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/* $OpenBSD: gfxp.c,v 1.16 2022/07/15 17:57:26 kettenis Exp $ */
/*
* Copyright (c) 2009 Mark Kettenis.
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <sys/param.h>
#include <sys/device.h>
#include <sys/pciio.h>
#include <sys/systm.h>
#include <machine/autoconf.h>
#include <machine/bus.h>
#include <machine/openfirm.h>
#include <dev/pci/pcireg.h>
#include <dev/pci/pcivar.h>
#include <dev/pci/pcidevs.h>
#include <dev/wscons/wsconsio.h>
#include <dev/wscons/wsdisplayvar.h>
#include <dev/rasops/rasops.h>
#include <machine/fbvar.h>
/*
* The Permedia 2 provides two views into its 64k register file. The
* first view is little-endian, the second is big-endian and
* immediately follows the little-endian view. Since bus_space(9)
* already does the byte order conversion for us, we use the
* little-endian view.
*
* There are also little-endian and big-endian views into the
* framebuffer. These are made available through separate BARs. We
* use the big-endian view in this driver to avoid unnecessary byte
* swapping in rasops(9).
*/
#define PM2_PCI_MMIO 0x10 /* Registers */
#define PM2_PCI_MEM_LE 0x14 /* Framebuffer (little-endian) */
#define PM2_PCI_MEM_BE 0x18 /* Framebuffer (big-endian) */
#define PM2_IN_FIFO_SPACE 0x0018
#define PM2_OUT_FIFO_SPACE 0x0020
#define PM2_DMA_COUNT 0x0030
#define PM2_OUT_FIFO 0x2000
#define PM2_SYNC_TAG 0x00000188
#define PM2_PALETTE_WRITE_ADDR 0x4000
#define PM2_PALETTE_DATA 0x4008
#define PM2V_INDEX_LOW 0x4020
#define PM2V_INDEX_HIGH 0x4028
#define PM2V_INDEX_DATA 0x4030
#define PM2V_CURSOR_MODE 0x0005
#define PM2V_CURSOR_PATTERN 0x0400
#define PM2_RENDER 0x8038
#define PM2_RENDER_FASTFILL 0x00000008
#define PM2_RENDER_RECT 0x000000c0
#define PM2_INCREASE_X 0x00200000
#define PM2_INCREASE_Y 0x00400000
#define PM2_RECT_ORIG 0x80d0
#define PM2_RECT_SIZE 0x80d8
#define PM2_FB_READ_MODE 0x8a80
#define PM2_FB_BLOCK_COLOR 0x8ac8
#define PM2_FB_READ_PIXEL 0x8ad0
#define PM2_FILTER_MODE 0x8c00
#define PM2_FM_PASS_SYNC_TAG 0x00000400
#define PM2_SYNC 0x8c40
#define PM2_FB_SRC_DELTA 0x8d88
#define PM2_CONFIG 0x8d90
#define PM2_CONFIG_FB_READ_SRC_EN 0x00000001
#define PM2_CONFIG_FB_WRITE_EN 0x00000008
#define PM2_COORDS(x, y) ((y) << 16 | (x))
#ifdef APERTURE
extern int allowaperture;
#endif
struct gfxp_softc {
struct sunfb sc_sunfb;
bus_space_tag_t sc_memt;
bus_space_handle_t sc_memh;
bus_addr_t sc_membase_le;
bus_size_t sc_memsize_le;
bus_addr_t sc_membase_be;
bus_size_t sc_memsize_be;
bus_space_tag_t sc_mmiot;
bus_space_handle_t sc_mmioh;
bus_addr_t sc_mmiobase;
bus_size_t sc_mmiosize;
pcitag_t sc_pcitag;
int sc_mode;
u_int8_t sc_cmap_red[256];
u_int8_t sc_cmap_green[256];
u_int8_t sc_cmap_blue[256];
/* Saved state to clean up after X11. */
uint32_t sc_read_mode;
uint32_t sc_read_pixel;
};
int gfxp_ioctl(void *, u_long, caddr_t, int, struct proc *);
paddr_t gfxp_mmap(void *, off_t, int);
struct wsdisplay_accessops gfxp_accessops = {
.ioctl = gfxp_ioctl,
.mmap = gfxp_mmap
};
int gfxp_match(struct device *, void *, void *);
void gfxp_attach(struct device *, struct device *, void *);
const struct cfattach gfxp_ca = {
sizeof(struct gfxp_softc), gfxp_match, gfxp_attach
};
struct cfdriver gfxp_cd = {
NULL, "gfxp", DV_DULL
};
int gfxp_is_console(int);
int gfxp_getcmap(struct gfxp_softc *, struct wsdisplay_cmap *);
int gfxp_putcmap(struct gfxp_softc *, struct wsdisplay_cmap *);
void gfxp_setcolor(void *, u_int, u_int8_t, u_int8_t, u_int8_t);
int gfxp_copycols(void *, int, int, int, int);
int gfxp_erasecols(void *, int, int, int, uint32_t);
int gfxp_copyrows(void *, int, int, int);
int gfxp_eraserows(void *, int, int, uint32_t);
void gfxp_init(struct gfxp_softc *);
void gfxp_reinit(struct gfxp_softc *);
void gfxp_indexed_write(struct gfxp_softc *, bus_size_t, uint32_t);
int gfxp_wait(struct gfxp_softc *);
int gfxp_wait_fifo(struct gfxp_softc *, int);
void gfxp_copyrect(struct gfxp_softc *, int, int, int, int, int, int);
void gfxp_fillrect(struct gfxp_softc *, int, int, int, int, int);
int
gfxp_match(struct device *parent, void *cf, void *aux)
{
struct pci_attach_args *pa = aux;
int node;
char *name;
node = PCITAG_NODE(pa->pa_tag);
name = getpropstring(node, "name");
if (strcmp(name, "TECH-SOURCE,gfxp") == 0 ||
strcmp(name, "TSI,gfxp") == 0)
return (10);
return (0);
}
void
gfxp_attach(struct device *parent, struct device *self, void *aux)
{
struct gfxp_softc *sc = (struct gfxp_softc *)self;
struct pci_attach_args *pa = aux;
struct rasops_info *ri;
int node, console, flags;
char *model;
sc->sc_pcitag = pa->pa_tag;
node = PCITAG_NODE(pa->pa_tag);
console = gfxp_is_console(node);
printf("\n");
model = getpropstring(node, "model");
printf("%s: %s", self->dv_xname, model);
if (pci_mapreg_info(pa->pa_pc, pa->pa_tag, PM2_PCI_MEM_LE,
PCI_MAPREG_TYPE_MEM, &sc->sc_membase_le, &sc->sc_memsize_le, NULL))
sc->sc_memsize_le = 0;
if (pci_mapreg_map(pa, PM2_PCI_MEM_BE, PCI_MAPREG_TYPE_MEM,
BUS_SPACE_MAP_LINEAR, &sc->sc_memt, &sc->sc_memh,
&sc->sc_membase_be, &sc->sc_memsize_be, 0)) {
printf("\n%s: can't map video memory\n", self->dv_xname);
return;
}
if (pci_mapreg_map(pa, PM2_PCI_MMIO, PCI_MAPREG_TYPE_MEM, 0,
&sc->sc_mmiot, &sc->sc_mmioh, &sc->sc_mmiobase,
&sc->sc_mmiosize, 0)) {
bus_space_unmap(sc->sc_memt, sc->sc_memh, sc->sc_memsize_be);
printf("\n%s: can't map mmio\n", self->dv_xname);
return;
}
fb_setsize(&sc->sc_sunfb, 8, 1152, 900, node, 0);
printf(", %dx%d\n", sc->sc_sunfb.sf_width, sc->sc_sunfb.sf_height);
ri = &sc->sc_sunfb.sf_ro;
ri->ri_bits = bus_space_vaddr(sc->sc_memt, sc->sc_memh);
ri->ri_hw = sc;
flags = RI_BSWAP;
if (sc->sc_sunfb.sf_depth == 32) {
ri->ri_rnum = 8;
ri->ri_rpos = 16;
ri->ri_gnum = 8;
ri->ri_gpos = 8;
ri->ri_bnum = 8;
ri->ri_bpos = 0;
flags &= ~RI_BSWAP;
}
fbwscons_init(&sc->sc_sunfb, flags, console);
fbwscons_setcolormap(&sc->sc_sunfb, gfxp_setcolor);
sc->sc_mode = WSDISPLAYIO_MODE_EMUL;
gfxp_init(sc);
ri->ri_ops.copyrows = gfxp_copyrows;
ri->ri_ops.copycols = gfxp_copycols;
ri->ri_ops.eraserows = gfxp_eraserows;
ri->ri_ops.erasecols = gfxp_erasecols;
if (console)
fbwscons_console_init(&sc->sc_sunfb, -1);
fbwscons_attach(&sc->sc_sunfb, &gfxp_accessops, console);
}
int
gfxp_ioctl(void *v, u_long cmd, caddr_t data, int flags, struct proc *p)
{
struct gfxp_softc *sc = v;
struct wsdisplay_fbinfo *wdf;
struct pcisel *sel;
switch (cmd) {
case WSDISPLAYIO_GTYPE:
*(u_int *)data = WSDISPLAY_TYPE_GFXP;
break;
case WSDISPLAYIO_SMODE:
sc->sc_mode = *(u_int *)data;
if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL) {
fbwscons_setcolormap(&sc->sc_sunfb, gfxp_setcolor);
/* Clean up the mess left behind by X. */
gfxp_reinit(sc);
}
break;
case WSDISPLAYIO_GINFO:
wdf = (void *)data;
wdf->height = sc->sc_sunfb.sf_height;
wdf->width = sc->sc_sunfb.sf_width;
wdf->depth = sc->sc_sunfb.sf_depth;
wdf->stride = sc->sc_sunfb.sf_linebytes;
wdf->offset = 0;
if (sc->sc_sunfb.sf_depth == 32)
wdf->cmsize = 0;
else
wdf->cmsize = 256;
break;
case WSDISPLAYIO_GETSUPPORTEDDEPTH:
if (sc->sc_sunfb.sf_depth == 32)
*(u_int *)data = WSDISPLAYIO_DEPTH_24_32;
else
return (-1);
break;
case WSDISPLAYIO_LINEBYTES:
*(u_int *)data = sc->sc_sunfb.sf_linebytes;
break;
case WSDISPLAYIO_GETCMAP:
return gfxp_getcmap(sc, (struct wsdisplay_cmap *)data);
case WSDISPLAYIO_PUTCMAP:
return gfxp_putcmap(sc, (struct wsdisplay_cmap *)data);
case WSDISPLAYIO_GPCIID:
sel = (struct pcisel *)data;
sel->pc_bus = PCITAG_BUS(sc->sc_pcitag);
sel->pc_dev = PCITAG_DEV(sc->sc_pcitag);
sel->pc_func = PCITAG_FUN(sc->sc_pcitag);
break;
case WSDISPLAYIO_SVIDEO:
case WSDISPLAYIO_GVIDEO:
break;
case WSDISPLAYIO_GCURPOS:
case WSDISPLAYIO_SCURPOS:
case WSDISPLAYIO_GCURMAX:
case WSDISPLAYIO_GCURSOR:
case WSDISPLAYIO_SCURSOR:
default:
return -1; /* not supported yet */
}
return (0);
}
paddr_t
gfxp_mmap(void *v, off_t off, int prot)
{
struct gfxp_softc *sc = v;
if (off & PGOFSET)
return (-1);
switch (sc->sc_mode) {
case WSDISPLAYIO_MODE_MAPPED:
#ifdef APERTURE
if (allowaperture == 0)
return (-1);
#endif
if (sc->sc_mmiosize == 0)
return (-1);
if (off >= sc->sc_membase_be &&
off < (sc->sc_membase_be + sc->sc_memsize_be))
return (bus_space_mmap(sc->sc_memt,
sc->sc_membase_be, off - sc->sc_membase_be,
prot, BUS_SPACE_MAP_LINEAR));
if (off >= sc->sc_mmiobase &&
off < (sc->sc_mmiobase + sc->sc_mmiosize))
return (bus_space_mmap(sc->sc_mmiot,
sc->sc_mmiobase, off - sc->sc_mmiobase,
prot, BUS_SPACE_MAP_LINEAR));
break;
case WSDISPLAYIO_MODE_DUMBFB:
if (off >= 0 && off < sc->sc_memsize_le)
return (bus_space_mmap(sc->sc_memt, sc->sc_membase_le,
off, prot, BUS_SPACE_MAP_LINEAR));
break;
}
return (-1);
}
int
gfxp_is_console(int node)
{
extern int fbnode;
return (fbnode == node);
}
int
gfxp_getcmap(struct gfxp_softc *sc, struct wsdisplay_cmap *cm)
{
u_int index = cm->index;
u_int count = cm->count;
int error;
if (index >= 256 || count > 256 - index)
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);
}
int
gfxp_putcmap(struct gfxp_softc *sc, struct wsdisplay_cmap *cm)
{
u_int index = cm->index;
u_int count = cm->count;
u_int i;
int error;
u_char *r, *g, *b;
if (index >= 256 || count > 256 - index)
return (EINVAL);
if ((error = copyin(cm->red, &sc->sc_cmap_red[index], count)) != 0)
return (error);
if ((error = copyin(cm->green, &sc->sc_cmap_green[index], count)) != 0)
return (error);
if ((error = copyin(cm->blue, &sc->sc_cmap_blue[index], count)) != 0)
return (error);
r = &sc->sc_cmap_red[index];
g = &sc->sc_cmap_green[index];
b = &sc->sc_cmap_blue[index];
gfxp_wait_fifo(sc, 1);
bus_space_write_4(sc->sc_mmiot, sc->sc_mmioh,
PM2_PALETTE_WRITE_ADDR, index);
for (i = 0; i < count; i++) {
gfxp_wait_fifo(sc, 3);
bus_space_write_4(sc->sc_mmiot, sc->sc_mmioh,
PM2_PALETTE_DATA, *r);
bus_space_write_4(sc->sc_mmiot, sc->sc_mmioh,
PM2_PALETTE_DATA, *g);
bus_space_write_4(sc->sc_mmiot, sc->sc_mmioh,
PM2_PALETTE_DATA, *b);
r++, g++, b++;
}
return (0);
}
void
gfxp_setcolor(void *v, u_int index, u_int8_t r, u_int8_t g, u_int8_t b)
{
struct gfxp_softc *sc = v;
sc->sc_cmap_red[index] = r;
sc->sc_cmap_green[index] = g;
sc->sc_cmap_blue[index] = b;
gfxp_wait_fifo(sc, 4);
bus_space_write_4(sc->sc_mmiot, sc->sc_mmioh,
PM2_PALETTE_WRITE_ADDR, index);
bus_space_write_4(sc->sc_mmiot, sc->sc_mmioh, PM2_PALETTE_DATA, r);
bus_space_write_4(sc->sc_mmiot, sc->sc_mmioh, PM2_PALETTE_DATA, g);
bus_space_write_4(sc->sc_mmiot, sc->sc_mmioh, PM2_PALETTE_DATA, b);
}
/*
* Accelerated routines.
*/
int
gfxp_copycols(void *cookie, int row, int src, int dst, int num)
{
struct rasops_info *ri = cookie;
struct gfxp_softc *sc = ri->ri_hw;
num *= ri->ri_font->fontwidth;
src *= ri->ri_font->fontwidth;
dst *= ri->ri_font->fontwidth;
row *= ri->ri_font->fontheight;
gfxp_copyrect(sc, ri->ri_xorigin + src, ri->ri_yorigin + row,
ri->ri_xorigin + dst, ri->ri_yorigin + row,
num, ri->ri_font->fontheight);
return 0;
}
int
gfxp_erasecols(void *cookie, int row, int col, int num, uint32_t attr)
{
struct rasops_info *ri = cookie;
struct gfxp_softc *sc = ri->ri_hw;
int bg, fg;
ri->ri_ops.unpack_attr(cookie, attr, &fg, &bg, NULL);
row *= ri->ri_font->fontheight;
col *= ri->ri_font->fontwidth;
num *= ri->ri_font->fontwidth;
gfxp_fillrect(sc, ri->ri_xorigin + col, ri->ri_yorigin + row,
num, ri->ri_font->fontheight, ri->ri_devcmap[bg]);
return 0;
}
int
gfxp_copyrows(void *cookie, int src, int dst, int num)
{
struct rasops_info *ri = cookie;
struct gfxp_softc *sc = ri->ri_hw;
num *= ri->ri_font->fontheight;
src *= ri->ri_font->fontheight;
dst *= ri->ri_font->fontheight;
gfxp_copyrect(sc, ri->ri_xorigin, ri->ri_yorigin + src,
ri->ri_xorigin, ri->ri_yorigin + dst, ri->ri_emuwidth, num);
return 0;
}
int
gfxp_eraserows(void *cookie, int row, int num, uint32_t attr)
{
struct rasops_info *ri = cookie;
struct gfxp_softc *sc = ri->ri_hw;
int bg, fg;
int x, y, w;
ri->ri_ops.unpack_attr(cookie, attr, &fg, &bg, NULL);
if ((num == ri->ri_rows) && ISSET(ri->ri_flg, RI_FULLCLEAR)) {
num = ri->ri_height;
x = y = 0;
w = ri->ri_width;
} else {
num *= ri->ri_font->fontheight;
x = ri->ri_xorigin;
y = ri->ri_yorigin + row * ri->ri_font->fontheight;
w = ri->ri_emuwidth;
}
gfxp_fillrect(sc, x, y, w, num, ri->ri_devcmap[bg]);
return 0;
}
void
gfxp_init(struct gfxp_softc *sc)
{
/* XXX Save. */
sc->sc_read_mode = bus_space_read_4(sc->sc_mmiot, sc->sc_mmioh,
PM2_FB_READ_MODE);
sc->sc_read_pixel = bus_space_read_4(sc->sc_mmiot, sc->sc_mmioh,
PM2_FB_READ_PIXEL);
}
void
gfxp_reinit(struct gfxp_softc *sc)
{
struct rasops_info *ri = &sc->sc_sunfb.sf_ro;
int i;
/* XXX Restore. */
bus_space_write_4(sc->sc_mmiot, sc->sc_mmioh,
PM2_FB_READ_MODE, sc->sc_read_mode);
bus_space_write_4(sc->sc_mmiot, sc->sc_mmioh,
PM2_FB_READ_PIXEL, sc->sc_read_pixel);
/* Disable cursor. */
gfxp_indexed_write(sc, PM2V_CURSOR_MODE, 0x10);
/* Clear cursor image. */
for (i = 0; i < 1024; i++)
gfxp_indexed_write(sc, PM2V_CURSOR_PATTERN + i, 0x00);
/* Clear screen. */
gfxp_fillrect(sc, 0, 0, ri->ri_width, ri->ri_height,
ri->ri_devcmap[WSCOL_WHITE]);
}
void
gfxp_indexed_write(struct gfxp_softc *sc, bus_size_t offset, uint32_t value)
{
gfxp_wait_fifo(sc, 3);
bus_space_write_4(sc->sc_mmiot, sc->sc_mmioh,
PM2V_INDEX_HIGH, offset >> 8);
bus_space_write_4(sc->sc_mmiot, sc->sc_mmioh,
PM2V_INDEX_LOW, offset & 0xff);
bus_space_write_4(sc->sc_mmiot, sc->sc_mmioh, PM2V_INDEX_DATA, value);
}
int
gfxp_wait_fifo(struct gfxp_softc *sc, int n)
{
int i;
for (i = 1000000; i != 0; i--) {
if (bus_space_read_4(sc->sc_mmiot, sc->sc_mmioh,
PM2_IN_FIFO_SPACE) >= n)
break;
DELAY(1);
}
return i;
}
int
gfxp_wait(struct gfxp_softc *sc)
{
int i;
for (i = 1000000; i != 0; i--) {
if (bus_space_read_4(sc->sc_mmiot, sc->sc_mmioh,
PM2_DMA_COUNT) == 0)
break;
DELAY(1);
}
/*
* Insert a sync into the FIFO...
*/
gfxp_wait_fifo(sc, 2);
bus_space_write_4(sc->sc_mmiot, sc->sc_mmioh,
PM2_FILTER_MODE, PM2_FM_PASS_SYNC_TAG);
bus_space_write_4(sc->sc_mmiot, sc->sc_mmioh, PM2_SYNC, 0);
/*
* ...and wait for it to appear on the other end, indicating
* completion of the operations before it.
*/
for (i = 1000000; i != 0; i--) {
if (bus_space_read_4(sc->sc_mmiot, sc->sc_mmioh,
PM2_OUT_FIFO_SPACE) > 0 &&
bus_space_read_4(sc->sc_mmiot, sc->sc_mmioh,
PM2_OUT_FIFO) == PM2_SYNC_TAG)
break;
DELAY(1);
}
return i;
}
void
gfxp_copyrect(struct gfxp_softc *sc, int sx, int sy, int dx, int dy,
int w, int h)
{
int dir = 0;
if (sx > dx)
dir |= PM2_INCREASE_X;
if (sy > dy)
dir |= PM2_INCREASE_Y;
gfxp_wait_fifo(sc, 5);
bus_space_write_4(sc->sc_mmiot, sc->sc_mmioh, PM2_CONFIG,
PM2_CONFIG_FB_WRITE_EN | PM2_CONFIG_FB_READ_SRC_EN);
bus_space_write_4(sc->sc_mmiot, sc->sc_mmioh, PM2_FB_SRC_DELTA,
PM2_COORDS((sx - dx) & 0xffff, (sy - dy) & 0xffff));
bus_space_write_4(sc->sc_mmiot, sc->sc_mmioh, PM2_RECT_ORIG,
PM2_COORDS(dx, dy));
bus_space_write_4(sc->sc_mmiot, sc->sc_mmioh, PM2_RECT_SIZE,
PM2_COORDS(w, h));
bus_space_write_4(sc->sc_mmiot, sc->sc_mmioh, PM2_RENDER,
PM2_RENDER_RECT | dir);
gfxp_wait(sc);
}
void
gfxp_fillrect(struct gfxp_softc *sc, int x, int y, int w, int h, int color)
{
gfxp_wait_fifo(sc, 5);
bus_space_write_4(sc->sc_mmiot, sc->sc_mmioh, PM2_CONFIG,
PM2_CONFIG_FB_WRITE_EN);
bus_space_write_4(sc->sc_mmiot, sc->sc_mmioh, PM2_RECT_ORIG,
PM2_COORDS(x, y));
bus_space_write_4(sc->sc_mmiot, sc->sc_mmioh, PM2_RECT_SIZE,
PM2_COORDS(w, h));
bus_space_write_4(sc->sc_mmiot, sc->sc_mmioh, PM2_FB_BLOCK_COLOR,
color);
bus_space_write_4(sc->sc_mmiot, sc->sc_mmioh, PM2_RENDER,
PM2_RENDER_RECT | PM2_RENDER_FASTFILL);
gfxp_wait(sc);
}
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