ref: c0cbe87b357a4464a7d10ab8f38a65c77ea3b629
dir: /os/pc/vgavmware.c/
#include "u.h"
#include "../port/lib.h"
#include "mem.h"
#include "dat.h"
#include "fns.h"
#include "io.h"
#include "../port/error.h"
#define Image IMAGE
#include <draw.h>
#include <memdraw.h>
#include <cursor.h>
#include "screen.h"
enum {
PCIVMWARE = 0x15AD, /* PCI VID */
VMWARE1 = 0x0710, /* PCI DID */
VMWARE2 = 0x0405,
};
enum {
Rid = 0,
Renable,
Rwidth,
Rheight,
Rmaxwidth,
Rmaxheight,
Rdepth,
Rbpp,
Rpseudocolor,
Rrmask,
Rgmask,
Rbmask,
Rbpl,
Rfbstart,
Rfboffset,
Rfbmaxsize,
Rfbsize,
Rcap,
Rmemstart,
Rmemsize,
Rconfigdone,
Rsync,
Rbusy,
Rguestid,
Rcursorid,
Rcursorx,
Rcursory,
Rcursoron,
Nreg,
Crectfill = 1<<0,
Crectcopy = 1<<1,
Crectpatfill = 1<<2,
Coffscreen = 1<<3,
Crasterop = 1<<4,
Ccursor = 1<<5,
Ccursorbypass = 1<<6,
Ccursorbypass2 = 1<<7,
C8bitemulation = 1<<8,
Calphacursor = 1<<9,
FifoMin = 0,
FifoMax = 1,
FifoNextCmd = 2,
FifoStop = 3,
FifoUser = 4,
Xupdate = 1,
Xrectfill = 2,
Xrectcopy = 3,
Xdefinebitmap = 4,
Xdefinebitmapscanline = 5,
Xdefinepixmap = 6,
Xdefinepixmapscanline = 7,
Xrectbitmapfill = 8,
Xrectpixmapfill = 9,
Xrectbitmapcopy = 10,
Xrectpixmapcopy = 11,
Xfreeobject = 12,
Xrectropfill = 13,
Xrectropcopy = 14,
Xrectropbitmapfill = 15,
Xrectroppixmapfill = 16,
Xrectropbitmapcopy = 17,
Xrectroppixmapcopy = 18,
Xdefinecursor = 19,
Xdisplaycursor = 20,
Xmovecursor = 21,
Xdefinealphacursor = 22,
Xcmdmax = 23,
CursorOnHide = 0,
CursorOnShow = 1,
CursorOnRemoveFromFb = 2,
CursorOnRestoreToFb = 3,
Rpalette = 1024,
};
typedef struct Vmware Vmware;
struct Vmware {
ulong fb;
ulong ra;
ulong rd;
ulong r[Nreg];
ulong *mmio;
ulong mmiosize;
char chan[32];
int depth;
};
Vmware xvm;
Vmware *vm=&xvm;
static ulong
vmrd(Vmware *vm, int i)
{
outl(vm->ra, i);
return inl(vm->rd);
}
static void
vmwr(Vmware *vm, int i, ulong v)
{
outl(vm->ra, i);
outl(vm->rd, v);
}
static void
vmwait(Vmware *vm)
{
vmwr(vm, Rsync, 1);
while(vmrd(vm, Rbusy))
;
}
static ulong
vmwarelinear(VGAscr* scr, int* size, int* align)
{
char err[64];
ulong aperture, oaperture;
int osize, oapsize, wasupamem;
Pcidev *p;
osize = *size;
oaperture = scr->aperture;
oapsize = scr->apsize;
wasupamem = scr->isupamem;
p = pcimatch(nil, PCIVMWARE, 0);
if(p == nil)
error("no vmware card found");
switch(p->did){
default:
snprint(err, sizeof err, "unknown vmware id %.4ux", p->did);
error(err);
case VMWARE1:
vm->ra = 0x4560;
vm->rd = 0x4560+4;
break;
case VMWARE2:
vm->ra = p->mem[0].bar&~3;
vm->rd = vm->ra + 1;
}
aperture = (ulong)(vmrd(vm, Rfbstart));
*size = vmrd(vm, Rfbsize);
if(wasupamem)
upafree(oaperture, oapsize);
scr->isupamem = 0;
aperture = upamalloc(aperture, *size, *align);
if(aperture == 0){
if(wasupamem && upamalloc(oaperture, oapsize, 0))
scr->isupamem = 1;
}else
scr->isupamem = 1;
if(oaperture && aperture != oaperture)
print("warning (BUG): redefinition of aperture does not change vmwarescreen segment\n");
addvgaseg("vmwarescreen", aperture, osize);
return aperture;
}
static void
vmfifowr(Vmware *vm, ulong v)
{
ulong *mm;
mm = vm->mmio;
if(mm == nil){
iprint("!");
return;
}
if(mm[FifoNextCmd]+sizeof(ulong) == mm[FifoStop]
|| (mm[FifoNextCmd]+sizeof(ulong) == mm[FifoMax]
&& mm[FifoStop] == mm[FifoMin]))
vmwait(vm);
mm[mm[FifoNextCmd]/sizeof(ulong)] = v;
/* must do this way so mm[FifoNextCmd] is never mm[FifoMax] */
v = mm[FifoNextCmd] + sizeof(ulong);
if(v == mm[FifoMax])
v = mm[FifoMin];
mm[FifoNextCmd] = v;
}
static void
vmwareflush(VGAscr*, Rectangle r)
{
if(vm->mmio == nil)
return;
vmfifowr(vm, Xupdate);
vmfifowr(vm, r.min.x);
vmfifowr(vm, r.min.y);
vmfifowr(vm, r.max.x-r.min.x);
vmfifowr(vm, r.max.y-r.min.y);
vmwait(vm);
}
static void
vmwareload(VGAscr*, Cursor *c)
{
int i;
ulong clr, set;
ulong and[16];
ulong xor[16];
if(vm->mmio == nil)
return;
vmfifowr(vm, Xdefinecursor);
vmfifowr(vm, 1); /* cursor id */
vmfifowr(vm, -c->offset.x);
vmfifowr(vm, -c->offset.y);
vmfifowr(vm, 16); /* width */
vmfifowr(vm, 16); /* height */
vmfifowr(vm, 1); /* depth for and mask */
vmfifowr(vm, 1); /* depth for xor mask */
for(i=0; i<16; i++){
clr = (c->clr[i*2+1]<<8) | c->clr[i*2];
set = (c->set[i*2+1]<<8) | c->set[i*2];
and[i] = ~(clr|set); /* clr and set pixels => black */
xor[i] = clr&~set; /* clr pixels => white */
}
for(i=0; i<16; i++)
vmfifowr(vm, and[i]);
for(i=0; i<16; i++)
vmfifowr(vm, xor[i]);
vmwait(vm);
}
static int
vmwaremove(VGAscr*, Point p)
{
vmwr(vm, Rcursorid, 1);
vmwr(vm, Rcursorx, p.x);
vmwr(vm, Rcursory, p.y);
vmwr(vm, Rcursoron, CursorOnShow);
return 0;
}
static void
vmwaredisable(VGAscr*)
{
vmwr(vm, Rcursorid, 1);
vmwr(vm, Rcursoron, CursorOnHide);
}
static void
vmwareenable(VGAscr*)
{
vmwr(vm, Rcursorid, 1);
vmwr(vm, Rcursoron, CursorOnShow);
}
static void
vmwareblank(int)
{
}
static int
vmwarescroll(VGAscr*, Rectangle r, Rectangle sr)
{
if(vm->mmio == nil)
return 0;
vmfifowr(vm, Xrectcopy);
vmfifowr(vm, sr.min.x);
vmfifowr(vm, sr.min.y);
vmfifowr(vm, r.min.x);
vmfifowr(vm, r.min.y);
vmfifowr(vm, Dx(r));
vmfifowr(vm, Dy(r));
vmwait(vm);
return 1;
}
static int
vmwarefill(VGAscr*, Rectangle r, ulong sval)
{
if(vm->mmio == nil)
return 0;
vmfifowr(vm, Xrectfill);
vmfifowr(vm, sval);
vmfifowr(vm, r.min.x);
vmfifowr(vm, r.min.y);
vmfifowr(vm, r.max.x-r.min.x);
vmfifowr(vm, r.max.y-r.min.y);
vmwait(vm);
return 1;
}
static void
vmwaredrawinit(VGAscr *scr)
{
ulong offset;
ulong mmiobase, mmiosize;
if(scr->mmio==nil){
mmiobase = vmrd(vm, Rmemstart);
if(mmiobase == 0)
return;
mmiosize = vmrd(vm, Rmemsize);
scr->mmio = KADDR(upamalloc(mmiobase, mmiosize, 0));
vm->mmio = scr->mmio;
vm->mmiosize = mmiosize;
if(scr->mmio == nil)
return;
addvgaseg("vmwaremmio", mmiobase, mmiosize);
}
scr->mmio[FifoMin] = 4*sizeof(ulong);
scr->mmio[FifoMax] = vm->mmiosize;
scr->mmio[FifoNextCmd] = 4*sizeof(ulong);
scr->mmio[FifoStop] = 4*sizeof(ulong);
vmwr(vm, Rconfigdone, 1);
scr->scroll = vmwarescroll;
scr->fill = vmwarefill;
offset = vmrd(vm, Rfboffset);
scr->gscreendata->bdata += offset;
}
VGAdev vgavmwaredev = {
"vmware",
0,
0,
0,
vmwarelinear,
vmwaredrawinit,
0,
0,
0,
vmwareflush,
};
VGAcur vgavmwarecur = {
"vmwarehwgc",
vmwareenable,
vmwaredisable,
vmwareload,
vmwaremove,
};