1425 lines
37 KiB
C
1425 lines
37 KiB
C
/* $NetBSD: voodoofb.c,v 1.10 2007/06/12 18:16:54 xtraeme 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.
|
|
* 3. The name of the author may not be used to endorse or promote products
|
|
* derived from this software without specific prior written permission.
|
|
*
|
|
* 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 1.10 2007/06/12 18:16:54 xtraeme 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 <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 {
|
|
struct device 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(struct device *, struct cfdata *, void *);
|
|
static void voodoofb_attach(struct device *, struct device *, 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(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(struct device *parent, struct cfdata *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(struct device *parent, struct device *self, void *aux)
|
|
{
|
|
struct voodoofb_softc *sc = (void *)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_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)) {
|
|
printf("%s: failed to map the frame buffer.\n",
|
|
sc->sc_dev.dv_xname);
|
|
}
|
|
|
|
/* 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)) {
|
|
printf("%s: failed to map memory-mapped registers.\n",
|
|
sc->sc_dev.dv_xname);
|
|
}
|
|
|
|
/* 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)) {
|
|
printf("%s: failed to map IO-mapped registers.\n",
|
|
sc->sc_dev.dv_xname);
|
|
}
|
|
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", sc->sc_dev.dv_xname,
|
|
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",
|
|
sc->sc_dev.dv_xname, (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)) {
|
|
printf("%s: failed to map interrupt\n", sc->sc_dev.dv_xname);
|
|
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) {
|
|
printf("%s: failed to establish interrupt",
|
|
sc->sc_dev.dv_xname);
|
|
if (intrstr != NULL)
|
|
printf(" at %s", intrstr);
|
|
printf("\n");
|
|
return;
|
|
}
|
|
printf("%s: interrupting at %s\n", sc->sc_dev.dv_xname, 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("direct rendering for %s", pnp);
|
|
|
|
return UNSUPP;
|
|
}
|
|
|
|
static int
|
|
voodoofb_drm_unmap(struct voodoofb_softc *sc)
|
|
{
|
|
printf("%s: releasing bus resources\n", sc->sc_dev.dv_xname);
|
|
|
|
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)) {
|
|
printf("%s: failed to map the frame buffer.\n",
|
|
sc->sc_dev.dv_xname);
|
|
}
|
|
|
|
/* 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)) {
|
|
printf("%s: failed to map memory-mapped registers.\n",
|
|
sc->sc_dev.dv_xname);
|
|
}
|
|
|
|
/* 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)) {
|
|
printf("%s: failed to map IO-mapped registers.\n",
|
|
sc->sc_dev.dv_xname);
|
|
}
|
|
|
|
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;
|
|
}
|
|
|
|
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;
|
|
}
|
|
|
|
/* allow mapping of IO space */
|
|
if ((offset >= 0xf2000000) && (offset < 0xf2800000)) {
|
|
pa = bus_space_mmap(sc->sc_iot, offset-0xf2000000, 0, prot,
|
|
BUS_SPACE_MAP_LINEAR);
|
|
return pa;
|
|
}
|
|
#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", sc->sc_dev.dv_xname,
|
|
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);
|
|
}
|