NetBSD-5.0.2/sys/dev/pci/voodoofb.c
/* $NetBSD: voodoofb.c,v 1.18 2008/07/09 15:04:21 joerg Exp $ */
/*
* Copyright (c) 2005, 2006 Michael Lorenz
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE 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.
*/
/*
* A console driver for 3Dfx Voodoo3 graphics boards
* Thanks to Andreas Drewke (andreas_dr@gmx.de) for his Voodoo3 driver for BeOS
* which I used as reference / documentation
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: voodoofb.c,v 1.18 2008/07/09 15:04:21 joerg Exp $");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/device.h>
#include <sys/malloc.h>
#include <sys/callout.h>
#include <sys/kauth.h>
#include <uvm/uvm_extern.h>
#if defined(macppc) || defined (sparc64) || defined(ofppc)
#define HAVE_OPENFIRMWARE
#endif
/* XXX should be configurable */
#define VOODOOFB_VIDEOMODE 15
#ifdef HAVE_OPENFIRMWARE
#include <dev/ofw/openfirm.h>
#include <dev/ofw/ofw_pci.h>
#endif
#include <dev/videomode/videomode.h>
#include <dev/pci/pcivar.h>
#include <dev/pci/pcireg.h>
#include <dev/pci/pcidevs.h>
#include <dev/pci/pciio.h>
#include <dev/pci/voodoofbreg.h>
#include <dev/wscons/wsdisplayvar.h>
#include <dev/wscons/wsconsio.h>
#include <dev/wsfont/wsfont.h>
#include <dev/rasops/rasops.h>
#include <dev/wscons/wsdisplay_vconsvar.h>
#include "opt_wsemul.h"
struct voodoofb_softc {
device_t sc_dev;
pci_chipset_tag_t sc_pc;
pcitag_t sc_pcitag;
struct pci_attach_args sc_pa;
bus_space_tag_t sc_memt;
bus_space_tag_t sc_iot;
bus_space_handle_t sc_memh;
bus_space_tag_t sc_regt;
bus_space_tag_t sc_fbt;
bus_space_tag_t sc_ioregt;
bus_space_handle_t sc_regh;
bus_space_handle_t sc_fbh;
bus_space_handle_t sc_ioregh;
bus_addr_t sc_regs, sc_fb, sc_ioreg;
bus_size_t sc_regsize, sc_fbsize, sc_ioregsize;
void *sc_ih;
size_t memsize;
int memtype;
int bits_per_pixel;
int width, height, linebytes;
int sc_mode;
uint32_t sc_bg;
u_char sc_cmap_red[256];
u_char sc_cmap_green[256];
u_char sc_cmap_blue[256];
int sc_dacw;
struct vcons_data vd;
};
struct voodoo_regs {
uint8_t vr_crtc[31];
uint8_t vr_graph[9];
uint8_t vr_attr[21];
uint8_t vr_seq[5];
};
static struct vcons_screen voodoofb_console_screen;
extern const u_char rasops_cmap[768];
static int voodoofb_match(device_t, cfdata_t, void *);
static void voodoofb_attach(device_t, device_t, void *);
static int voodoofb_drm_print(void *, const char *);
static int voodoofb_drm_unmap(struct voodoofb_softc *);
static int voodoofb_drm_map(struct voodoofb_softc *);
CFATTACH_DECL_NEW(voodoofb, sizeof(struct voodoofb_softc), voodoofb_match,
voodoofb_attach, NULL, NULL);
static int voodoofb_is_console(struct pci_attach_args *);
static void voodoofb_init(struct voodoofb_softc *);
static void voodoofb_cursor(void *, int, int, int);
static void voodoofb_putchar(void *, int, int, u_int, long);
static void voodoofb_copycols(void *, int, int, int, int);
static void voodoofb_erasecols(void *, int, int, int, long);
static void voodoofb_copyrows(void *, int, int, int);
static void voodoofb_eraserows(void *, int, int, long);
#if 0
static int voodoofb_allocattr(void *, int, int, int, long *);
static void voodoofb_scroll(void *, void *, int);
static int voodoofb_load_font(void *, void *, struct wsdisplay_font *);
#endif
static int voodoofb_putcmap(struct voodoofb_softc *,
struct wsdisplay_cmap *);
static int voodoofb_getcmap(struct voodoofb_softc *,
struct wsdisplay_cmap *);
static int voodoofb_putpalreg(struct voodoofb_softc *, uint8_t, uint8_t,
uint8_t, uint8_t);
static void voodoofb_bitblt(struct voodoofb_softc *, int, int, int, int,
int, int);
static void voodoofb_rectfill(struct voodoofb_softc *, int, int, int, int,
int);
static void voodoofb_rectinvert(struct voodoofb_softc *, int, int, int,
int);
static void voodoofb_setup_mono(struct voodoofb_softc *, int, int, int,
int, uint32_t, uint32_t);
static void voodoofb_feed_line(struct voodoofb_softc *, int, uint8_t *);
#ifdef VOODOOFB_DEBUG
static void voodoofb_showpal(struct voodoofb_softc *);
#endif
static void voodoofb_wait_idle(struct voodoofb_softc *);
#ifdef VOODOOFB_ENABLE_INTR
static int voodoofb_intr(void *);
#endif
static void voodoofb_set_videomode(struct voodoofb_softc *,
const struct videomode *);
struct wsscreen_descr voodoofb_defaultscreen = {
"default",
0, 0,
NULL,
8, 16,
WSSCREEN_WSCOLORS | WSSCREEN_HILIT,
NULL,
};
const struct wsscreen_descr *_voodoofb_scrlist[] = {
&voodoofb_defaultscreen,
/* XXX other formats, graphics screen? */
};
struct wsscreen_list voodoofb_screenlist = {
sizeof(_voodoofb_scrlist) / sizeof(struct wsscreen_descr *), _voodoofb_scrlist
};
static int voodoofb_ioctl(void *, void *, u_long, void *, int,
struct lwp *);
static paddr_t voodoofb_mmap(void *, void *, off_t, int);
static void voodoofb_clearscreen(struct voodoofb_softc *);
static void voodoofb_init_screen(void *, struct vcons_screen *, int,
long *);
struct wsdisplay_accessops voodoofb_accessops = {
voodoofb_ioctl,
voodoofb_mmap,
NULL,
NULL,
NULL,
NULL, /* load_font */
NULL, /* polls */
NULL, /* scroll */
};
/*
* Inline functions for getting access to register aperture.
*/
static inline void
voodoo3_write32(struct voodoofb_softc *sc, uint32_t reg, uint32_t val)
{
bus_space_write_4(sc->sc_regt, sc->sc_regh, reg, val);
}
static inline uint32_t
voodoo3_read32(struct voodoofb_softc *sc, uint32_t reg)
{
return bus_space_read_4(sc->sc_regt, sc->sc_regh, reg);
}
static inline void
voodoo3_write_crtc(struct voodoofb_softc *sc, uint8_t reg, uint8_t val)
{
bus_space_write_1(sc->sc_ioregt, sc->sc_ioregh, CRTC_INDEX - 0x300, reg);
bus_space_write_1(sc->sc_ioregt, sc->sc_ioregh, CRTC_DATA - 0x300, val);
}
static inline void
voodoo3_write_seq(struct voodoofb_softc *sc, uint8_t reg, uint8_t val)
{
bus_space_write_1(sc->sc_ioregt, sc->sc_ioregh, SEQ_INDEX - 0x300, reg);
bus_space_write_1(sc->sc_ioregt, sc->sc_ioregh, SEQ_DATA - 0x300, val);
}
static inline void
voodoo3_write_gra(struct voodoofb_softc *sc, uint8_t reg, uint8_t val)
{
bus_space_write_1(sc->sc_ioregt, sc->sc_ioregh, GRA_INDEX - 0x300, reg);
bus_space_write_1(sc->sc_ioregt, sc->sc_ioregh, GRA_DATA - 0x300, val);
}
static inline void
voodoo3_write_attr(struct voodoofb_softc *sc, uint8_t reg, uint8_t val)
{
volatile uint8_t junk;
uint8_t index;
junk = bus_space_read_1(sc->sc_ioregt, sc->sc_ioregh, IS1_R - 0x300);
index = bus_space_read_1(sc->sc_ioregt, sc->sc_ioregh, ATT_IW - 0x300);
bus_space_write_1(sc->sc_ioregt, sc->sc_ioregh, ATT_IW - 0x300, reg);
bus_space_write_1(sc->sc_ioregt, sc->sc_ioregh, ATT_IW - 0x300, val);
bus_space_write_1(sc->sc_ioregt, sc->sc_ioregh, ATT_IW - 0x300, index);
}
static inline void
vga_outb(struct voodoofb_softc *sc, uint32_t reg, uint8_t val)
{
bus_space_write_1(sc->sc_ioregt, sc->sc_ioregh, reg - 0x300, val);
}
/* wait until there's room for len bytes in the FIFO */
static inline void
voodoo3_make_room(struct voodoofb_softc *sc, int len)
{
while ((voodoo3_read32(sc, STATUS) & 0x1f) < len);
}
static void
voodoofb_wait_idle(struct voodoofb_softc *sc)
{
int i = 0;
voodoo3_make_room(sc, 1);
voodoo3_write32(sc, COMMAND_3D, COMMAND_3D_NOP);
while (1) {
i = (voodoo3_read32(sc, STATUS) & STATUS_BUSY) ? 0 : i + 1;
if(i == 3) break;
}
}
static int
voodoofb_match(device_t parent, cfdata_t match, void *aux)
{
struct pci_attach_args *pa = (struct pci_attach_args *)aux;
if (PCI_CLASS(pa->pa_class) != PCI_CLASS_DISPLAY ||
PCI_SUBCLASS(pa->pa_class) != PCI_SUBCLASS_DISPLAY_VGA)
return 0;
if ((PCI_VENDOR(pa->pa_id)==PCI_VENDOR_3DFX) &&
(PCI_PRODUCT(pa->pa_id)>=PCI_PRODUCT_3DFX_VOODOO3))
return 100;
return 0;
}
static void
voodoofb_attach(device_t parent, device_t self, void *aux)
{
struct voodoofb_softc *sc = device_private(self);
struct pci_attach_args *pa = aux;
char devinfo[256];
struct wsemuldisplaydev_attach_args aa;
struct rasops_info *ri;
#ifdef VOODOOFB_ENABLE_INTR
pci_intr_handle_t ih;
const char *intrstr;
#endif
ulong defattr;
int console, width, height, i, j;
#ifdef HAVE_OPENFIRMWARE
int linebytes, depth, node;
#endif
uint32_t bg, fg, ul;
sc->sc_dev = self;
sc->sc_mode = WSDISPLAYIO_MODE_EMUL;
#ifdef HAVE_OPENFIRMWARE
node = pcidev_to_ofdev(pa->pa_pc, pa->pa_tag);
#endif
sc->sc_pc = pa->pa_pc;
sc->sc_pcitag = pa->pa_tag;
sc->sc_dacw = -1;
pci_devinfo(pa->pa_id, pa->pa_class, 0, devinfo, sizeof(devinfo));
printf(": %s (rev. 0x%02x)\n", devinfo, PCI_REVISION(pa->pa_class));
sc->sc_memt = pa->pa_memt;
sc->sc_iot = pa->pa_iot;
sc->sc_pa = *pa;
/* the framebuffer */
if (pci_mapreg_map(pa, 0x14, PCI_MAPREG_TYPE_MEM,
BUS_SPACE_MAP_CACHEABLE | BUS_SPACE_MAP_PREFETCHABLE |
BUS_SPACE_MAP_LINEAR,
&sc->sc_fbt, &sc->sc_fbh, &sc->sc_fb, &sc->sc_fbsize)) {
aprint_error_dev(self, "failed to map the frame buffer.\n");
}
/* memory-mapped registers */
if (pci_mapreg_map(pa, 0x10, PCI_MAPREG_TYPE_MEM, 0,
&sc->sc_regt, &sc->sc_regh, &sc->sc_regs, &sc->sc_regsize)) {
aprint_error_dev(self, "failed to map memory-mapped registers.\n");
}
/* IO-mapped registers */
if (pci_mapreg_map(pa, 0x18, PCI_MAPREG_TYPE_IO, 0,
&sc->sc_ioregt, &sc->sc_ioregh, &sc->sc_ioreg,
&sc->sc_ioregsize)) {
aprint_error_dev(self, "failed to map IO-mapped registers.\n");
}
voodoofb_init(sc);
/* we should read these from the chip instead of depending on OF */
width = height = -1;
#ifdef HAVE_OPENFIRMWARE
if (OF_getprop(node, "width", &width, 4) != 4)
OF_interpret("screen-width", 1, 1, &width);
if (OF_getprop(node, "height", &height, 4) != 4)
OF_interpret("screen-height", 1, 1, &height);
if (OF_getprop(node, "linebytes", &linebytes, 4) != 4)
linebytes = width; /* XXX */
if (OF_getprop(node, "depth", &depth, 4) != 4)
depth = 8; /* XXX */
if (width == -1 || height == -1)
return;
sc->width = width;
sc->height = height;
sc->bits_per_pixel = depth;
sc->linebytes = linebytes;
printf("%s: initial resolution %dx%d, %d bit\n", device_xname(self),
sc->width, sc->height, sc->bits_per_pixel);
#endif
/* XXX this should at least be configurable via kernel config */
voodoofb_set_videomode(sc, &videomode_list[VOODOOFB_VIDEOMODE]);
vcons_init(&sc->vd, sc, &voodoofb_defaultscreen, &voodoofb_accessops);
sc->vd.init_screen = voodoofb_init_screen;
console = voodoofb_is_console(pa);
ri = &voodoofb_console_screen.scr_ri;
if (console) {
vcons_init_screen(&sc->vd, &voodoofb_console_screen, 1,
&defattr);
voodoofb_console_screen.scr_flags |= VCONS_SCREEN_IS_STATIC;
voodoofb_defaultscreen.textops = &ri->ri_ops;
voodoofb_defaultscreen.capabilities = ri->ri_caps;
voodoofb_defaultscreen.nrows = ri->ri_rows;
voodoofb_defaultscreen.ncols = ri->ri_cols;
wsdisplay_cnattach(&voodoofb_defaultscreen, ri, 0, 0, defattr);
} else {
/*
* since we're not the console we can postpone the rest
* until someone actually allocates a screen for us
*/
voodoofb_set_videomode(sc, &videomode_list[0]);
}
printf("%s: %d MB aperture at 0x%08x, %d MB registers at 0x%08x\n",
device_xname(self), (u_int)(sc->sc_fbsize >> 20),
(u_int)sc->sc_fb, (u_int)(sc->sc_regsize >> 20),
(u_int)sc->sc_regs);
#ifdef VOODOOFB_DEBUG
printf("fb: %08lx\n", (ulong)ri->ri_bits);
#endif
j = 0;
for (i = 0; i < 256; i++) {
voodoofb_putpalreg(sc, i, rasops_cmap[j], rasops_cmap[j + 1],
rasops_cmap[j + 2]);
j += 3;
}
#ifdef VOODOOFB_ENABLE_INTR
/* Interrupt. We don't use it for anything yet */
if (pci_intr_map(pa, &ih)) {
aprint_error_dev(self, "failed to map interrupt\n");
return;
}
intrstr = pci_intr_string(sc->sc_pc, ih);
sc->sc_ih = pci_intr_establish(sc->sc_pc, ih, IPL_NET, voodoofb_intr,
sc);
if (sc->sc_ih == NULL) {
aprint_error_dev(self, "failed to establish interrupt");
if (intrstr != NULL)
printf(" at %s", intrstr);
printf("\n");
return;
}
printf("%s: interrupting at %s\n", device_xname(self), intrstr);
#endif
rasops_unpack_attr(defattr, &fg, &bg, &ul);
sc->sc_bg = ri->ri_devcmap[bg];
voodoofb_clearscreen(sc);
aa.console = console;
aa.scrdata = &voodoofb_screenlist;
aa.accessops = &voodoofb_accessops;
aa.accesscookie = &sc->vd;
config_found(self, &aa, wsemuldisplaydevprint);
config_found_ia(self, "drm", aux, voodoofb_drm_print);
}
static int
voodoofb_drm_print(void *opaque, const char *pnp)
{
if (pnp)
aprint_normal("drm at %s", pnp);
return UNCONF;
}
static int
voodoofb_drm_unmap(struct voodoofb_softc *sc)
{
printf("%s: releasing bus resources\n", device_xname(sc->sc_dev));
bus_space_unmap(sc->sc_ioregt, sc->sc_ioregh, sc->sc_ioregsize);
bus_space_unmap(sc->sc_regt, sc->sc_regh, sc->sc_regsize);
bus_space_unmap(sc->sc_fbt, sc->sc_fbh, sc->sc_fbsize);
return 0;
}
static int
voodoofb_drm_map(struct voodoofb_softc *sc)
{
if (pci_mapreg_map(&sc->sc_pa, 0x14, PCI_MAPREG_TYPE_MEM,
BUS_SPACE_MAP_CACHEABLE | BUS_SPACE_MAP_PREFETCHABLE |
BUS_SPACE_MAP_LINEAR,
&sc->sc_fbt, &sc->sc_fbh, &sc->sc_fb, &sc->sc_fbsize)) {
aprint_error_dev(sc->sc_dev, "failed to map the frame buffer.\n");
}
/* memory-mapped registers */
if (pci_mapreg_map(&sc->sc_pa, 0x10, PCI_MAPREG_TYPE_MEM, 0,
&sc->sc_regt, &sc->sc_regh, &sc->sc_regs, &sc->sc_regsize)) {
aprint_error_dev(sc->sc_dev, "failed to map memory-mapped registers.\n");
}
/* IO-mapped registers */
if (pci_mapreg_map(&sc->sc_pa, 0x18, PCI_MAPREG_TYPE_IO, 0,
&sc->sc_ioregt, &sc->sc_ioregh, &sc->sc_ioreg,
&sc->sc_ioregsize)) {
aprint_error_dev(sc->sc_dev, "failed to map IO-mapped registers.\n");
}
voodoofb_init(sc);
/* XXX this should at least be configurable via kernel config */
voodoofb_set_videomode(sc, &videomode_list[VOODOOFB_VIDEOMODE]);
return 0;
}
static int
voodoofb_putpalreg(struct voodoofb_softc *sc, uint8_t index, uint8_t r,
uint8_t g, uint8_t b)
{
uint32_t color;
sc->sc_cmap_red[index] = r;
sc->sc_cmap_green[index] = g;
sc->sc_cmap_blue[index] = b;
color = (r << 16) | (g << 8) | b;
voodoo3_make_room(sc, 2);
voodoo3_write32(sc, DACADDR, index);
voodoo3_write32(sc, DACDATA, color);
return 0;
}
static int
voodoofb_putcmap(struct voodoofb_softc *sc, struct wsdisplay_cmap *cm)
{
u_char *r, *g, *b;
u_int index = cm->index;
u_int count = cm->count;
int i, error;
u_char rbuf[256], gbuf[256], bbuf[256];
#ifdef VOODOOFB_DEBUG
printf("putcmap: %d %d\n",index, count);
#endif
if (cm->index >= 256 || cm->count > 256 ||
(cm->index + cm->count) > 256)
return EINVAL;
error = copyin(cm->red, &rbuf[index], count);
if (error)
return error;
error = copyin(cm->green, &gbuf[index], count);
if (error)
return error;
error = copyin(cm->blue, &bbuf[index], count);
if (error)
return error;
memcpy(&sc->sc_cmap_red[index], &rbuf[index], count);
memcpy(&sc->sc_cmap_green[index], &gbuf[index], count);
memcpy(&sc->sc_cmap_blue[index], &bbuf[index], count);
r = &sc->sc_cmap_red[index];
g = &sc->sc_cmap_green[index];
b = &sc->sc_cmap_blue[index];
for (i = 0; i < count; i++) {
voodoofb_putpalreg(sc, index, *r, *g, *b);
index++;
r++, g++, b++;
}
return 0;
}
static int
voodoofb_getcmap(struct voodoofb_softc *sc, struct wsdisplay_cmap *cm)
{
u_int index = cm->index;
u_int count = cm->count;
int error;
if (index >= 255 || count > 256 || index + count > 256)
return EINVAL;
error = copyout(&sc->sc_cmap_red[index], cm->red, count);
if (error)
return error;
error = copyout(&sc->sc_cmap_green[index], cm->green, count);
if (error)
return error;
error = copyout(&sc->sc_cmap_blue[index], cm->blue, count);
if (error)
return error;
return 0;
}
static int
voodoofb_is_console(struct pci_attach_args *pa)
{
#ifdef HAVE_OPENFIRMWARE
/* check if we're the /chosen console device */
int chosen, stdout, node, us;
us=pcidev_to_ofdev(pa->pa_pc, pa->pa_tag);
chosen = OF_finddevice("/chosen");
OF_getprop(chosen, "stdout", &stdout, 4);
node = OF_instance_to_package(stdout);
return(us == node);
#else
/* XXX how do we know we're console on i386? */
return 1;
#endif
}
static void
voodoofb_clearscreen(struct voodoofb_softc *sc)
{
voodoofb_rectfill(sc, 0, 0, sc->width, sc->height, sc->sc_bg);
}
/*
* wsdisplay_emulops
*/
static void
voodoofb_cursor(void *cookie, int on, int row, int col)
{
struct rasops_info *ri = cookie;
struct vcons_screen *scr = ri->ri_hw;
struct voodoofb_softc *sc = scr->scr_cookie;
int x, y, wi, he;
wi = ri->ri_font->fontwidth;
he = ri->ri_font->fontheight;
if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL) {
x = ri->ri_ccol * wi + ri->ri_xorigin;
y = ri->ri_crow * he + ri->ri_yorigin;
if (ri->ri_flg & RI_CURSOR) {
voodoofb_rectinvert(sc, x, y, wi, he);
ri->ri_flg &= ~RI_CURSOR;
}
ri->ri_crow = row;
ri->ri_ccol = col;
if (on)
{
x = ri->ri_ccol * wi + ri->ri_xorigin;
y = ri->ri_crow * he + ri->ri_yorigin;
voodoofb_rectinvert(sc, x, y, wi, he);
ri->ri_flg |= RI_CURSOR;
}
} else {
ri->ri_flg &= ~RI_CURSOR;
ri->ri_crow = row;
ri->ri_ccol = col;
}
}
#if 0
int
voodoofb_mapchar(void *cookie, int uni, u_int *index)
{
return 0;
}
#endif
static void
voodoofb_putchar(void *cookie, int row, int col, u_int c, long attr)
{
struct rasops_info *ri = cookie;
struct vcons_screen *scr = ri->ri_hw;
struct voodoofb_softc *sc = scr->scr_cookie;
if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL) {
uint8_t *data;
int fg, bg, uc, i;
int x, y, wi, he;
wi = ri->ri_font->fontwidth;
he = ri->ri_font->fontheight;
if (!CHAR_IN_FONT(c, ri->ri_font))
return;
bg = (u_char)ri->ri_devcmap[(attr >> 16) & 0xf];
fg = (u_char)ri->ri_devcmap[(attr >> 24) & 0xf];
x = ri->ri_xorigin + col * wi;
y = ri->ri_yorigin + row * he;
if (c == 0x20) {
voodoofb_rectfill(sc, x, y, wi, he, bg);
} else {
uc = c-ri->ri_font->firstchar;
data = (uint8_t *)ri->ri_font->data + uc *
ri->ri_fontscale;
voodoofb_setup_mono(sc, x, y, wi, he, fg, bg);
for (i = 0; i < he; i++) {
voodoofb_feed_line(sc,
ri->ri_font->stride, data);
data += ri->ri_font->stride;
}
}
}
}
static void
voodoofb_copycols(void *cookie, int row, int srccol, int dstcol, int ncols)
{
struct rasops_info *ri = cookie;
struct vcons_screen *scr = ri->ri_hw;
struct voodoofb_softc *sc = scr->scr_cookie;
int32_t xs, xd, y, width, height;
if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL) {
xs = ri->ri_xorigin + ri->ri_font->fontwidth * srccol;
xd = ri->ri_xorigin + ri->ri_font->fontwidth * dstcol;
y = ri->ri_yorigin + ri->ri_font->fontheight * row;
width = ri->ri_font->fontwidth * ncols;
height = ri->ri_font->fontheight;
voodoofb_bitblt(sc, xs, y, xd, y, width, height);
}
}
static void
voodoofb_erasecols(void *cookie, int row, int startcol, int ncols,
long fillattr)
{
struct rasops_info *ri = cookie;
struct vcons_screen *scr = ri->ri_hw;
struct voodoofb_softc *sc = scr->scr_cookie;
int32_t x, y, width, height, fg, bg, ul;
if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL) {
x = ri->ri_xorigin + ri->ri_font->fontwidth * startcol;
y = ri->ri_yorigin + ri->ri_font->fontheight * row;
width = ri->ri_font->fontwidth * ncols;
height = ri->ri_font->fontheight;
rasops_unpack_attr(fillattr, &fg, &bg, &ul);
voodoofb_rectfill(sc, x, y, width, height, ri->ri_devcmap[bg]);
}
}
static void
voodoofb_copyrows(void *cookie, int srcrow, int dstrow, int nrows)
{
struct rasops_info *ri = cookie;
struct vcons_screen *scr = ri->ri_hw;
struct voodoofb_softc *sc = scr->scr_cookie;
int32_t x, ys, yd, width, height;
if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL) {
x = ri->ri_xorigin;
ys = ri->ri_yorigin + ri->ri_font->fontheight * srcrow;
yd = ri->ri_yorigin + ri->ri_font->fontheight * dstrow;
width = ri->ri_emuwidth;
height = ri->ri_font->fontheight * nrows;
voodoofb_bitblt(sc, x, ys, x, yd, width, height);
}
}
static void
voodoofb_eraserows(void *cookie, int row, int nrows, long fillattr)
{
struct rasops_info *ri = cookie;
struct vcons_screen *scr = ri->ri_hw;
struct voodoofb_softc *sc = scr->scr_cookie;
int32_t x, y, width, height, fg, bg, ul;
if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL) {
rasops_unpack_attr(fillattr, &fg, &bg, &ul);
if ((row == 0) && (nrows == ri->ri_rows)) {
/* clear the whole screen */
voodoofb_rectfill(sc, 0, 0, ri->ri_width,
ri->ri_height, ri->ri_devcmap[bg]);
} else {
x = ri->ri_xorigin;
y = ri->ri_yorigin + ri->ri_font->fontheight * row;
width = ri->ri_emuwidth;
height = ri->ri_font->fontheight * nrows;
voodoofb_rectfill(sc, x, y, width, height,
ri->ri_devcmap[bg]);
}
}
}
static void
voodoofb_bitblt(struct voodoofb_softc *sc, int xs, int ys, int xd, int yd, int width, int height)
{
uint32_t fmt, blitcmd;
fmt = sc->linebytes | ((sc->bits_per_pixel +
((sc->bits_per_pixel == 8) ? 0 : 8)) << 13);
blitcmd = COMMAND_2D_S2S_BITBLT | (ROP_COPY << 24);
if (xs <= xd) {
blitcmd |= BIT(14);
xs += (width - 1);
xd += (width - 1);
}
if (ys <= yd) {
blitcmd |= BIT(15);
ys += (height - 1);
yd += (height - 1);
}
voodoo3_make_room(sc, 6);
voodoo3_write32(sc, SRCFORMAT, fmt);
voodoo3_write32(sc, DSTFORMAT, fmt);
voodoo3_write32(sc, DSTSIZE, width | (height << 16));
voodoo3_write32(sc, DSTXY, xd | (yd << 16));
voodoo3_write32(sc, SRCXY, xs | (ys << 16));
voodoo3_write32(sc, COMMAND_2D, blitcmd | SST_2D_GO);
}
static void
voodoofb_rectfill(struct voodoofb_softc *sc, int x, int y, int width,
int height, int colour)
{
uint32_t fmt, col;
col = (colour << 24) | (colour << 16) | (colour << 8) | colour;
fmt = sc->linebytes | ((sc->bits_per_pixel +
((sc->bits_per_pixel == 8) ? 0 : 8)) << 13);
voodoo3_make_room(sc, 6);
voodoo3_write32(sc, DSTFORMAT, fmt);
voodoo3_write32(sc, COLORFORE, colour);
voodoo3_write32(sc, COLORBACK, colour);
voodoo3_write32(sc, COMMAND_2D, COMMAND_2D_FILLRECT | (ROP_COPY << 24));
voodoo3_write32(sc, DSTSIZE, width | (height << 16));
voodoo3_write32(sc, LAUNCH_2D, x | (y << 16));
}
static void
voodoofb_rectinvert(struct voodoofb_softc *sc, int x, int y, int width,
int height)
{
uint32_t fmt;
fmt = sc->linebytes | ((sc->bits_per_pixel +
((sc->bits_per_pixel == 8) ? 0 : 8)) << 13);
voodoo3_make_room(sc, 6);
voodoo3_write32(sc, DSTFORMAT, fmt);
voodoo3_write32(sc, COMMAND_2D, COMMAND_2D_FILLRECT |
(ROP_INVERT << 24));
voodoo3_write32(sc, DSTSIZE, width | (height << 16));
voodoo3_write32(sc, DSTXY, x | (y << 16));
voodoo3_write32(sc, LAUNCH_2D, x | (y << 16));
}
static void
voodoofb_setup_mono(struct voodoofb_softc *sc, int xd, int yd, int width, int height, uint32_t fg,
uint32_t bg)
{
uint32_t dfmt, sfmt = sc->linebytes;
dfmt = sc->linebytes | ((sc->bits_per_pixel +
((sc->bits_per_pixel == 8) ? 0 : 8)) << 13);
voodoo3_make_room(sc, 9);
voodoo3_write32(sc, SRCFORMAT, sfmt);
voodoo3_write32(sc, DSTFORMAT, dfmt);
voodoo3_write32(sc, COLORFORE, fg);
voodoo3_write32(sc, COLORBACK, bg);
voodoo3_write32(sc, DSTSIZE, width | (height << 16));
voodoo3_write32(sc, DSTXY, xd | (yd << 16));
voodoo3_write32(sc, SRCXY, 0);
voodoo3_write32(sc, COMMAND_2D, COMMAND_2D_H2S_BITBLT |
(ROP_COPY << 24) | SST_2D_GO);
/* now feed the data into the chip */
}
static void
voodoofb_feed_line(struct voodoofb_softc *sc, int count, uint8_t *data)
{
int i;
uint32_t latch = 0, bork;
int shift = 0;
voodoo3_make_room(sc, count);
for (i = 0; i < count; i++) {
bork = data[i];
latch |= (bork << shift);
if (shift == 24) {
voodoo3_write32(sc, LAUNCH_2D, latch);
latch = 0;
shift = 0;
} else
shift += 8;
}
if (shift != 24)
voodoo3_write32(sc, LAUNCH_2D, latch);
}
#ifdef VOODOOFB_DEBUG
static void
voodoofb_showpal(struct voodoofb_softc *sc)
{
int i, x = 0;
for (i = 0; i < 16; i++) {
voodoofb_rectfill(sc, x, 0, 64, 64, i);
x += 64;
}
}
#endif
#if 0
static int
voodoofb_allocattr(void *cookie, int fg, int bg, int flags, long *attrp)
{
return 0;
}
#endif
/*
* wsdisplay_accessops
*/
static int
voodoofb_ioctl(void *v, void *vs, u_long cmd, void *data, int flag,
struct lwp *l)
{
struct vcons_data *vd = v;
struct voodoofb_softc *sc = vd->cookie;
struct wsdisplay_fbinfo *wdf;
struct vcons_screen *ms = vd->active;
switch (cmd) {
case WSDISPLAYIO_GTYPE:
*(u_int *)data = WSDISPLAY_TYPE_PCIMISC;
return 0;
case WSDISPLAYIO_GINFO:
wdf = (void *)data;
wdf->height = ms->scr_ri.ri_height;
wdf->width = ms->scr_ri.ri_width;
wdf->depth = ms->scr_ri.ri_depth;
wdf->cmsize = 256;
return 0;
case WSDISPLAYIO_GETCMAP:
return voodoofb_getcmap(sc,
(struct wsdisplay_cmap *)data);
case WSDISPLAYIO_PUTCMAP:
return voodoofb_putcmap(sc,
(struct wsdisplay_cmap *)data);
/* 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));
case WSDISPLAYIO_SMODE:
{
int new_mode = *(int*)data;
if (new_mode != sc->sc_mode)
{
sc->sc_mode = new_mode;
if(new_mode == WSDISPLAYIO_MODE_EMUL)
{
voodoofb_drm_map(sc);
int i;
/* restore the palette */
for (i = 0; i < 256; i++) {
voodoofb_putpalreg(sc,
i,
sc->sc_cmap_red[i],
sc->sc_cmap_green[i],
sc->sc_cmap_blue[i]);
}
vcons_redraw_screen(ms);
} else
voodoofb_drm_unmap(sc);
}
}
return 0;
}
return EPASSTHROUGH;
}
static paddr_t
voodoofb_mmap(void *v, void *vs, off_t offset, int prot)
{
struct vcons_data *vd = v;
struct voodoofb_softc *sc = vd->cookie;
paddr_t pa;
/* 'regular' framebuffer mmap()ing */
if (offset < sc->sc_fbsize) {
pa = bus_space_mmap(sc->sc_fbt, offset, 0, prot,
BUS_SPACE_MAP_LINEAR);
return pa;
}
/*
* restrict all other mappings to processes with superuser privileges
* or the kernel itself
*/
if (curlwp != NULL) {
if (kauth_authorize_generic(kauth_cred_get(),
KAUTH_GENERIC_ISSUSER, NULL) != 0) {
aprint_error_dev(sc->sc_dev, "mmap() rejected.\n");
return -1;
}
}
if ((offset >= sc->sc_fb) && (offset < (sc->sc_fb + sc->sc_fbsize))) {
pa = bus_space_mmap(sc->sc_memt, offset, 0, prot,
BUS_SPACE_MAP_LINEAR);
return pa;
}
if ((offset >= sc->sc_regs) && (offset < (sc->sc_regs +
sc->sc_regsize))) {
pa = bus_space_mmap(sc->sc_memt, offset, 0, prot,
BUS_SPACE_MAP_LINEAR);
return pa;
}
#ifdef PCI_MAGIC_IO_RANGE
/* allow mapping of IO space */
if ((offset >= PCI_MAGIC_IO_RANGE) &&\
(offset < PCI_MAGIC_IO_RANGE + 0x10000)) {
pa = bus_space_mmap(sc->sc_iot, offset - PCI_MAGIC_IO_RANGE,
0, prot, BUS_SPACE_MAP_LINEAR);
return pa;
}
#endif
#ifdef OFB_ALLOW_OTHERS
if (offset >= 0x80000000) {
pa = bus_space_mmap(sc->sc_memt, offset, 0, prot,
BUS_SPACE_MAP_LINEAR);
return pa;
}
#endif
return -1;
}
static void
voodoofb_init_screen(void *cookie, struct vcons_screen *scr,
int existing, long *defattr)
{
struct voodoofb_softc *sc = cookie;
struct rasops_info *ri = &scr->scr_ri;
ri->ri_depth = sc->bits_per_pixel;
ri->ri_width = sc->width;
ri->ri_height = sc->height;
ri->ri_stride = sc->width;
ri->ri_flg = RI_CENTER | RI_FULLCLEAR;
ri->ri_bits = bus_space_vaddr(sc->sc_fbt, sc->sc_fbh);
#ifdef VOODOOFB_DEBUG
printf("addr: %08lx\n", (ulong)ri->ri_bits);
#endif
if (existing) {
ri->ri_flg |= RI_CLEAR;
}
rasops_init(ri, sc->height/8, sc->width/8);
ri->ri_caps = WSSCREEN_WSCOLORS;
rasops_reconfig(ri, sc->height / ri->ri_font->fontheight,
sc->width / ri->ri_font->fontwidth);
ri->ri_hw = scr;
ri->ri_ops.copyrows = voodoofb_copyrows;
ri->ri_ops.copycols = voodoofb_copycols;
ri->ri_ops.eraserows = voodoofb_eraserows;
ri->ri_ops.erasecols = voodoofb_erasecols;
ri->ri_ops.cursor = voodoofb_cursor;
ri->ri_ops.putchar = voodoofb_putchar;
}
#if 0
int
voodoofb_load_font(void *v, void *cookie, struct wsdisplay_font *data)
{
return 0;
}
#endif
#ifdef VOODOOFB_ENABLE_INTR
static int
voodoofb_intr(void *arg)
{
struct voodoofb_softc *sc = arg;
voodoo3_write32(sc, V3_STATUS, 0); /* clear interrupts */
return 1;
}
#endif
/* video mode stuff */
#define REFFREQ 14318 /* .18 */
#define ABS(a) ((a < 0) ? -a : a)
static int
voodoofb_calc_pll(int freq, int *f_out, int isBanshee)
{
int m, n, k, best_m, best_n, best_k, f_cur, best_error;
int minm, maxm;
best_error = freq;
best_n = best_m = best_k = 0;
if (isBanshee) {
minm = 24;
maxm = 24;
} else {
minm = 1;
maxm = 57;
/* This used to be 64, alas it seems the last 8 (funny that ?)
* values cause jittering at lower resolutions. I've not done
* any calculations to what the adjustment affects clock ranges,
* but I can still run at 1600x1200@75Hz */
}
for (n = 1; n < 256; n++) {
f_cur = REFFREQ * (n + 2);
if (f_cur < freq) {
f_cur = f_cur / 3;
if (freq - f_cur < best_error) {
best_error = freq - f_cur;
best_n = n;
best_m = 1;
best_k = 0;
continue;
}
}
for (m = minm; m < maxm; m++) {
for (k = 0; k < 4; k++) {
f_cur = REFFREQ * (n + 2) / (m + 2) / (1 << k);
if (ABS(f_cur - freq) < best_error) {
best_error = ABS(f_cur - freq);
best_n = n;
best_m = m;
best_k = k;
}
}
}
}
n = best_n;
m = best_m;
k = best_k;
*f_out = REFFREQ * (n + 2) / (m + 2) / (1 << k);
return ( n << 8) | (m << 2) | k;
}
static void
voodoofb_setup_monitor(struct voodoofb_softc *sc, const struct videomode *vm)
{
struct voodoo_regs mod;
struct voodoo_regs *mode;
uint32_t horizontal_display_end, horizontal_sync_start,
horizontal_sync_end, horizontal_total,
horizontal_blanking_start, horizontal_blanking_end;
uint32_t vertical_display_enable_end, vertical_sync_start,
vertical_sync_end, vertical_total, vertical_blanking_start,
vertical_blanking_end;
uint32_t wd; // CRTC offset
int i;
uint8_t misc;
memset(&mod, 0, sizeof(mode));
mode = &mod;
wd = (vm->hdisplay >> 3) - 1;
horizontal_display_end = (vm->hdisplay >> 3) - 1;
horizontal_sync_start = (vm->hsync_start >> 3) - 1;
horizontal_sync_end = (vm->hsync_end >> 3) - 1;
horizontal_total = (vm->htotal >> 3) - 1;
horizontal_blanking_start = horizontal_display_end;
horizontal_blanking_end = horizontal_total;
vertical_display_enable_end = vm->vdisplay - 1;
vertical_sync_start = vm->vsync_start; // - 1;
vertical_sync_end = vm->vsync_end; // - 1;
vertical_total = vm->vtotal - 2;
vertical_blanking_start = vertical_display_enable_end;
vertical_blanking_end = vertical_total;
misc = 0x0f |
(vm->hdisplay < 400 ? 0xa0 :
vm->hdisplay < 480 ? 0x60 :
vm->hdisplay < 768 ? 0xe0 : 0x20);
mode->vr_seq[0] = 3;
mode->vr_seq[1] = 1;
mode->vr_seq[2] = 8;
mode->vr_seq[3] = 0;
mode->vr_seq[4] = 6;
/* crtc regs start */
mode->vr_crtc[0] = horizontal_total - 4;
mode->vr_crtc[1] = horizontal_display_end;
mode->vr_crtc[2] = horizontal_blanking_start;
mode->vr_crtc[3] = 0x80 | (horizontal_blanking_end & 0x1f);
mode->vr_crtc[4] = horizontal_sync_start;
mode->vr_crtc[5] = ((horizontal_blanking_end & 0x20) << 2) |
(horizontal_sync_end & 0x1f);
mode->vr_crtc[6] = vertical_total;
mode->vr_crtc[7] = ((vertical_sync_start & 0x200) >> 2) |
((vertical_display_enable_end & 0x200) >> 3) |
((vertical_total & 0x200) >> 4) |
0x10 |
((vertical_blanking_start & 0x100) >> 5) |
((vertical_sync_start & 0x100) >> 6) |
((vertical_display_enable_end & 0x100) >> 7) |
((vertical_total & 0x100) >> 8);
mode->vr_crtc[8] = 0;
mode->vr_crtc[9] = 0x40 |
((vertical_blanking_start & 0x200) >> 4);
mode->vr_crtc[10] = 0;
mode->vr_crtc[11] = 0;
mode->vr_crtc[12] = 0;
mode->vr_crtc[13] = 0;
mode->vr_crtc[14] = 0;
mode->vr_crtc[15] = 0;
mode->vr_crtc[16] = vertical_sync_start;
mode->vr_crtc[17] = (vertical_sync_end & 0x0f) | 0x20;
mode->vr_crtc[18] = vertical_display_enable_end;
mode->vr_crtc[19] = wd; // CRTC offset
mode->vr_crtc[20] = 0;
mode->vr_crtc[21] = vertical_blanking_start;
mode->vr_crtc[22] = vertical_blanking_end + 1;
mode->vr_crtc[23] = 128;
mode->vr_crtc[24] = 255;
/* attr regs start */
mode->vr_attr[0] = 0;
mode->vr_attr[1] = 0;
mode->vr_attr[2] = 0;
mode->vr_attr[3] = 0;
mode->vr_attr[4] = 0;
mode->vr_attr[5] = 0;
mode->vr_attr[6] = 0;
mode->vr_attr[7] = 0;
mode->vr_attr[8] = 0;
mode->vr_attr[9] = 0;
mode->vr_attr[10] = 0;
mode->vr_attr[11] = 0;
mode->vr_attr[12] = 0;
mode->vr_attr[13] = 0;
mode->vr_attr[14] = 0;
mode->vr_attr[15] = 0;
mode->vr_attr[16] = 1;
mode->vr_attr[17] = 0;
mode->vr_attr[18] = 15;
mode->vr_attr[19] = 0;
/* attr regs end */
/* graph regs start */
mode->vr_graph[0] = 159;
mode->vr_graph[1] = 127;
mode->vr_graph[2] = 127;
mode->vr_graph[3] = 131;
mode->vr_graph[4] = 130;
mode->vr_graph[5] = 142;
mode->vr_graph[6] = 30;
mode->vr_graph[7] = 245;
mode->vr_graph[8] = 0;
vga_outb(sc, MISC_W, misc | 0x01);
for(i = 0; i < 5; i++)
voodoo3_write_seq(sc, i, mode->vr_seq[i]);
for (i = 0; i < 0x19; i ++)
voodoo3_write_crtc(sc, i, mode->vr_crtc[i]);
for (i = 0; i < 0x14; i ++)
voodoo3_write_attr(sc, i, mode->vr_attr[i]);
for (i = 0; i < 0x09; i ++)
voodoo3_write_gra(sc, i, mode->vr_graph[i]);
}
static void
voodoofb_set_videomode(struct voodoofb_softc *sc,
const struct videomode *vm)
{
uint32_t miscinit0 = 0;
int vidpll, fout;
uint32_t vp, vidproc = VIDPROCDEFAULT;
uint32_t bpp = 1; /* for now */
uint32_t bytes_per_row = vm->hdisplay * bpp;
sc->bits_per_pixel = bpp << 3;
sc->width = vm->hdisplay;
sc->height = vm->vdisplay;
sc->linebytes = bytes_per_row;
voodoofb_setup_monitor(sc, vm);
vp = voodoo3_read32(sc, VIDPROCCFG);
vidproc &= ~(0x1c0000); /* clear bits 18 to 20, bpp in vidproccfg */
/* enable bits 18 to 20 to the required bpp */
vidproc |= ((bpp - 1) << VIDCFG_PIXFMT_SHIFT);
vidpll = voodoofb_calc_pll(vm->dot_clock, &fout, 0);
#ifdef VOODOOFB_DEBUG
printf("old vidproc: %08x\n", vp);
printf("pll: %08x %d\n", vidpll, fout);
#endif
/* bit 10 of vidproccfg, is enabled or disabled as needed */
switch (bpp) {
case 1:
/*
* bit 10 off for palettized modes only, off means
* palette is used
*/
vidproc &= ~(1 << 10);
break;
#if 0
case 2:
#if __POWERPC__
miscinit0 = 0xc0000000;
#endif
/* bypass palette for 16bit modes */
vidproc |= (1 << 10);
break;
case 4:
#if __POWERPC__
miscinit0 = 0x40000000;
#endif
vidproc |= (1 << 10); /* Same for 32bit modes */
break;
#endif
default:
printf("We support only 8 bit for now\n");
return;
}
voodoofb_wait_idle(sc);
voodoo3_write32(sc, MISCINIT1, voodoo3_read32(sc, MISCINIT1) | 0x01);
voodoo3_make_room(sc, 4);
voodoo3_write32(sc, VGAINIT0, 4928);
voodoo3_write32(sc, DACMODE, 0);
voodoo3_write32(sc, VIDDESKSTRIDE, bytes_per_row);
voodoo3_write32(sc, PLLCTRL0, vidpll);
voodoo3_make_room(sc, 5);
voodoo3_write32(sc, VIDSCREENSIZE, sc->width | (sc->height << 12));
voodoo3_write32(sc, VIDDESKSTART, 1024);
vidproc &= ~VIDCFG_HWCURSOR_ENABLE;
voodoo3_write32(sc, VIDPROCCFG, vidproc);
voodoo3_write32(sc, VGAINIT1, 0);
voodoo3_write32(sc, MISCINIT0, miscinit0);
#ifdef VOODOOFB_DEBUG
printf("vidproc: %08x\n", vidproc);
#endif
voodoo3_make_room(sc, 8);
voodoo3_write32(sc, SRCBASE, 0);
voodoo3_write32(sc, DSTBASE, 0);
voodoo3_write32(sc, COMMANDEXTRA_2D, 0);
voodoo3_write32(sc, CLIP0MIN, 0);
voodoo3_write32(sc, CLIP0MAX, 0x0fff0fff);
voodoo3_write32(sc, CLIP1MIN, 0);
voodoo3_write32(sc, CLIP1MAX, 0x0fff0fff);
voodoo3_write32(sc, SRCXY, 0);
voodoofb_wait_idle(sc);
printf("%s: switched to %dx%d, %d bit\n", device_xname(sc->sc_dev),
sc->width, sc->height, sc->bits_per_pixel);
}
static void
voodoofb_init(struct voodoofb_softc *sc)
{
/* XXX */
uint32_t vgainit0 = 0;
uint32_t vidcfg = 0;
#ifdef VOODOOFB_DEBUG
printf("initializing engine...");
#endif
vgainit0 = voodoo3_read32(sc, VGAINIT0);
#ifdef VOODOOFB_DEBUG
printf("vga: %08x", vgainit0);
#endif
vgainit0 |=
VGAINIT0_8BIT_DAC |
VGAINIT0_EXT_ENABLE |
VGAINIT0_WAKEUP_3C3 |
VGAINIT0_ALT_READBACK |
VGAINIT0_EXTSHIFTOUT;
vidcfg = voodoo3_read32(sc, VIDPROCCFG);
#ifdef VOODOOFB_DEBUG
printf(" vidcfg: %08x\n", vidcfg);
#endif
vidcfg |=
VIDCFG_VIDPROC_ENABLE |
VIDCFG_DESK_ENABLE;
vidcfg &= ~VIDCFG_HWCURSOR_ENABLE;
voodoo3_make_room(sc, 2);
voodoo3_write32(sc, VGAINIT0, vgainit0);
voodoo3_write32(sc, VIDPROCCFG, vidcfg);
voodoo3_make_room(sc, 8);
voodoo3_write32(sc, SRCBASE, 0);
voodoo3_write32(sc, DSTBASE, 0);
voodoo3_write32(sc, COMMANDEXTRA_2D, 0);
voodoo3_write32(sc, CLIP0MIN, 0);
voodoo3_write32(sc, CLIP0MAX, 0x1fff1fff);
voodoo3_write32(sc, CLIP1MIN, 0);
voodoo3_write32(sc, CLIP1MAX, 0x1fff1fff);
voodoo3_write32(sc, SRCXY, 0);
voodoofb_wait_idle(sc);
}