ref: e969575d2e55eec89d3a2765b974e023123d8fa5
dir: /sys/src/cmd/aux/vga/neomagic.c/
#include <u.h>
#include <libc.h>
#include <bio.h>
#include "pci.h"
#include "vga.h"
typedef struct {
Pcidev* pci;
int x;
int y;
} Neomagic;
enum {
ExtCrtx = 0x19,
MaxCRT=0x85,
MaxGR=0xc7,
};
enum {
GeneralLockReg = 0x0A,
ExtCRTDispAddr = 0x0E,
ExtCRTOffset = 0x0F,
SysIfaceCntl1 = 0x10,
SysIfaceCntl2 = 0x11,
SingleAddrPage = 0x15, /* not changed? */
DualAddrPage = 0x16, /* not changed? */
PanelDispCntlReg1 = 0x20,
PanelDispCntlReg2 = 0x25,
PanelDispCntlReg3 = 0x30,
PanelVertCenterReg1 = 0x28,
PanelVertCenterReg2 = 0x29,
PanelVertCenterReg3 = 0x2A,
PanelVertCenterReg4 = 0x32, /* not 2070 */
PanelHorizCenterReg1 = 0x33,
PanelHorizCenterReg2 = 0x34,
PanelHorizCenterReg3 = 0x35,
PanelHorizCenterReg4 = 0x36, /* 2160, 2200, 2360 */
PanelVertCenterReg5 = 0x37, /* 2200, 2360 */
PanelHorizCenterReg5 = 0x38, /* 2200, 2360 */
ExtColorModeSelect = 0x90,
VerticalExt = 0x70, /* 2200; iobase+4 */
};
static int crts[] = {
0x1D, 0x1F, 0x21, 0x23, 0x25, 0x2F,
/* also 40-59, 60-69, 70-MaxCRT */
-1
};
/*
* Neomagic driver (fake)
*/
static void
snarf(Vga* vga, Ctlr* ctlr)
{
int i;
Pcidev *p;
Neomagic *nm;
generic.snarf(vga, ctlr);
outportw(Grx, 0x2609); /* unlock neo registers */
outportw(Grx, 0x0015); /* reset bank */
for(i=0; crts[i] >= 0; i++)
vga->crt[crts[i]] = vgaxi(Crtx, crts[i]);
for(i=0x40; i <= MaxCRT; i++)
vga->crt[i] = vgaxi(Crtx, i);
for(i=0x08; i<=0x3F; i++)
vga->graphics[i] = vgaxi(Grx, i);
for(i=0x70; i<=MaxGR; i++)
vga->graphics[i] = vgaxi(Grx, i);
if(vga->private == nil){
vga->private = alloc(sizeof(Neomagic));
nm = vga->private;
if((p = pcimatch(0, 0x10C8, 0)) == nil)
error("%s: not found\n", ctlr->name);
switch(p->did){
case 0x0003: /* MagicGraph 128 ZV */
vga->f[1] = 80000000;
vga->vmz = 2048*1024;
vga->apz = 4*1024*1024;
break;
case 0x0083: /* MagicGraph 128 ZV+ */
vga->f[1] = 80000000;
vga->vmz = 2048*1024;
vga->apz = 4*1024*1024;
break;
case 0x0004: /* MagicGraph 128 XD */
vga->f[1] = 90000000;
vga->vmz = 2048*1024;
vga->apz = 16*1024*1024;
break;
case 0x0005: /* MagicMedia 256 AV */
vga->f[1] = 110000000;
vga->vmz = 2560*1024;
vga->apz = 16*1024*1024;
break;
case 0x0006: /* MagicMedia 256 ZX */
vga->f[1] = 110000000;
vga->vmz = 4096*1024;
vga->apz = 16*1024*1024;
break;
case 0x0016: /* MagicMedia 256 XL+ */
vga->f[1] = 110000000;
/* Vaio VESA BIOS says 6080, but then hwgc doesn't work */
vga->vmz = 4096*1024;
vga->apz = 32*1024*1024;
break;
case 0x0001: /* MagicGraph 128 */
case 0x0002: /* MagicGraph 128 V */
default:
error("%s: DID %4.4uX unsupported\n",
ctlr->name, p->did);
}
nm->pci = p;
}
ctlr->flag |= Fsnarf;
}
static void
options(Vga*, Ctlr* ctlr)
{
ctlr->flag |= Ulinear|Hlinear|Foptions;
}
static void
init(Vga* vga, Ctlr* ctlr)
{
Neomagic *nm;
int i, h, v, t;
generic.init(vga, ctlr);
nm = vga->private;
switch((vga->graphics[0x20]>>3)&3){
case 0:
nm->x = 640;
nm->y = 480;
break;
case 1:
nm->x = 800;
nm->y = 600;
break;
case 2:
nm->x = 1024;
nm->y = 768;
case 3:
nm->x = 1280;
nm->y = 1024;
break;
}
vga->crt[0x0C] = 0; /* vga starting address (offset) */
vga->crt[0x0D] = 0;
vga->graphics[GeneralLockReg] = 0x01; /* (internal or simultaneous) */
vga->attribute[0x10] &= ~0x40; /* 2x4 mode not right for neomagic */
t = 2; /* LCD only (0x01 for external) */
switch(vga->mode->x){
case 1280:
t |= 0x60;
break;
case 1024:
t |= 0x40;
break;
case 800:
t |= 0x20;
break;
}
if(0 && (nm->pci->did == 0x0005) || (nm->pci->did == 0x0006)){
vga->graphics[PanelDispCntlReg1] &= 0x98;
vga->graphics[PanelDispCntlReg1] |= (t & ~0x98);
}
else{
vga->graphics[PanelDispCntlReg1] &= 0xDC; /* save bits 7:6, 4:2 */
vga->graphics[PanelDispCntlReg1] |= (t & ~0xDC);
}
vga->graphics[PanelDispCntlReg2] &= 0x38;
vga->graphics[PanelDispCntlReg3] &= 0xEF;
vga->graphics[PanelVertCenterReg1] = 0x00;
vga->graphics[PanelVertCenterReg2] = 0x00;
vga->graphics[PanelVertCenterReg3] = 0x00;
vga->graphics[PanelVertCenterReg4] = 0x00;
vga->graphics[PanelVertCenterReg5] = 0x00;
vga->graphics[PanelHorizCenterReg1] = 0x00;
vga->graphics[PanelHorizCenterReg2] = 0x00;
vga->graphics[PanelHorizCenterReg3] = 0x00;
vga->graphics[PanelHorizCenterReg4] = 0x00;
vga->graphics[PanelHorizCenterReg5] = 0x00;
if(vga->mode->x < nm->x){
vga->graphics[PanelDispCntlReg2] |= 0x01;
vga->graphics[PanelDispCntlReg3] |= 0x10;
h = ((nm->x - vga->mode->x) >> 4) - 1;
v = ((nm->y - vga->mode->y) >> 1) - 2;
switch(vga->mode->x){
case 640:
vga->graphics[PanelHorizCenterReg1] = h;
vga->graphics[PanelVertCenterReg3] = v;
break;
case 800:
vga->graphics[PanelHorizCenterReg2] = h;
vga->graphics[PanelVertCenterReg4] = v;
break;
case 1024:
vga->graphics[PanelHorizCenterReg5] = h;
vga->graphics[PanelVertCenterReg5] = v;
break;
}
}
vga->graphics[ExtCRTDispAddr] = 0x10;
vga->graphics[SysIfaceCntl1] &= 0x0F;
vga->graphics[SysIfaceCntl1] |= 0x30;
vga->graphics[SysIfaceCntl2] = 0x40; /* make sure MMIO is enabled */
vga->graphics[SingleAddrPage] = 0x00;
vga->graphics[DualAddrPage] = 0x00;
vga->graphics[ExtCRTOffset] = 0x00;
t = vga->graphics[ExtColorModeSelect] & 0x70; /* colour mode extension */
if(vga->mode->z == 8){
t |= 0x11;
vga->crt[0x13] = vga->mode->x/8;
vga->graphics[ExtCRTOffset] = vga->mode->x>>11;
vga->graphics[0x05] = 0x00; /* linear addressing? */
vga->crt[0x14] = 0x40; /* double word mode but don't count by 4 */
}
else if(vga->mode->z == 16){
t |= 0x13;
vga->crt[0x13] = vga->mode->x/4;
vga->graphics[0x05] = 0x00; /* linear addressing? */
vga->crt[0x14] = 0x40; /* double word mode but don't count by 4 */
vga->graphics[ExtCRTOffset] = vga->mode->x>>10;
for(i = 0; i < Pcolours; i++){
vga->palette[i][Red] = i<<1;
vga->palette[i][Green] = i;
vga->palette[i][Blue] = i<<1;
}
}
else if(vga->mode->z == 24){
t |= 0x14;
vga->crt[0x13] = (vga->mode->x*3)/8;
// vga->graphics[0x05] = 0x00; /* linear addressing? */
vga->crt[0x14] = 0x40; /* double word mode but don't count by 4 */
vga->graphics[ExtCRTOffset] = (vga->mode->x*3)>>11;
for(i = 0; i < Pcolours; i++){
vga->palette[i][Red] = i;
vga->palette[i][Green] = i;
vga->palette[i][Blue] = i;
}
}
else
error("depth %d not supported\n", vga->mode->z);
vga->graphics[ExtColorModeSelect] = t;
vga->misc |= 0x0C;
ctlr->flag |= Finit;
}
static void
load(Vga* vga, Ctlr* ctlr)
{
vgaxo(Grx, GeneralLockReg, vga->graphics[GeneralLockReg]);
vgaxo(Grx, ExtColorModeSelect, vga->graphics[ExtColorModeSelect]);
vgaxo(Grx, PanelDispCntlReg2, vga->graphics[PanelDispCntlReg2] & 0x39);
sleep(200);
generic.load(vga, ctlr);
vgaxo(Grx, ExtCRTDispAddr, vga->graphics[ExtCRTDispAddr]);
vgaxo(Grx, ExtCRTOffset, vga->graphics[ExtCRTOffset] & 0x39);
vgaxo(Grx, SysIfaceCntl1, vga->graphics[SysIfaceCntl1]);
if(ctlr->flag & Ulinear)
vga->graphics[SysIfaceCntl2] |= 0x80;
vgaxo(Grx, SysIfaceCntl2, vga->graphics[SysIfaceCntl2]);
vgaxo(Grx, SingleAddrPage, vga->graphics[SingleAddrPage]);
vgaxo(Grx, DualAddrPage, vga->graphics[DualAddrPage]);
vgaxo(Grx, PanelDispCntlReg1, vga->graphics[PanelDispCntlReg1]);
vgaxo(Grx, PanelDispCntlReg2, vga->graphics[PanelDispCntlReg2]);
vgaxo(Grx, PanelDispCntlReg3, vga->graphics[PanelDispCntlReg3]);
vgaxo(Grx, PanelVertCenterReg1, vga->graphics[PanelVertCenterReg1]);
vgaxo(Grx, PanelVertCenterReg2, vga->graphics[PanelVertCenterReg2]);
vgaxo(Grx, PanelVertCenterReg3, vga->graphics[PanelVertCenterReg3]);
vgaxo(Grx, PanelVertCenterReg4, vga->graphics[PanelVertCenterReg4]);
vgaxo(Grx, PanelHorizCenterReg1, vga->graphics[PanelHorizCenterReg1]);
vgaxo(Grx, PanelHorizCenterReg2, vga->graphics[PanelHorizCenterReg2]);
vgaxo(Grx, PanelHorizCenterReg3, vga->graphics[PanelHorizCenterReg3]);
vgaxo(Grx, PanelHorizCenterReg4, vga->graphics[PanelHorizCenterReg4]);
vgaxo(Grx, PanelVertCenterReg5, vga->graphics[PanelVertCenterReg5]);
vgaxo(Grx, PanelHorizCenterReg5, vga->graphics[PanelHorizCenterReg5]);
if(vga->mode->z != 8)
palette.load(vga, ctlr);
}
static void
dump(Vga* vga, Ctlr* ctlr)
{
int i;
char buf[100];
generic.dump(vga, ctlr);
for(i = 0; crts[i] >= 0; i++){
sprint(buf, "Crt%2.2uX", crts[i]);
printitem(ctlr->name, buf);
printreg(vga->crt[crts[i]]);
}
printitem(ctlr->name, "Crt40");
for(i=0x40; i<=0x59; i++)
printreg(vga->crt[i]);
printitem(ctlr->name, "Crt60");
for(i=0x60; i<=0x69; i++)
printreg(vga->crt[i]);
printitem(ctlr->name, "Crt70");
for (i = 0x70; i <= MaxCRT; i++)
printreg(vga->crt[i]);
printitem(ctlr->name, "Gr08");
for(i=0x08; i<=0x3F; i++)
printreg(vga->graphics[i]);
printitem(ctlr->name, "Gr70");
for(i=0x70; i<=MaxGR; i++)
printreg(vga->graphics[i]);
}
Ctlr neomagic = {
"neomagic", /* name */
snarf, /* snarf */
options, /* options */
init, /* init */
load, /* load */
dump, /* dump */
};
Ctlr neomagichwgc = {
"neomagichwgc", /* name */
0, /* snarf */
0, /* options */
0, /* init */
0, /* load */
0, /* dump */
};