xfnw/plan9fox
1
0
Fork 0
Code Issues Pull requests Projects Releases Wiki Activity

aux/vga: sandybridge support for igfx (unfinished)

Browse source 
as usual, the dude with the hardware vanished so i cannot
develop this further. setting mode worked the last time
but only when using vesa before, so some bits are still
missing. commiting this as it is so i dont have to start
from scratch once we have hardware again.
This commit is contained in:
cinap_lenrek 2015-07-31 23:03:45 +02:00
parent 34e2e047cc
commit 9d59fb28cf
1 changed files with 14 additions and 2 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

16
sys/src/cmd/aux/vga/igfx.c
View file

@ -24,6 +24,7 @@ enum {
enum {
TypeG45,
TypeIVB, /* Ivy Bridge */
TypeSNB, /* Sandy Bridge (unfinished) */
};
enum {
@ -239,6 +240,7 @@ snarftrans(Igfx *igfx, Trans *t, u32int o)
}
break;
case TypeIVB:
case TypeSNB:
t->dm[0] = snarfreg(igfx, o + 0x30);
t->dn[0] = snarfreg(igfx, o + 0x34);
t->dm[1] = snarfreg(igfx, o + 0x38);
@ -264,7 +266,7 @@ snarfpipe(Igfx *igfx, int x)
p->src = snarfreg(igfx, o + 0x0001C);
if(igfx->type == TypeIVB) {
if(igfx->type == TypeIVB || igfx->type == TypeSNB) {
p->fdi->txctl = snarfreg(igfx, o + 0x100);
o = 0xE0000 | x*0x1000;
@ -295,6 +297,7 @@ snarfpipe(Igfx *igfx, int x)
/* cursor plane */
switch(igfx->type){
case TypeIVB:
case TypeSNB:
p->cur->cntr = snarfreg(igfx, 0x70080 + x*0x1000);
p->cur->base = snarfreg(igfx, 0x70084 + x*0x1000);
p->cur->pos = snarfreg(igfx, 0x70088 + x*0x1000);
@ -318,6 +321,8 @@ devtype(Igfx *igfx)
switch(igfx->pci->did){
case 0x0166: /* 3rd Gen Core - ThinkPad X230 */
return TypeIVB;
case 0x0126: /* Thinkpad X220 */
return TypeSNB;
case 0x27a2: /* GM945/82940GML - ThinkPad X60 Tablet */
case 0x2a02: /* GM965/GL960/X3100 - ThinkPad X61 Tablet */
case 0x2a42: /* 4 Series Mobile - ThinkPad X200 */
@ -397,10 +402,16 @@ snarf(Vga* vga, Ctlr* ctlr)
igfx->vgacntrl = snarfreg(igfx, 0x071400);
break;
case TypeSNB:
igfx->npipe = 2; /* A,B */
igfx->cdclk = 300; /* MHz */
goto PCHcommon;
case TypeIVB:
igfx->npipe = 3; /* A,B,C */
igfx->cdclk = 400; /* MHz */
PCHcommon:
igfx->dpll[0].ctrl = snarfreg(igfx, 0xC6014);
igfx->dpll[0].fp0 = snarfreg(igfx, 0xC6040);
igfx->dpll[0].fp1 = snarfreg(igfx, 0xC6044);
@ -434,7 +445,7 @@ snarf(Vga* vga, Ctlr* ctlr)
igfx->dp[x].auxdat[4] = snarfreg(igfx, 0xE4024 + 0x100*x);
}
for(x=0; x<3; x++){
for(x=0; x<igfx->npipe; x++){
igfx->pfit[x].pwrgate = snarfreg(igfx, 0x68060 + 0x800*x);
igfx->pfit[x].winpos = snarfreg(igfx, 0x68070 + 0x800*x);
igfx->pfit[x].winsize = snarfreg(igfx, 0x68074 + 0x800*x);
@ -586,6 +597,7 @@ initdpll(Igfx *igfx, int x, int freq, int port)
dpll->ctrl.v &= ~(3<<13);
dpll->ctrl.v |= (port == PortLCD ? 3 : 0) << 13;
break;
case TypeSNB:
case TypeIVB:
/* transcoder dpll enable */
igfx->dpllsel.v |= 8<<(x*4);