aboutsummaryrefslogtreecommitdiff
path: root/xorg-server/hw/xfree86/ramdac/BT.c
diff options
context:
space:
mode:
Diffstat (limited to 'xorg-server/hw/xfree86/ramdac/BT.c')
-rw-r--r--xorg-server/hw/xfree86/ramdac/BT.c158
1 files changed, 80 insertions, 78 deletions
diff --git a/xorg-server/hw/xfree86/ramdac/BT.c b/xorg-server/hw/xfree86/ramdac/BT.c
index 5aa27a1f8..533344513 100644
--- a/xorg-server/hw/xfree86/ramdac/BT.c
+++ b/xorg-server/hw/xfree86/ramdac/BT.c
@@ -37,36 +37,37 @@
void
BTramdacRestore(ScrnInfoPtr pScrn, RamDacRecPtr ramdacPtr,
- RamDacRegRecPtr ramdacReg)
+ RamDacRegRecPtr ramdacReg)
{
- int i;
-
- /* Here we pass a short, so that we can evaluate a mask too */
- /* So that the mask is the high byte and the data the low byte */
- /* Just the command/status registers */
- for (i=0x06;i<0x0A;i++)
- (*ramdacPtr->WriteDAC)
- (pScrn, i, (ramdacReg->DacRegs[i] & 0xFF00) >> 8,
- ramdacReg->DacRegs[i]);
+ int i;
+
+ /* Here we pass a short, so that we can evaluate a mask too */
+ /* So that the mask is the high byte and the data the low byte */
+ /* Just the command/status registers */
+ for (i = 0x06; i < 0x0A; i++)
+ (*ramdacPtr->WriteDAC)
+ (pScrn, i, (ramdacReg->DacRegs[i] & 0xFF00) >> 8,
+ ramdacReg->DacRegs[i]);
}
void
-BTramdacSave(ScrnInfoPtr pScrn, RamDacRecPtr ramdacPtr,
- RamDacRegRecPtr ramdacReg)
+BTramdacSave(ScrnInfoPtr pScrn, RamDacRecPtr ramdacPtr,
+ RamDacRegRecPtr ramdacReg)
{
- int i;
-
- (*ramdacPtr->ReadAddress)(pScrn, 0); /* Start at index 0 */
- for (i=0;i<768;i++)
- ramdacReg->DAC[i] = (*ramdacPtr->ReadData)(pScrn);
-
- /* Just the command/status registers */
- for (i=0x06;i<0x0A;i++)
- ramdacReg->DacRegs[i] = (*ramdacPtr->ReadDAC)(pScrn, i);
+ int i;
+
+ (*ramdacPtr->ReadAddress) (pScrn, 0); /* Start at index 0 */
+ for (i = 0; i < 768; i++)
+ ramdacReg->DAC[i] = (*ramdacPtr->ReadData) (pScrn);
+
+ /* Just the command/status registers */
+ for (i = 0x06; i < 0x0A; i++)
+ ramdacReg->DacRegs[i] = (*ramdacPtr->ReadDAC) (pScrn, i);
}
RamDacHelperRecPtr
-BTramdacProbe(ScrnInfoPtr pScrn, RamDacSupportedInfoRecPtr ramdacs/*, RamDacRecPtr ramdacPtr*/)
+BTramdacProbe(ScrnInfoPtr pScrn,
+ RamDacSupportedInfoRecPtr ramdacs /*, RamDacRecPtr ramdacPtr */ )
{
RamDacRecPtr ramdacPtr = RAMDACSCRPTR(pScrn);
Bool RamDacIsSupported = FALSE;
@@ -75,65 +76,66 @@ BTramdacProbe(ScrnInfoPtr pScrn, RamDacSupportedInfoRecPtr ramdacs/*, RamDacRecP
int i, status, cmd0;
/* Save COMMAND Register 0 */
- cmd0 = (*ramdacPtr->ReadDAC)(pScrn, BT_COMMAND_REG_0);
+ cmd0 = (*ramdacPtr->ReadDAC) (pScrn, BT_COMMAND_REG_0);
/* Ensure were going to access the STATUS Register on next read */
- (*ramdacPtr->WriteDAC)(pScrn, BT_COMMAND_REG_0, 0x7F, 0x00);
+ (*ramdacPtr->WriteDAC) (pScrn, BT_COMMAND_REG_0, 0x7F, 0x00);
- status = (*ramdacPtr->ReadDAC)(pScrn, BT_STATUS_REG);
+ status = (*ramdacPtr->ReadDAC) (pScrn, BT_STATUS_REG);
switch (status) {
- case 0x40:
- BTramdac_ID = ATT20C504_RAMDAC;
- break;
- case 0xD0:
- BTramdac_ID = ATT20C505_RAMDAC;
- break;
- default:
- xf86DrvMsg(pScrn->scrnIndex, X_PROBED,
- "Unknown BT RAMDAC type (0x%x), assuming BT485\n",
- status);
- case 0x80:
- case 0x90:
- case 0xA0:
- case 0xB0:
- case 0x28: /* This is for the DEC TGA - Questionable ? */
- BTramdac_ID = BT485_RAMDAC;
- break;
+ case 0x40:
+ BTramdac_ID = ATT20C504_RAMDAC;
+ break;
+ case 0xD0:
+ BTramdac_ID = ATT20C505_RAMDAC;
+ break;
+ default:
+ xf86DrvMsg(pScrn->scrnIndex, X_PROBED,
+ "Unknown BT RAMDAC type (0x%x), assuming BT485\n", status);
+ case 0x80:
+ case 0x90:
+ case 0xA0:
+ case 0xB0:
+ case 0x28: /* This is for the DEC TGA - Questionable ? */
+ BTramdac_ID = BT485_RAMDAC;
+ break;
}
/* Restore COMMAND Register 0 */
- (*ramdacPtr->WriteDAC)(pScrn, BT_COMMAND_REG_0, 0x00, cmd0);
+ (*ramdacPtr->WriteDAC) (pScrn, BT_COMMAND_REG_0, 0x00, cmd0);
if (BTramdac_ID == -1) {
- xf86DrvMsg(pScrn->scrnIndex, X_PROBED,
- "Cannot determine BT RAMDAC type, aborting\n");
- return NULL;
- } else {
- xf86DrvMsg(pScrn->scrnIndex, X_PROBED,
- "Attached RAMDAC is %s\n", BTramdacDeviceInfo[BTramdac_ID&0xFFFF].DeviceName);
+ xf86DrvMsg(pScrn->scrnIndex, X_PROBED,
+ "Cannot determine BT RAMDAC type, aborting\n");
+ return NULL;
+ }
+ else {
+ xf86DrvMsg(pScrn->scrnIndex, X_PROBED,
+ "Attached RAMDAC is %s\n",
+ BTramdacDeviceInfo[BTramdac_ID & 0xFFFF].DeviceName);
}
- for (i=0;ramdacs[i].token != -1;i++) {
- if (ramdacs[i].token == BTramdac_ID)
- RamDacIsSupported = TRUE;
+ for (i = 0; ramdacs[i].token != -1; i++) {
+ if (ramdacs[i].token == BTramdac_ID)
+ RamDacIsSupported = TRUE;
}
if (!RamDacIsSupported) {
- xf86DrvMsg(pScrn->scrnIndex, X_PROBED,
- "This BT RAMDAC is NOT supported by this driver, aborting\n");
- return NULL;
+ xf86DrvMsg(pScrn->scrnIndex, X_PROBED,
+ "This BT RAMDAC is NOT supported by this driver, aborting\n");
+ return NULL;
}
ramdacHelperPtr = RamDacHelperCreateInfoRec();
- switch(BTramdac_ID) {
- case BT485_RAMDAC:
- ramdacHelperPtr->SetBpp = BTramdacSetBpp;
- break;
+ switch (BTramdac_ID) {
+ case BT485_RAMDAC:
+ ramdacHelperPtr->SetBpp = BTramdacSetBpp;
+ break;
}
ramdacPtr->RamDacType = BTramdac_ID;
ramdacHelperPtr->RamDacType = BTramdac_ID;
ramdacHelperPtr->Save = BTramdacSave;
ramdacHelperPtr->Restore = BTramdacRestore;
-
+
return ramdacHelperPtr;
}
@@ -143,23 +145,23 @@ BTramdacSetBpp(ScrnInfoPtr pScrn, RamDacRegRecPtr ramdacReg)
/* We need to deal with Direct Colour visuals for 8bpp and other
* good stuff for colours */
switch (pScrn->bitsPerPixel) {
- case 32:
- ramdacReg->DacRegs[BT_COMMAND_REG_1] = 0x10;
- break;
- case 24:
- ramdacReg->DacRegs[BT_COMMAND_REG_1] = 0x10;
- break;
- case 16:
- ramdacReg->DacRegs[BT_COMMAND_REG_1] = 0x38;
- break;
- case 15:
- ramdacReg->DacRegs[BT_COMMAND_REG_1] = 0x30;
- break;
- case 8:
- ramdacReg->DacRegs[BT_COMMAND_REG_1] = 0x40;
- break;
- case 4:
- ramdacReg->DacRegs[BT_COMMAND_REG_1] = 0x60;
- break;
+ case 32:
+ ramdacReg->DacRegs[BT_COMMAND_REG_1] = 0x10;
+ break;
+ case 24:
+ ramdacReg->DacRegs[BT_COMMAND_REG_1] = 0x10;
+ break;
+ case 16:
+ ramdacReg->DacRegs[BT_COMMAND_REG_1] = 0x38;
+ break;
+ case 15:
+ ramdacReg->DacRegs[BT_COMMAND_REG_1] = 0x30;
+ break;
+ case 8:
+ ramdacReg->DacRegs[BT_COMMAND_REG_1] = 0x40;
+ break;
+ case 4:
+ ramdacReg->DacRegs[BT_COMMAND_REG_1] = 0x60;
+ break;
}
}