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Viewing changes to src/atimach64io.c

Committer: Package Import Robot
Author(s): Timo Aaltonen
Date: 2016-05-03 14:02:37 UTC
Revision ID: package-import@ubuntu.com-20160503140237-y946gbjc7p6fg9fn

Tags: upstream-6.9.5

Import upstream version 6.9.5

files added:

COPYING

ChangeLog

INSTALL

Makefile.am

Makefile.in

README

aclocal.m4

compile

config.guess

config.h.in

config.sub

configure

configure.ac

depcomp

install-sh

ltmain.sh

man/Makefile.am

man/Makefile.in

missing

src/Makefile.am

src/Makefile.in

src/ati.h

src/atiadjust.c

src/atiadjust.h

src/atiaudio.h

src/atibank.c

src/atibank.h

src/atibus.c

src/atibus.h

src/atichip.c

src/atichip.h

src/aticlock.c

src/aticlock.h

src/aticonfig.c

src/aticonsole.c

src/aticonsole.h

src/aticrtc.h

src/aticursor.h

src/atidac.c

src/atidac.h

src/atidga.c

src/atidga.h

src/atidri.c

src/atidri.h

src/atidripriv.h

src/atidsp.c

src/atidsp.h

src/atii2c.c

src/atii2c.h

src/atiload.c

src/atiload.h

src/atilock.c

src/atilock.h

src/atimach64.c

src/atimach64.h

src/atimach64accel.c

src/atimach64accel.h

src/atimach64cursor.c

src/atimach64exa.c

src/atimach64i2c.c

src/atimach64i2c.h

src/atimach64io.c

src/atimach64io.h

src/atimach64probe.c

src/atimach64probe.h

src/atimach64render.c

src/atimach64version.h

src/atimach64xv.c

src/atimisc.c

src/atimode.c

src/atimode.h

src/atioption.h

src/atipcirename.h

src/atipreinit.c

src/atipreinit.h

src/atiprint.c

src/atiprint.h

src/atipriv.h

src/atiprobe.c

src/atiprobe.h

src/atiregs.h

src/atirgb514.c

src/atirgb514.h

src/atiscreen.c

src/atiscreen.h

src/atistruct.h

src/atituner.c

src/atituner.h

src/atiutil.c

src/atiutil.h

src/ativalid.c

src/ativalid.h

src/ativga.c

src/ativga.h

src/ativgaio.c

src/ativgaio.h

src/atividmem.c

src/atividmem.h

src/atiwonder.c

src/atiwonder.h

src/atiwonderio.c

src/atiwonderio.h

src/atixv.h

src/compat-api.h

src/mach64_common.h

src/mach64_dri.h

src/mach64_sarea.h

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src/atimach64io.c

* Permission to use, copy, modify, distribute, and sell this software and its

* documentation for any purpose is hereby granted without fee, provided that

* the above copyright notice appear in all copies and that both that copyright

* notice and this permission notice appear in supporting documentation, and

* that the name of Marc Aurele La France not be used in advertising or

* publicity pertaining to distribution of the software without specific,

* written prior permission. Marc Aurele La France makes no representations

* about the suitability of this software for any purpose. It is provided

* "as-is" without express or implied warranty.

* MARC AURELE LA FRANCE DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,

* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO

* EVENT SHALL MARC AURELE LA FRANCE BE LIABLE FOR ANY SPECIAL, INDIRECT OR

* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,

* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER

* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR

* PERFORMANCE OF THIS SOFTWARE.

#ifdef HAVE_CONFIG_H

#include "config.h"

#endif

#include "ati.h"

#include "atichip.h"

#include "atimach64io.h"

* ATIMach64AccessPLLReg --

* This function sets up the addressing required to access, for read or write,

* a 264xT's PLL registers.

void

ATIMach64AccessPLLReg

(

ATIPtr pATI,

const CARD8 Index,

const Bool Write

)

{

CARD8 clock_cntl1 = in8(CLOCK_CNTL + 1) &

~GetByte(PLL_WR_EN | PLL_ADDR, 1);

/* Set PLL register to be read or written */

out8(CLOCK_CNTL + 1, clock_cntl1 |

GetByte(SetBits(Index, PLL_ADDR) | SetBits(Write, PLL_WR_EN), 1));

}

* ATIMach64PollEngineStatus --

* This function refreshes the driver's view of the draw engine's status. This

* has been moved into a separate compilation unit to prevent inlining.

void

ATIMach64PollEngineStatus

(

ATIPtr pATI

)

{

CARD32 IOValue;

int Count;

if (pATI->Chip < ATI_CHIP_264VTB)

{

* TODO: Deal with locked engines.

IOValue = inm(FIFO_STAT);

pATI->EngineIsLocked = GetBits(IOValue, FIFO_ERR);

* The following counts the number of bits in FIFO_STAT_BITS, and is

* derived from miSetVisualTypes().

IOValue = GetBits(IOValue, FIFO_STAT_BITS);

Count = (IOValue >> 1) & 0x36DBU;

Count = IOValue - Count - ((Count >> 1) & 0x36DBU);

Count = ((Count + (Count >> 3)) & 0x71C7U) % 0x3FU;

Count = pATI->nFIFOEntries - Count;

if (Count > pATI->nAvailableFIFOEntries)

pATI->nAvailableFIFOEntries = Count;

* If the command FIFO is non-empty, then the engine isn't idle.

if (pATI->nAvailableFIFOEntries < pATI->nFIFOEntries)

{

pATI->EngineIsBusy = TRUE;

return;

}

IOValue = inm(GUI_STAT);

pATI->EngineIsBusy = GetBits(IOValue, GUI_ACTIVE);

100

Count = GetBits(IOValue, GUI_FIFO);

101

if (Count > pATI->nAvailableFIFOEntries)

102

pATI->nAvailableFIFOEntries = Count;

103

}

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