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/*
* Copyright (c) 2007 NVIDIA, Corporation
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <unistd.h>
#include "g80_type.h"
#include "g80_display.h"
#include "g80_output.h"
static void
G80DacSetPClk(xf86OutputPtr output, int pclk)
{
G80Ptr pNv = G80PTR(output->scrn);
G80OutputPrivPtr pPriv = output->driver_private;
const int orOff = 0x800 * pPriv->or;
pNv->reg[(0x00614280+orOff)/4] = 0;
}
static void
G80DacDPMSSet(xf86OutputPtr output, int mode)
{
ErrorF("DAC dpms unimplemented\n");
}
static void
G80DacModeSet(xf86OutputPtr output, DisplayModePtr mode,
DisplayModePtr adjusted_mode)
{
ScrnInfoPtr pScrn = output->scrn;
G80OutputPrivPtr pPriv = output->driver_private;
const int dacOff = 0x80 * pPriv->or;
if(adjusted_mode)
ErrorF("DAC%i mode %s -> HEAD%i\n", pPriv->or, adjusted_mode->name, G80CrtcGetHead(output->crtc));
if(!adjusted_mode) {
C(0x00000400 + dacOff, 0);
return;
}
C(0x00000400 + dacOff,
(G80CrtcGetHead(output->crtc) == HEAD0 ? 1 : 2) | 0x40);
C(0x00000404 + dacOff,
(adjusted_mode->Flags & V_NHSYNC) ? 1 : 0 |
(adjusted_mode->Flags & V_NVSYNC) ? 2 : 0);
}
/*
* Perform DAC load detection to determine if there is a connected display.
*/
static xf86OutputStatus
G80DacDetect(xf86OutputPtr output)
{
G80OutputPrivPtr pPriv = output->driver_private;
/* Assume physical status isn't going to change before the BlockHandler */
if(pPriv->cached_status != XF86OutputStatusUnknown)
return pPriv->cached_status;
G80OutputPartnersDetect(output, pPriv->partner, pPriv->i2c);
return pPriv->cached_status;
}
Bool
G80DacLoadDetect(xf86OutputPtr output)
{
ScrnInfoPtr pScrn = output->scrn;
G80Ptr pNv = G80PTR(pScrn);
G80OutputPrivPtr pPriv = output->driver_private;
const int scrnIndex = pScrn->scrnIndex;
const int dacOff = 2048 * pPriv->or;
CARD32 load, tmp;
xf86DrvMsg(scrnIndex, X_PROBED, "Trying load detection on VGA%i ... ",
pPriv->or);
pNv->reg[(0x0061A010+dacOff)/4] = 0x00000001;
pNv->reg[(0x0061A004+dacOff)/4] = 0x80150000;
while(pNv->reg[(0x0061A004+dacOff)/4] & 0x80000000);
tmp = pNv->architecture == 0x50 ? 420 : 340;
pNv->reg[(0x0061A00C+dacOff)/4] = tmp | 0x100000;
usleep(4500);
load = pNv->reg[(0x0061A00C+dacOff)/4];
pNv->reg[(0x0061A00C+dacOff)/4] = 0;
pNv->reg[(0x0061A004+dacOff)/4] = 0x80550000;
// Use this DAC if all three channels show load.
if((load & 0x38000000) == 0x38000000) {
xf86ErrorF("found one!\n");
return TRUE;
}
xf86ErrorF("nothing.\n");
return FALSE;
}
static void
G80DacDestroy(xf86OutputPtr output)
{
G80OutputDestroy(output);
xfree(output->driver_private);
output->driver_private = NULL;
}
static const xf86OutputFuncsRec G80DacOutputFuncs = {
.dpms = G80DacDPMSSet,
.save = NULL,
.restore = NULL,
.mode_valid = G80OutputModeValid,
.mode_fixup = G80OutputModeFixup,
.prepare = G80OutputPrepare,
.commit = G80OutputCommit,
.mode_set = G80DacModeSet,
.detect = G80DacDetect,
.get_modes = G80OutputGetDDCModes,
.destroy = G80DacDestroy,
};
xf86OutputPtr
G80CreateDac(ScrnInfoPtr pScrn, ORNum or)
{
G80OutputPrivPtr pPriv = xnfcalloc(sizeof(*pPriv), 1);
xf86OutputPtr output;
char orName[5];
if(!pPriv)
return FALSE;
snprintf(orName, 5, "VGA%i", or);
output = xf86OutputCreate(pScrn, &G80DacOutputFuncs, orName);
pPriv->type = DAC;
pPriv->or = or;
pPriv->cached_status = XF86OutputStatusUnknown;
pPriv->set_pclk = G80DacSetPClk;
output->driver_private = pPriv;
output->interlaceAllowed = TRUE;
output->doubleScanAllowed = TRUE;
return output;
}
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