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Add VBE PanelID support.

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Originally found only in the i810 driver.
This commit is contained in:
Adam Jackson 2007-06-27 09:19:28 -04:00
parent d73835efda
commit bf1ad1aa42
2 changed files with 86 additions and 0 deletions
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70
hw/xfree86/vbe/vbe.c
View File

@ -1074,3 +1074,73 @@ VBEDPMSSet(vbeInfoPtr pVbe, int mode)
return (R16(pVbe->pInt10->ax) == 0x4f);
}
void
VBEInterpretPanelID(int scrnIndex, struct vbePanelID *data)
{
ScrnInfoPtr pScrn = xf86Screens[scrnIndex];
DisplayModePtr mode;
const float PANEL_HZ = 60.0;
if (!data)
return;
xf86DrvMsg(scrnIndex, X_INFO, "PanelID returned panel resolution %dx%d\n",
data->hsize, data->vsize);
if (pScrn->monitor->nHsync || pScrn->monitor->nVrefresh)
return;
mode = xf86CVTMode(data->hsize, data->vsize, PANEL_HZ, 1, 0);
pScrn->monitor->nHsync = 1;
pScrn->monitor->hsync[0].lo = 31.5;
pScrn->monitor->hsync[0].hi = (float)mode->Clock / (float)mode->HTotal;
pScrn->monitor->nVrefresh = 1;
pScrn->monitor->vrefresh[0].lo = 56.0;
pScrn->monitor->vrefresh[0].hi =
(float)mode->Clock*1000.0 / (float)mode->HTotal / (float)mode->VTotal;
xfree(mode);
}
struct vbePanelID *
VBEReadPanelID(vbeInfoPtr pVbe)
{
int RealOff = pVbe->real_mode_base;
pointer page = pVbe->memory;
unsigned char *tmp = NULL;
int screen = pVbe->pInt10->scrnIndex;
pVbe->pInt10->ax = 0x4F11;
pVbe->pInt10->bx = 0x01;
pVbe->pInt10->cx = 0;
pVbe->pInt10->dx = 0;
pVbe->pInt10->es = SEG_ADDR(RealOff);
pVbe->pInt10->di = SEG_OFF(RealOff);
pVbe->pInt10->num = 0x10;
xf86ExecX86int10(pVbe->pInt10);
if ((pVbe->pInt10->ax & 0xff) != 0x4f) {
xf86DrvMsgVerb(screen,X_INFO,3,"VESA VBE PanelID invalid\n");
goto error;
}
switch (pVbe->pInt10->ax & 0xff00) {
case 0x0:
xf86DrvMsgVerb(screen,X_INFO,3,"VESA VBE PanelID read successfully\n");
tmp = (unsigned char *)xnfalloc(32);
memcpy(tmp,page,32);
break;
case 0x100:
xf86DrvMsgVerb(screen,X_INFO,3,"VESA VBE PanelID read failed\n");
break;
default:
xf86DrvMsgVerb(screen,X_INFO,3,"VESA VBE PanelID unknown failure %i\n",
pVbe->pInt10->ax & 0xff00);
break;
}
error:
return tmp;
}

16
hw/xfree86/vbe/vbe.h
View File

@ -328,4 +328,20 @@ VBEVesaSaveRestore(vbeInfoPtr pVbe, vbeSaveRestorePtr vbe_sr,
int VBEGetPixelClock(vbeInfoPtr pVbe, int mode, int Clock);
Bool VBEDPMSSet(vbeInfoPtr pVbe, int mode);
struct vbePanelID {
short hsize;
short vsize;
short fptype;
char redbpp;
char greenbpp;
char bluebpp;
char reservedbpp;
int reserved_offscreen_mem_size;
int reserved_offscreen_mem_pointer;
char reserved[14];
};
void VBEInterpretPanelID(int scrnIndex, struct vbePanelID *data);
struct vbePanelID *VBEReadPanelID(vbeInfoPtr pVbe);
#endif