sc->sc_fb, isconsole);
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#if 0
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{
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uint32_t ap;
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@ -854,6 +903,22 @@ mgx_ioctl(void *v, void *vs, u_long cmd, void *data, int flag,
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wdf->cmsize = 256;
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return 0;
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case FBIOGTYPE:
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*(struct fbtype *)data = sc->sc_fb.fb_type;
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break;
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case FBIOGATTR:
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#define fba ((struct fbgattr *)data)
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fba->real_type = sc->sc_fb.fb_type.fb_type;
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fba->owner = 0; /* XXX ??? */
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fba->fbtype = sc->sc_fb.fb_type;
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fba->sattr.flags = 0;
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fba->sattr.emu_type = sc->sc_fb.fb_type.fb_type;
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fba->sattr.dev_specific[0] = -1;
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fba->emu_types[0] = sc->sc_fb.fb_type.fb_type;
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fba->emu_types[1] = -1;
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#undef fba
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break;
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case FBIOGVIDEO:
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case WSDISPLAYIO_GVIDEO:
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*(int *)data = sc->sc_video;
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@ -1096,3 +1161,88 @@ mgx_set_video(struct mgx_softc *sc, int v)
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}
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mgx_write_1(sc, ATR_DPMS, reg);
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}
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/* Sun fb dev goop */
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static void
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mgx_unblank(device_t dev)
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{
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struct mgx_softc *sc = device_private(dev);
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mgx_set_video(sc, WSDISPLAYIO_VIDEO_ON);
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}
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paddr_t
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mgxmmap(dev_t dev, off_t offset, int prot)
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{
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struct mgx_softc *sc = device_lookup_private(&mgx_cd, minor(dev));
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/* regular fb mapping at 0 */
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if ((offset >= 0) && (offset < sc->sc_fbsize)) {
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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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/*
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* Blitter registers at 0x80000000, only in mapped mode.
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* Restrict to root, even though I'm fairly sure the DMA engine lives
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* elsewhere ( and isn't documented anyway )
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*/
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if (kauth_authorize_machdep(kauth_cred_get(),
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KAUTH_MACHDEP_UNMANAGEDMEM,
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NULL, NULL, NULL, NULL) != 0) {
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aprint_normal("%s: mmap() rejected.\n",
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device_xname(sc->sc_dev));
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return -1;
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}
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if ((sc->sc_mode == WSDISPLAYIO_MODE_MAPPED) &&
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(offset >= 0x80000000) && (offset < 0x80001000)) {
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return bus_space_mmap(sc->sc_tag, sc->sc_rpaddr,
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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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int
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mgxopen(dev_t dev, int flags, int mode, struct lwp *l)
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{
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device_t dv = device_lookup(&mgx_cd, minor(dev));
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struct mgx_softc *sc = device_private(dv);
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if (dv == NULL)
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return ENXIO;
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if (sc->sc_mode == WSDISPLAYIO_MODE_MAPPED)
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return 0;
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sc->sc_mode = WSDISPLAYIO_MODE_MAPPED;
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mgx_setup(sc, 32);
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mgx_init_palette(sc);
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return 0;
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}
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int
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mgxclose(dev_t dev, int flags, int mode, struct lwp *l)
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{
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device_t dv = device_lookup(&mgx_cd, minor(dev));
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struct mgx_softc *sc = device_private(dv);
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struct vcons_screen *ms = sc->vd.active;
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if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL)
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return 0;
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sc->sc_mode = WSDISPLAYIO_MODE_EMUL;
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mgx_setup(sc, MGX_DEPTH);
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glyphcache_wipe(&sc->sc_gc);
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mgx_init_palette(sc);
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if (ms != NULL) {
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vcons_redraw_screen(ms);
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}
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return 0;
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}
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int
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mgxioctl(dev_t dev, u_long cmd, void *data, int flags, struct lwp *l)
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{
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struct mgx_softc *sc = device_lookup_private(&mgx_cd, minor(dev));
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return mgx_ioctl(&sc->vd, NULL, cmd, data, flags, l);
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}
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