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/*
* Copyright 2007 Tilman Sauerbeck
*
* 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
* on the rights to use, copy, modify, merge, publish, distribute, sub
* license, and/or sell copies of the Software, and to permit persons to whom
* them Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) 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 MERCHANTIBILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS 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.
*
* Authors:
* Tilman Sauerbeck <tilman@code-monkey.de>
*
* Sources:
* xf86-video-intel
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include "xf86.h"
#include "xf86i2c.h"
#include "xf86Crtc.h"
#include "mga_reg.h"
#include "mga.h"
#define MGAOUTPUTDATAPTR(p) ((MgaOutputDataPtr) ((p)->driver_private))
typedef struct {
I2CBusPtr ddc_bus;
} MgaOutputDataRec, *MgaOutputDataPtr;
static void output_dpms(xf86OutputPtr output, int mode);
static int output_mode_valid(xf86OutputPtr output, DisplayModePtr mode);
static int output_mode_fixup(xf86OutputPtr output, DisplayModePtr mode,
DisplayModePtr adjusted_mode);
static void output_prepare(xf86OutputPtr output);
static void output_mode_set(xf86OutputPtr output, DisplayModePtr mode,
DisplayModePtr adjusted_mode);
static void output_commit(xf86OutputPtr output);
static xf86OutputStatus output_detect(xf86OutputPtr output);
static DisplayModePtr output_get_modes(xf86OutputPtr output);
static void output_destroy(xf86OutputPtr output);
static const xf86OutputFuncsRec output_funcs = {
.dpms = output_dpms,
.mode_valid = output_mode_valid,
.mode_fixup = output_mode_fixup,
.prepare = output_prepare,
.mode_set = output_mode_set,
.commit = output_commit,
.detect = output_detect,
.get_modes = output_get_modes,
.destroy = output_destroy
};
static void
output_dpms(xf86OutputPtr output, int mode)
{
/* FIXME
*
* Prefer an implementation that doesn't depend on VGA specifics.
*/
MGAPtr pMga = MGAPTR(output->scrn);
CARD8 seq1, crtcext1;
OUTREG8(MGAREG_SEQ_INDEX, 0x01); /* Select SEQ1 */
OUTREG8(MGAREG_CRTCEXT_INDEX, 0x01); /* Select CRTCEXT1 */
seq1 = INREG8(MGAREG_SEQ_DATA);
seq1 &= ~MGAREG_SEQ1_SCREEN_OFF;
crtcext1 = INREG8(MGAREG_CRTCEXT_DATA);
crtcext1 &= ~MGAREG_CRTCEXT1_HSYNC_OFF;
crtcext1 &= ~MGAREG_CRTCEXT1_VSYNC_OFF;
switch (mode) {
case DPMSModeOn:
/* nothing to do */
break;
case DPMSModeStandby:
seq1 |= MGAREG_SEQ1_SCREEN_OFF;
crtcext1 = MGAREG_CRTCEXT1_HSYNC_OFF;
break;
case DPMSModeSuspend:
seq1 |= MGAREG_SEQ1_SCREEN_OFF;
crtcext1 |= MGAREG_CRTCEXT1_VSYNC_OFF;
break;
case DPMSModeOff:
seq1 |= MGAREG_SEQ1_SCREEN_OFF;
crtcext1 |= MGAREG_CRTCEXT1_HSYNC_OFF;
crtcext1 |= MGAREG_CRTCEXT1_VSYNC_OFF;
break;
}
OUTREG8(MGAREG_SEQ_DATA, seq1);
OUTREG8(MGAREG_CRTCEXT_DATA, crtcext1);
}
static int
output_mode_valid(xf86OutputPtr output, DisplayModePtr mode)
{
return MODE_OK;
}
static int
output_mode_fixup(xf86OutputPtr output, DisplayModePtr mode,
DisplayModePtr pAdjustedMode)
{
return TRUE;
}
static void
output_prepare(xf86OutputPtr output)
{
}
static void
output_mode_set(xf86OutputPtr output, DisplayModePtr mode,
DisplayModePtr adjusted_mode)
{
}
static void
output_commit(xf86OutputPtr output)
{
}
static xf86OutputStatus
output_detect(xf86OutputPtr output)
{
MgaOutputDataPtr data = MGAOUTPUTDATAPTR(output);
/* 0xa0 is DDC EEPROM address */
if (xf86I2CProbeAddress(data->ddc_bus, 0xa0))
return XF86OutputStatusConnected;
else
return XF86OutputStatusUnknown;
}
static DisplayModePtr
output_get_modes(xf86OutputPtr output)
{
MgaOutputDataPtr data = MGAOUTPUTDATAPTR(output);
xf86MonPtr mon;
mon = xf86OutputGetEDID(output, data->ddc_bus);
xf86OutputSetEDID(output, mon);
return xf86OutputGetEDIDModes(output);
}
static void
output_destroy(xf86OutputPtr output)
{
if (output->driver_private)
xfree(output->driver_private);
}
xf86OutputPtr
Mga2064OutputInit(ScrnInfoPtr scrn)
{
MGAPtr pMga = MGAPTR(scrn);
xf86OutputPtr output;
MgaOutputDataPtr data;
data = xnfcalloc(sizeof(MgaOutputDataRec), 1);
if (!data)
return NULL;
output = xf86OutputCreate(scrn, &output_funcs, "VGA");
if (!output) {
xfree(data);
return NULL;
}
output->driver_private = data;
data->ddc_bus = pMga->DDC_Bus1;
return output;
}
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