31285d063e
This patch exports all symbols required by the compilable (in a x86 linux computer) xorg/driver/* modules. Still missing symbols worth mentioning are: sunleo miFindMaxBand no longer available intel (uxa/uxa-accel.c) fbShmPutImage no longer available (and should have been static) mga MGAGetClientPointer (should come from matrox's libhal) This is not a definitive "visibility" patch, as all it does is to export missing symbols, but the modules that current don't compile, may require more symbols once fixed, and third party drivers should also require more symbols exported. A "definitive" patch should export symbols defined in the sdk.
166 lines
4.8 KiB
C
166 lines
4.8 KiB
C
/*
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* Copyright 1998 by Alan Hourihane, Wigan, England.
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*
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* Permission to use, copy, modify, distribute, and sell this software and its
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* documentation for any purpose is hereby granted without fee, provided that
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* the above copyright notice appear in all copies and that both that
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* copyright notice and this permission notice appear in supporting
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* documentation, and that the name of Alan Hourihane not be used in
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* advertising or publicity pertaining to distribution of the software without
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* specific, written prior permission. Alan Hourihane makes no representations
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* about the suitability of this software for any purpose. It is provided
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* "as is" without express or implied warranty.
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*
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* ALAN HOURIHANE DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
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* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
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* EVENT SHALL ALAN HOURIHANE BE LIABLE FOR ANY SPECIAL, INDIRECT OR
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* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
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* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
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* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
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* PERFORMANCE OF THIS SOFTWARE.
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*
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* Authors: Alan Hourihane, <alanh@fairlite.demon.co.uk>
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*
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* BT RAMDAC routines.
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*/
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#ifdef HAVE_XORG_CONFIG_H
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#include <xorg-config.h>
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#endif
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#include "xf86.h"
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#include "xf86_OSproc.h"
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#define INIT_BT_RAMDAC_INFO
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#include "BTPriv.h"
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#include "xf86RamDacPriv.h"
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void
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BTramdacRestore(ScrnInfoPtr pScrn, RamDacRecPtr ramdacPtr,
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RamDacRegRecPtr ramdacReg)
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{
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int i;
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/* Here we pass a short, so that we can evaluate a mask too */
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/* So that the mask is the high byte and the data the low byte */
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/* Just the command/status registers */
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for (i=0x06;i<0x0A;i++)
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(*ramdacPtr->WriteDAC)
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(pScrn, i, (ramdacReg->DacRegs[i] & 0xFF00) >> 8,
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ramdacReg->DacRegs[i]);
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}
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void
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BTramdacSave(ScrnInfoPtr pScrn, RamDacRecPtr ramdacPtr,
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RamDacRegRecPtr ramdacReg)
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{
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int i;
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(*ramdacPtr->ReadAddress)(pScrn, 0); /* Start at index 0 */
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for (i=0;i<768;i++)
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ramdacReg->DAC[i] = (*ramdacPtr->ReadData)(pScrn);
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/* Just the command/status registers */
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for (i=0x06;i<0x0A;i++)
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ramdacReg->DacRegs[i] = (*ramdacPtr->ReadDAC)(pScrn, i);
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}
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_X_EXPORT RamDacHelperRecPtr
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BTramdacProbe(ScrnInfoPtr pScrn, RamDacSupportedInfoRecPtr ramdacs/*, RamDacRecPtr ramdacPtr*/)
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{
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RamDacRecPtr ramdacPtr = RAMDACSCRPTR(pScrn);
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Bool RamDacIsSupported = FALSE;
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RamDacHelperRecPtr ramdacHelperPtr = NULL;
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int BTramdac_ID = -1;
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int i, status, cmd0;
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/* Save COMMAND Register 0 */
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cmd0 = (*ramdacPtr->ReadDAC)(pScrn, BT_COMMAND_REG_0);
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/* Ensure were going to access the STATUS Register on next read */
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(*ramdacPtr->WriteDAC)(pScrn, BT_COMMAND_REG_0, 0x7F, 0x00);
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status = (*ramdacPtr->ReadDAC)(pScrn, BT_STATUS_REG);
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switch (status) {
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case 0x40:
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BTramdac_ID = ATT20C504_RAMDAC;
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break;
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case 0xD0:
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BTramdac_ID = ATT20C505_RAMDAC;
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break;
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default:
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xf86DrvMsg(pScrn->scrnIndex, X_PROBED,
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"Unknown BT RAMDAC type (0x%x), assuming BT485\n",
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status);
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case 0x80:
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case 0x90:
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case 0xA0:
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case 0xB0:
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case 0x28: /* This is for the DEC TGA - Questionable ? */
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BTramdac_ID = BT485_RAMDAC;
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break;
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}
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/* Restore COMMAND Register 0 */
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(*ramdacPtr->WriteDAC)(pScrn, BT_COMMAND_REG_0, 0x00, cmd0);
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if (BTramdac_ID == -1) {
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xf86DrvMsg(pScrn->scrnIndex, X_PROBED,
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"Cannot determine BT RAMDAC type, aborting\n");
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return NULL;
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} else {
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xf86DrvMsg(pScrn->scrnIndex, X_PROBED,
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"Attached RAMDAC is %s\n", BTramdacDeviceInfo[BTramdac_ID&0xFFFF].DeviceName);
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}
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for (i=0;ramdacs[i].token != -1;i++) {
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if (ramdacs[i].token == BTramdac_ID)
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RamDacIsSupported = TRUE;
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}
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if (!RamDacIsSupported) {
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xf86DrvMsg(pScrn->scrnIndex, X_PROBED,
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"This BT RAMDAC is NOT supported by this driver, aborting\n");
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return NULL;
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}
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ramdacHelperPtr = RamDacHelperCreateInfoRec();
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switch(BTramdac_ID) {
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case BT485_RAMDAC:
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ramdacHelperPtr->SetBpp = BTramdacSetBpp;
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break;
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}
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ramdacPtr->RamDacType = BTramdac_ID;
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ramdacHelperPtr->RamDacType = BTramdac_ID;
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ramdacHelperPtr->Save = BTramdacSave;
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ramdacHelperPtr->Restore = BTramdacRestore;
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return ramdacHelperPtr;
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}
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void
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BTramdacSetBpp(ScrnInfoPtr pScrn, RamDacRegRecPtr ramdacReg)
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{
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/* We need to deal with Direct Colour visuals for 8bpp and other
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* good stuff for colours */
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switch (pScrn->bitsPerPixel) {
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case 32:
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ramdacReg->DacRegs[BT_COMMAND_REG_1] = 0x10;
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break;
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case 24:
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ramdacReg->DacRegs[BT_COMMAND_REG_1] = 0x10;
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break;
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case 16:
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ramdacReg->DacRegs[BT_COMMAND_REG_1] = 0x38;
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break;
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case 15:
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ramdacReg->DacRegs[BT_COMMAND_REG_1] = 0x30;
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break;
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case 8:
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ramdacReg->DacRegs[BT_COMMAND_REG_1] = 0x40;
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break;
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case 4:
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ramdacReg->DacRegs[BT_COMMAND_REG_1] = 0x60;
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break;
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}
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}
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