add genfb, a generic framebuffer console driver that's configured via
device properties - all it needs is width and height in pixels, stride in bytes, depth in bits and the framebuffer address. Features: - unaccelerated fb console with colours and virtual consoles - split into console handling and bus frontend - so far there is only a PCI bus frontend which allows to mmap BARs belonging to the graphics controller, others should be easy to add. TODO: - find an opaque way to change the palette ( probably pass a function pointer as property ) since this would need to call some firmware interface which is pretty much always MD - find a clean way to mmap the framebuffer, just returning the physical address works on macppc but not on other architectures. Problem is, that we cannot rely on the address being a bus address - on macppc it is, but for instance on sparc64 it's not.
This commit is contained in:
macallan
parent
4fab8ae973
commit
4cf8aa1d7f
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# $NetBSD: files.wsfb,v 1.1 2007/04/07 03:41:26 macallan Exp $
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#
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# wsdisplay framebuffer drivers
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#
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# some generic flags that drivers may or may not honour
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defflag opt_wsfb.h WSFB_FAKE_VGA_FB # allow mmap(0xa0000)
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defflag opt_wsfb.h WSFB_ALLOW_OTHERS # allow to mmap() foreign ranges
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# a generic framebuffer console
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device genfb: wsemuldisplaydev, rasops8, vcons, drm
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file dev/wsfb/genfb.c genfb
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defflag opt_genfb.h GENFB_DEBUG
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# a PCI frontend for genfb
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attach genfb at pci with pci_genfb
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file dev/wsfb/pci_genfb.c genfb
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# an SBus frontend for genfb
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#attach genfb at sbus with sbus_genfb
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#file dev/wsfb/sbus_genfb.c genfb
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/* $NetBSD: genfb.c,v 1.1 2007/04/07 03:41:26 macallan Exp $ */
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/*-
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* Copyright (c) 2007 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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* 3. Neither the name of The NetBSD Foundation nor the names of its
|
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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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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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: genfb.c,v 1.1 2007/04/07 03:41:26 macallan Exp $");
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/kernel.h>
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#include <sys/device.h>
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#include <sys/proc.h>
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#include <sys/mutex.h>
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#include <sys/ioctl.h>
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#include <sys/kernel.h>
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#include <sys/systm.h>
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#include <sys/kauth.h>
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#include <dev/wscons/wsconsio.h>
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#include <dev/wscons/wsdisplayvar.h>
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#include <dev/rasops/rasops.h>
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#include <dev/wsfont/wsfont.h>
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#include <dev/wscons/wsdisplay_vconsvar.h>
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#include <dev/wsfb/genfbvar.h>
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#include "opt_genfb.h"
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#include "opt_wsfb.h"
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static int genfb_ioctl(void *, void *, u_long, void *, int, struct lwp *);
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static paddr_t genfb_mmap(void *, void *, off_t, int);
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static void genfb_init_screen(void *, struct vcons_screen *, int, long *);
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static int genfb_putcmap(struct genfb_softc *, struct wsdisplay_cmap *);
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static int genfb_getcmap(struct genfb_softc *, struct wsdisplay_cmap *);
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static void genfb_restore_palette(struct genfb_softc *);
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static int genfb_putpalreg(struct genfb_softc *, uint8_t, uint8_t,
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uint8_t, uint8_t);
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extern const u_char rasops_cmap[768];
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struct wsdisplay_accessops genfb_accessops = {
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genfb_ioctl,
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genfb_mmap,
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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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int genfb_attach(struct genfb_softc *sc, struct genfb_ops *ops)
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{
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struct wsemuldisplaydev_attach_args aa;
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prop_dictionary_t dict;
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struct rasops_info *ri;
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long defattr;
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uint32_t fbaddr;
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int console, i, j;
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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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};
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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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memcpy(&sc->sc_ops, ops, sizeof(struct genfb_ops));
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sc->sc_mode = WSDISPLAYIO_MODE_EMUL;
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dict = device_properties(&sc->sc_dev);
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#ifdef GENFB_DEBUG
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printf(prop_dictionary_externalize(dict));
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#endif
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if (!prop_dictionary_get_uint32(dict, "width", &sc->sc_width))
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panic("no width property");
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if (!prop_dictionary_get_uint32(dict, "height", &sc->sc_height))
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panic("no height property");
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if (!prop_dictionary_get_uint32(dict, "depth", &sc->sc_depth))
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panic("no depth property");
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/* XXX */
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if (!prop_dictionary_get_uint32(dict, "address", &fbaddr))
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panic("no address property");
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sc->sc_fbaddr = fbaddr;
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sc->sc_fbsize = sc->sc_width * sc->sc_stride;
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if (!prop_dictionary_get_uint32(dict, "linebytes", &sc->sc_stride))
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sc->sc_stride = (sc->sc_width * sc->sc_depth) >> 3;
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prop_dictionary_get_bool(dict, "is_console", &console);
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vcons_init(&sc->vd, sc, &sc->sc_defaultscreen_descr,
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&genfb_accessops);
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sc->vd.init_screen = genfb_init_screen;
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ri = &sc->sc_console_screen.scr_ri;
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if (console) {
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vcons_init_screen(&sc->vd, &sc->sc_console_screen, 1,
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&defattr);
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sc->sc_console_screen.scr_flags |= VCONS_SCREEN_IS_STATIC;
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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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sc->sc_defaultscreen_descr.nrows = ri->ri_rows;
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sc->sc_defaultscreen_descr.ncols = ri->ri_cols;
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wsdisplay_cnattach(&sc->sc_defaultscreen_descr, ri, 0, 0,
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defattr);
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} else {
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/*
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* since we're not the console we can postpone the rest
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* until someone actually allocates a screen for us
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*/
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}
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j = 0;
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for (i = 0; i < 256; i++) {
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genfb_putpalreg(sc, i, rasops_cmap[j], rasops_cmap[j + 1],
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rasops_cmap[j + 2]);
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j += 3;
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}
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aa.console = console;
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aa.scrdata = &sc->sc_screenlist;
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aa.accessops = &genfb_accessops;
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aa.accesscookie = &sc->vd;
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config_found(&sc->sc_dev, &aa, wsemuldisplaydevprint);
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return 0;
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}
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static int
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genfb_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 genfb_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_GINFO:
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wdf = (void *)data;
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wdf->height = ms->scr_ri.ri_height;
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wdf->width = ms->scr_ri.ri_width;
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wdf->depth = ms->scr_ri.ri_depth;
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wdf->cmsize = 256;
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return 0;
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case WSDISPLAYIO_GETCMAP:
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return genfb_getcmap(sc,
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(struct wsdisplay_cmap *)data);
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case WSDISPLAYIO_PUTCMAP:
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return genfb_putcmap(sc,
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(struct wsdisplay_cmap *)data);
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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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sc->sc_mode = new_mode;
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if(new_mode == WSDISPLAYIO_MODE_EMUL) {
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genfb_restore_palette(sc);
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vcons_redraw_screen(ms);
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}
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}
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}
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return 0;
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default:
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if (sc->sc_ops.genfb_ioctl)
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return sc->sc_ops.genfb_ioctl(sc, vs, cmd,
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data, flag, l);
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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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genfb_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 genfb_softc *sc = vd->cookie;
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struct lwp *me;
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/* 'regular' framebuffer mmap()ing */
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if (offset < sc->sc_fbsize) {
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/* XXX */
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return sc->sc_fbaddr + offset;
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}
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/*
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* restrict all other mappings to processes with superuser privileges
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* or the kernel itself
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*/
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me = curlwp;
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if (me != NULL) {
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if (kauth_authorize_generic(me->l_cred, KAUTH_GENERIC_ISSUSER,
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NULL) != 0) {
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aprint_normal("%s: mmap() rejected.\n",
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sc->sc_dev.dv_xname);
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return -1;
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}
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}
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#ifdef WSFB_FAKE_VGA_FB
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if ((offset >= 0xa0000) && (offset < 0xbffff)) {
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/* XXX */
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return sc->sc_fbaddr - 0xa0000 + offset;
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}
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#endif
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if (sc->sc_ops.genfb_mmap)
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return sc->sc_ops.genfb_mmap(sc, vs, offset, prot);
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return -1;
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}
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static void
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genfb_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 genfb_softc *sc = cookie;
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struct rasops_info *ri = &scr->scr_ri;
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ri->ri_depth = sc->sc_depth;
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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 | RI_FULLCLEAR;
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ri->ri_bits = (char *)sc->sc_fbaddr;
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if (existing) {
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ri->ri_flg |= RI_CLEAR;
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}
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rasops_init(ri, sc->sc_height / 8, sc->sc_width / 8);
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ri->ri_caps = WSSCREEN_WSCOLORS;
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rasops_reconfig(ri, sc->sc_height / ri->ri_font->fontheight,
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sc->sc_width / ri->ri_font->fontwidth);
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ri->ri_hw = scr;
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}
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static int
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genfb_putcmap(struct genfb_softc *sc, struct wsdisplay_cmap *cm)
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{
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u_char *r, *g, *b;
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u_int index = cm->index;
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u_int count = cm->count;
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int i, error;
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u_char rbuf[256], gbuf[256], bbuf[256];
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#ifdef GENFB_DEBUG
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aprint_debug("putcmap: %d %d\n",index, count);
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#endif
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if (cm->index >= 256 || cm->count > 256 ||
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(cm->index + cm->count) > 256)
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return EINVAL;
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error = copyin(cm->red, &rbuf[index], count);
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if (error)
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return error;
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error = copyin(cm->green, &gbuf[index], count);
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if (error)
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return error;
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error = copyin(cm->blue, &bbuf[index], count);
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if (error)
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return error;
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memcpy(&sc->sc_cmap_red[index], &rbuf[index], count);
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memcpy(&sc->sc_cmap_green[index], &gbuf[index], count);
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memcpy(&sc->sc_cmap_blue[index], &bbuf[index], count);
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r = &sc->sc_cmap_red[index];
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g = &sc->sc_cmap_green[index];
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b = &sc->sc_cmap_blue[index];
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for (i = 0; i < count; i++) {
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genfb_putpalreg(sc, index, *r, *g, *b);
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index++;
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r++, g++, b++;
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}
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return 0;
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}
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static int
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genfb_getcmap(struct genfb_softc *sc, struct wsdisplay_cmap *cm)
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{
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u_int index = cm->index;
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u_int count = cm->count;
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int error;
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if (index >= 255 || count > 256 || index + count > 256)
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return EINVAL;
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error = copyout(&sc->sc_cmap_red[index], cm->red, count);
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if (error)
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return error;
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error = copyout(&sc->sc_cmap_green[index], cm->green, count);
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if (error)
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return error;
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error = copyout(&sc->sc_cmap_blue[index], cm->blue, count);
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if (error)
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return error;
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return 0;
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}
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static void
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genfb_restore_palette(struct genfb_softc *sc)
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{
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int i;
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for (i = 0; i < 256; i++) {
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genfb_putpalreg(sc, i, sc->sc_cmap_red[i],
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sc->sc_cmap_green[i], sc->sc_cmap_blue[i]);
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}
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}
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static int
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genfb_putpalreg(struct genfb_softc *sc, uint8_t idx, uint8_t r, uint8_t g,
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uint8_t b)
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{
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return 0;
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}
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@ -0,0 +1,73 @@
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/* $NetBSD: genfbvar.h,v 1.1 2007/04/07 03:41:26 macallan Exp $ */
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/*-
|
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* Copyright (c) 2007 Michael Lorenz
|
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* 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. Neither the name of The NetBSD Foundation nor the names of its
|
||||
* contributors may be used to endorse or promote products derived
|
||||
* from this software without specific prior written permission.
|
||||
*
|
||||
* 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.
|
||||
*/
|
||||
|
||||
#include <sys/cdefs.h>
|
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__KERNEL_RCSID(0, "$NetBSD: genfbvar.h,v 1.1 2007/04/07 03:41:26 macallan Exp $");
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|
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#ifndef GENFBVAR_H
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#define GENFBVAR_H
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#include <sys/param.h>
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#include <sys/buf.h>
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#include <sys/conf.h>
|
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#include <sys/device.h>
|
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|
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#include <dev/wscons/wsconsio.h>
|
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#include <dev/wscons/wsdisplayvar.h>
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#include <dev/rasops/rasops.h>
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#include <dev/wscons/wsdisplay_vconsvar.h>
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struct genfb_ops {
|
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int (*genfb_ioctl)(void *, void *, u_long, void *, int, struct lwp *);
|
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paddr_t (*genfb_mmap)(void *, void *, off_t, int);
|
||||
};
|
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|
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struct genfb_softc {
|
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struct device sc_dev;
|
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struct vcons_data vd;
|
||||
struct genfb_ops sc_ops;
|
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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;
|
||||
paddr_t sc_fbaddr;
|
||||
int sc_width, sc_height, sc_stride, sc_depth;
|
||||
size_t sc_fbsize;
|
||||
int sc_mode;
|
||||
u_char sc_cmap_red[256];
|
||||
u_char sc_cmap_green[256];
|
||||
u_char sc_cmap_blue[256];
|
||||
};
|
||||
|
||||
int genfb_attach(struct genfb_softc *, struct genfb_ops *);
|
||||
|
||||
#endif /* GENFBVAR_H */
|
||||
|
|
@ -0,0 +1,186 @@
|
|||
/* $NetBSD: pci_genfb.c,v 1.1 2007/04/07 03:41:26 macallan Exp $ */
|
||||
|
||||
/*-
|
||||
* Copyright (c) 2007 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.
|
||||
* 3. Neither the name of The NetBSD Foundation nor the names of its
|
||||
* contributors may be used to endorse or promote products derived
|
||||
* from this software without specific prior written permission.
|
||||
*
|
||||
* 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.
|
||||
*/
|
||||
|
||||
#include <sys/cdefs.h>
|
||||
__KERNEL_RCSID(0, "$NetBSD: pci_genfb.c,v 1.1 2007/04/07 03:41:26 macallan Exp $");
|
||||
|
||||
#include <sys/param.h>
|
||||
#include <sys/systm.h>
|
||||
#include <sys/kernel.h>
|
||||
#include <sys/device.h>
|
||||
#include <sys/proc.h>
|
||||
#include <sys/mutex.h>
|
||||
#include <sys/ioctl.h>
|
||||
#include <sys/kernel.h>
|
||||
#include <sys/systm.h>
|
||||
|
||||
#include <dev/pci/pcidevs.h>
|
||||
#include <dev/pci/pcireg.h>
|
||||
#include <dev/pci/pcivar.h>
|
||||
#include <dev/pci/pciio.h>
|
||||
|
||||
#include <dev/wsfb/genfbvar.h>
|
||||
|
||||
#include "opt_wsfb.h"
|
||||
#include "opt_genfb.h"
|
||||
|
||||
struct range {
|
||||
bus_addr_t offset;
|
||||
bus_size_t size;
|
||||
int flags;
|
||||
};
|
||||
|
||||
struct pci_genfb_softc {
|
||||
struct genfb_softc sc_gen;
|
||||
|
||||
pci_chipset_tag_t sc_pc;
|
||||
pcitag_t sc_pcitag;
|
||||
bus_space_tag_t sc_memt;
|
||||
bus_space_tag_t sc_iot;
|
||||
struct range sc_ranges[8];
|
||||
int sc_ranges_used;
|
||||
};
|
||||
|
||||
static int pci_genfb_match(struct device *, struct cfdata *, void *);
|
||||
static void pci_genfb_attach(struct device *, struct device *, void *);
|
||||
static int pci_genfb_ioctl(void *, void *, u_long, void *, int,
|
||||
struct lwp *);
|
||||
static paddr_t pci_genfb_mmap(void *, void *, off_t, int);
|
||||
|
||||
CFATTACH_DECL(pci_genfb, sizeof(struct pci_genfb_softc),
|
||||
pci_genfb_match, pci_genfb_attach, NULL, NULL);
|
||||
|
||||
static int
|
||||
pci_genfb_match(struct device *parent, struct cfdata *match, void *aux)
|
||||
{
|
||||
struct pci_attach_args *pa = aux;
|
||||
|
||||
if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_APPLE &&
|
||||
PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_APPLE_CONTROL)
|
||||
return 1;
|
||||
|
||||
if (PCI_CLASS(pa->pa_class) == PCI_CLASS_DISPLAY)
|
||||
return 1;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static void
|
||||
pci_genfb_attach(struct device *parent, struct device *self, void *aux)
|
||||
{
|
||||
struct pci_genfb_softc *sc = (struct pci_genfb_softc *)self;
|
||||
struct pci_attach_args *pa = aux;
|
||||
struct genfb_ops ops;
|
||||
int idx, bar, type;
|
||||
char devinfo[256];
|
||||
|
||||
pci_devinfo(pa->pa_id, pa->pa_class, 0, devinfo, sizeof(devinfo));
|
||||
printf(": %s\n", devinfo);
|
||||
printf(prop_dictionary_externalize(device_properties(self)));
|
||||
|
||||
sc->sc_memt = pa->pa_memt;
|
||||
sc->sc_iot = pa->pa_iot;
|
||||
sc->sc_pc = pa->pa_pc;
|
||||
sc->sc_pcitag = pa->pa_tag;
|
||||
|
||||
/* mmap()able bus ranges */
|
||||
idx = 0;
|
||||
bar = 0x10;
|
||||
while (bar < 0x30) {
|
||||
|
||||
type = pci_mapreg_type(sc->sc_pc, sc->sc_pcitag, bar);
|
||||
if ((type == PCI_MAPREG_TYPE_MEM) ||
|
||||
(type == PCI_MAPREG_TYPE_ROM)) {
|
||||
|
||||
pci_mapreg_info(sc->sc_pc, sc->sc_pcitag, bar, type,
|
||||
&sc->sc_ranges[idx].offset,
|
||||
&sc->sc_ranges[idx].size,
|
||||
&sc->sc_ranges[idx].flags);
|
||||
idx++;
|
||||
}
|
||||
bar += 4;
|
||||
}
|
||||
sc->sc_ranges_used = idx;
|
||||
|
||||
ops.genfb_ioctl = pci_genfb_ioctl;
|
||||
ops.genfb_mmap = pci_genfb_mmap;
|
||||
|
||||
genfb_attach(&sc->sc_gen, &ops);
|
||||
}
|
||||
|
||||
static int
|
||||
pci_genfb_ioctl(void *v, void *vs, u_long cmd, void *data, int flag,
|
||||
struct lwp *l)
|
||||
{
|
||||
struct pci_genfb_softc *sc = v;
|
||||
|
||||
switch (cmd) {
|
||||
case WSDISPLAYIO_GTYPE:
|
||||
*(u_int *)data = WSDISPLAY_TYPE_PCIMISC;
|
||||
return 0;
|
||||
|
||||
/* PCI config read/write passthrough. */
|
||||
case PCI_IOC_CFGREAD:
|
||||
case PCI_IOC_CFGWRITE:
|
||||
return (pci_devioctl(sc->sc_pc, sc->sc_pcitag,
|
||||
cmd, data, flag, l));
|
||||
}
|
||||
|
||||
return EPASSTHROUGH;
|
||||
}
|
||||
|
||||
static paddr_t
|
||||
pci_genfb_mmap(void *v, void *vs, off_t offset, int prot)
|
||||
{
|
||||
struct pci_genfb_softc *sc = v;
|
||||
struct range *r;
|
||||
int i;
|
||||
|
||||
#ifdef macppc
|
||||
/* allow to map our IO space */
|
||||
if ((offset >= 0xf2000000) && (offset < 0xf2800000)) {
|
||||
return bus_space_mmap(sc->sc_iot, offset-0xf2000000, 0, prot,
|
||||
BUS_SPACE_MAP_LINEAR);
|
||||
}
|
||||
#endif
|
||||
|
||||
/* allow to mmap() our BARs */
|
||||
for (i = 0; i < sc->sc_ranges_used; i++) {
|
||||
|
||||
r = &sc->sc_ranges[i];
|
||||
if ((offset >= r->offset) && (offset < (r->offset + r->size))) {
|
||||
return bus_space_mmap(sc->sc_memt, offset, 0, prot,
|
||||
r->flags);
|
||||
}
|
||||
}
|
||||
|
||||
return -1;
|
||||
}
|
||||
Loading…
Reference in New Issue