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#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 {
Xrx = 0x3D6, /* Configuration Extensions Index */
};
static uchar
hiqvideoxi(long port, uchar index)
{
uchar data;
outb(port, index);
data = inb(port+1);
return data;
}
static void
hiqvideoxo(long port, uchar index, uchar data)
{
outb(port, index);
outb(port+1, data);
}
static void
hiqvideolinear(VGAscr*, int, int)
{
}
static void
hiqvideoenable(VGAscr* scr)
{
Pcidev *p;
int vmsize;
/*
* Only once, can't be disabled for now.
*/
if(scr->mmio)
return;
if(p = pcimatch(nil, 0x102C, 0)){
switch(p->did){
case 0x00C0: /* 69000 HiQVideo */
vmsize = 2*1024*1024;
break;
case 0x00E0: /* 65550 HiQV32 */
case 0x00E4: /* 65554 HiQV32 */
case 0x00E5: /* 65555 HiQV32 */
switch((hiqvideoxi(Xrx, 0x43)>>1) & 0x03){
default:
case 0:
vmsize = 1*1024*1024;
break;
case 1:
vmsize = 2*1024*1024;
break;
}
break;
default:
return;
}
}
else
return;
scr->pci = p;
vgalinearpci(scr);
if(scr->paddr) {
addvgaseg("hiqvideoscreen", scr->paddr, scr->apsize);
}
/*
* Find a place for the cursor data in display memory.
* Must be on a 4096-byte boundary.
* scr->mmio holds the virtual address of the cursor
* storage area in the framebuffer region.
*/
scr->storage = vmsize-4096;
scr->mmio = (ulong*)((uchar*)scr->vaddr+scr->storage);
}
static void
hiqvideocurdisable(VGAscr*)
{
hiqvideoxo(Xrx, 0xA0, 0x10);
}
static void
hiqvideocurload(VGAscr* scr, Cursor* curs)
{
uchar *p;
int x, y;
/*
* Disable the cursor.
*/
hiqvideocurdisable(scr);
if(scr->mmio == 0)
return;
p = (uchar*)scr->mmio;
for(y = 0; y < 16; y += 2){
*p++ = ~(curs->clr[2*y]|curs->set[2*y]);
*p++ = ~(curs->clr[2*y+1]|curs->set[2*y+1]);
*p++ = 0xFF;
*p++ = 0xFF;
*p++ = ~(curs->clr[2*y+2]|curs->set[2*y+2]);
*p++ = ~(curs->clr[2*y+3]|curs->set[2*y+3]);
*p++ = 0xFF;
*p++ = 0xFF;
*p++ = curs->set[2*y];
*p++ = curs->set[2*y+1];
*p++ = 0x00;
*p++ = 0x00;
*p++ = curs->set[2*y+2];
*p++ = curs->set[2*y+3];
*p++ = 0x00;
*p++ = 0x00;
}
while(y < 32){
for(x = 0; x < 64; x += 8)
*p++ = 0xFF;
for(x = 0; x < 64; x += 8)
*p++ = 0x00;
y += 2;
}
/*
* Save the cursor hotpoint and enable the cursor.
*/
scr->offset = curs->offset;
hiqvideoxo(Xrx, 0xA0, 0x11);
}
static int
hiqvideocurmove(VGAscr* scr, Point p)
{
int x, y;
if(scr->mmio == 0)
return 1;
if((x = p.x+scr->offset.x) < 0)
x = 0x8000|(-x & 0x07FF);
if((y = p.y+scr->offset.y) < 0)
y = 0x8000|(-y & 0x07FF);
hiqvideoxo(Xrx, 0xA4, x & 0xFF);
hiqvideoxo(Xrx, 0xA5, (x>>8) & 0xFF);
hiqvideoxo(Xrx, 0xA6, y & 0xFF);
hiqvideoxo(Xrx, 0xA7, (y>>8) & 0xFF);
return 0;
}
static void
hiqvideocurenable(VGAscr* scr)
{
uchar xr80;
hiqvideoenable(scr);
if(scr->mmio == 0)
return;
/*
* Disable the cursor.
*/
hiqvideocurdisable(scr);
/*
* Cursor colours.
* Can't call setcolor here as cursor is already locked.
* When done make sure the cursor enable in Xr80 is set.
*/
xr80 = hiqvideoxi(Xrx, 0x80);
hiqvideoxo(Xrx, 0x80, xr80|0x01);
vgao(PaddrW, 0x04);
vgao(Pdata, Pwhite);
vgao(Pdata, Pwhite);
vgao(Pdata, Pwhite);
vgao(Pdata, Pblack);
vgao(Pdata, Pblack);
vgao(Pdata, Pblack);
hiqvideoxo(Xrx, 0x80, xr80|0x10);
hiqvideoxo(Xrx, 0xA2, (scr->storage>>12)<<4);
hiqvideoxo(Xrx, 0xA3, (scr->storage>>16) & 0x3F);
/*
* Load, locate and enable the 32x32 cursor.
* Cursor enable in Xr80 better be set already.
*/
hiqvideocurload(scr, &arrow);
hiqvideocurmove(scr, ZP);
hiqvideoxo(Xrx, 0xA0, 0x11);
}
VGAdev vgahiqvideodev = {
"hiqvideo",
hiqvideoenable, /* enable */
nil, /* disable */
nil, /* page */
hiqvideolinear, /* linear */
};
VGAcur vgahiqvideocur = {
"hiqvideohwgc",
hiqvideocurenable, /* enable */
hiqvideocurdisable, /* disable */
hiqvideocurload, /* load */
hiqvideocurmove, /* move */
};
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