<commit_before>/* 
 * Copyright 2007 The Openchrome Project [openchrome.org]
 * Copyright 1998-2007 VIA Technologies, Inc. All Rights Reserved.
 * Copyright 2001-2007 S3 Graphics, Inc. All Rights Reserved.
 *
 * 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, sub license,
 * 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 (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 MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. 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.
 */

/*
 * Integrated LVDS power management functions.
 */

#ifdef HAVE_CONFIG_H
#include "config.h"
#endif

#include "via.h"
#include "via_driver.h"
#include "via_vgahw.h"
#include "via_id.h"


static void
ViaLVDSPowerFirstSequence(ScrnInfoPtr pScrn, Bool on)
{
    vgaHWPtr hwp = VGAHWPTR(pScrn);

    if (on) {
        /* Use hardware control power sequence. */
        hwp->writeCrtc(hwp, 0x91, hwp->readCrtc(hwp, 0x91) & 0xFE);
        /* Turn on back light. */
        hwp->writeCrtc(hwp, 0x91, hwp->readCrtc(hwp, 0x91) & 0x3F);
        /* Turn on hardware power sequence. */
        hwp->writeCrtc(hwp, 0x6A, hwp->readCrtc(hwp, 0x6A) | 0x08);
    } else {
        /* Turn off power sequence. */
        hwp->writeCrtc(hwp, 0x6A, hwp->readCrtc(hwp, 0x6A) & 0xF7);
        usleep(1);
        /* Turn off back light. */
        hwp->writeCrtc(hwp, 0x91, 0xC0);
    }
}

static void
ViaLVDSPowerSecondSequence(ScrnInfoPtr pScrn, Bool on)
{
    vgaHWPtr hwp = VGAHWPTR(pScrn);

    if (on) {
        /* Use hardware control power sequence. */
        hwp->writeCrtc(hwp, 0xD3, hwp->readCrtc(hwp, 0xD3) & 0xFE);
        /* Turn on back light. */
        hwp->writeCrtc(hwp, 0xD3, hwp->readCrtc(hwp, 0xD3) & 0x3F);
        /* Turn on hardware power sequence. */
        hwp->writeCrtc(hwp, 0xD4, hwp->readCrtc(hwp, 0xD4) | 0x02);
    } else {
        /* Turn off power sequence. */
        hwp->writeCrtc(hwp, 0xD4, hwp->readCrtc(hwp, 0xD4) & 0xFD);
        usleep(1);
        /* Turn off back light. */
        hwp->writeCrtc(hwp, 0xD3, 0xC0);
    }
}

static void
ViaLVDSDFPPower(ScrnInfoPtr pScrn, Bool on)
{
    vgaHWPtr hwp = VGAHWPTR(pScrn);

    if (on) {
        /* Turn DFP High/Low pad on. */
        hwp->writeSeq(hwp, 0x2A, hwp->readSeq(hwp, 0x2A) | 0x0F);
    } else {
        /* Turn DFP High/Low pad off. */
        hwp->writeSeq(hwp, 0x2A, hwp->readSeq(hwp, 0x2A) & 0x0F);
    }
}

static void
ViaLVDSPowerChannel(ScrnInfoPtr pScrn, Bool on)
{
    vgaHWPtr hwp = VGAHWPTR(pScrn);
    CARD8 lvdsMask;

    if (on) {
        /* LVDS0: 0x7F, LVDS1: 0xBF */<commit_msg>Fix DFP pad mask<commit_after>/* 
 * Copyright 2007 The Openchrome Project [openchrome.org]
 * Copyright 1998-2007 VIA Technologies, Inc. All Rights Reserved.
 * Copyright 2001-2007 S3 Graphics, Inc. All Rights Reserved.
 *
 * 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, sub license,
 * 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 (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 MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. 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.
 */

/*
 * Integrated LVDS power management functions.
 */

#ifdef HAVE_CONFIG_H
#include "config.h"
#endif

#include "via.h"
#include "via_driver.h"
#include "via_vgahw.h"
#include "via_id.h"


static void
ViaLVDSPowerFirstSequence(ScrnInfoPtr pScrn, Bool on)
{
    vgaHWPtr hwp = VGAHWPTR(pScrn);

    if (on) {
        /* Use hardware control power sequence. */
        hwp->writeCrtc(hwp, 0x91, hwp->readCrtc(hwp, 0x91) & 0xFE);
        /* Turn on back light. */
        hwp->writeCrtc(hwp, 0x91, hwp->readCrtc(hwp, 0x91) & 0x3F);
        /* Turn on hardware power sequence. */
        hwp->writeCrtc(hwp, 0x6A, hwp->readCrtc(hwp, 0x6A) | 0x08);
    } else {
        /* Turn off power sequence. */
        hwp->writeCrtc(hwp, 0x6A, hwp->readCrtc(hwp, 0x6A) & 0xF7);
        usleep(1);
        /* Turn off back light. */
        hwp->writeCrtc(hwp, 0x91, 0xC0);
    }
}

static void
ViaLVDSPowerSecondSequence(ScrnInfoPtr pScrn, Bool on)
{
    vgaHWPtr hwp = VGAHWPTR(pScrn);

    if (on) {
        /* Use hardware control power sequence. */
        hwp->writeCrtc(hwp, 0xD3, hwp->readCrtc(hwp, 0xD3) & 0xFE);
        /* Turn on back light. */
        hwp->writeCrtc(hwp, 0xD3, hwp->readCrtc(hwp, 0xD3) & 0x3F);
        /* Turn on hardware power sequence. */
        hwp->writeCrtc(hwp, 0xD4, hwp->readCrtc(hwp, 0xD4) | 0x02);
    } else {
        /* Turn off power sequence. */
        hwp->writeCrtc(hwp, 0xD4, hwp->readCrtc(hwp, 0xD4) & 0xFD);
        usleep(1);
        /* Turn off back light. */
        hwp->writeCrtc(hwp, 0xD3, 0xC0);
    }
}

static void
ViaLVDSDFPPower(ScrnInfoPtr pScrn, Bool on)
{
    vgaHWPtr hwp = VGAHWPTR(pScrn);

    if (on) {
        /* Turn DFP High/Low pad on. */
        hwp->writeSeq(hwp, 0x2A, hwp->readSeq(hwp, 0x2A) | 0x0F);
    } else {
        /* Turn DFP High/Low pad off. */
        hwp->writeSeq(hwp, 0x2A, hwp->readSeq(hwp, 0x2A) & 0xF0);

    }
}

static void
ViaLVDSPowerChannel(ScrnInfoPtr pScrn, Bool on)
{
    vgaHWPtr hwp = VGAHWPTR(pScrn);
    CARD8 lvdsMask;

    if (on) {
        /* LVDS0: 0x7F, LVDS1: 0xBF */
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