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ATI AC 97 Sounds (SB400) effort

Andras Kenez

By Andras Kenez,
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zelda
zelda
Posted
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Dope, I have commented this:

 

 

// if (config->getDMAEngineID() != ATI_DMA_CAPTURE)

// busySlots |= config->getSlotMap();

return true;

}

 

void CLASS::hwDeactivateConfiguration(IOAC97AudioConfig *config)

 

 

 

and added this:

 

 

// Flush

regs->write(ATI_REG_FIFO_FLUSH, ATI_REG_FIFO_OUT_FLUSH);

// Check for DMA enable, enable if not

data = regs->read(ATI_REG_CMD);

if (!(data & ATI_REG_CMD_OUT_DMA_EN))

 

in method bool CLASS::hwActivateConfiguration(IOAC97AudioConfig *config).

 

Now on my system codec attach problem is resolved and latency issue is almost gone (probably 1-2 sec's this I doubt is caused bu debug statements)

 

 

Tariq

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Andras Kenez
Andras Kenez
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done and done here is compiled Kext and sources.

ATIAudio.zip

 

 

Did not work

 

kld(): Undefined symbols:

__ZN20AppleAC97AudioATIIXP19handleSetPowerStateEPvS0_

kextload: kld_load_from_memory() failed for module /System/Library/Extensions/AppleAC97Audio.kext/Contents/PlugIns/AppleAC97AudioATIIXP.kext/Contents/MacOS/AppleAC97AudioATIIXP

kextload: a link/load error occured for kernel extension AppleAC97AudioATIIXP.kext

load failed for extension AppleAC97AudioATIIXP.kext

(run kextload with -t for diagnostic output)

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thedopefishlives
thedopefishlives
Posted
Posted

I'll go back and remove the power-saving for those who don't want it later today. Tariq: Good work, I'll try that later. I thought that stuff was necessary for 6-channel support, but I don't know, I'm still new to the whole OS X driver architecture and most of this code was copied from Ed and scousi's work, so I don't know what's necessary and what isn't. As for the kernel panic problem, no, that issue has NOT been resolved, I promise you I am still working on it and that it is priority #1 on this project right now. Any ideas would be welcome.

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Brandon2004
Brandon2004
Posted
Posted

I installed the kext from chris2021 and dopefish and neither work I have a compaq laptop with a conexant card any help would be much appreciated...and just to put this out there I have been following this project since the beginning I even have a post on the first page and I would like to say thankyou and congraulation to scousi edflyer and thedopefishlives for all their hardwork because between work and my personal life I barely have enough time to keep my os x installation up to date little long develop a sound card driver so I guess this a thank you...

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alkoholic
alkoholic
Posted
Posted

I got a chance to try out the driver last night. It fires up and I get the volume control, but I don't get any sound. I guess it's the same line-out problem that EdFlyer has. For the record, I have the MSI 1013 laptop, sound PCI ID is 4370. I plugged headphones into both mic and headphone jacks, but still nothing.

 

Thanks for the great work, let me know if I can provide any more info to help.

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Brandon2004
Brandon2004
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This is what I get when I try to load kext with diagnostics.

 

Can't find superclass for 20AppleAC97AudioDriver : 13IOAudioDevice

kextload: a link/load error occured for kernel extension appleac97audioatiixp.kext

load failed for extension appleac97audioatiixp.kext

(run kextload with -t for diagnostic output)

trishas-computer:/Users/trisha/desktop/atiaudio root# kextload -t appleac97audioatiixp.kext

can't add kernel extension appleac97audioatiixp.kext (validation error) (run kextload on this kext with -t for diagnostic output)

kernel extension appleac97audioatiixp.kext has problems:

Validation failures

{

"Kext has a kernel dependency prior to version 6.0 and CFBundleVersion does not match executable's MODULE_VERSION" = true

"Kext has a kernel dependency prior to version 6.0 and CFBundleIdentifier does not match executable's MODULE_NAME" = true

}

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thedopefishlives
thedopefishlives
Posted
Posted

Brandon, what version of OS X are you running?

 

alkoholic, that is indeed a known issue that I have no solution for at present. If I find something amiss, I'll let you know, but Ed will probably be the first to figure that out.

 

I'm currently testing a new build that *may* fix the system lockup problem. I've been running an MP3 stream for 25 minutes now with no problems; if it finishes the full hour, I'll post the new revision.

 

EDIT: Oh, and I'll release it in 2 versions, one with the power-saving code enabled, and one without.

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Meltro
Meltro
Posted
Posted

Minor Request: when posting a kext or source, add a version string? Even if the strings make no logical sense, there are quite a few builds floating around at the moment. Tracking problems across page 14 #3 and page 15 #1 is going to suck.

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thedopefishlives
thedopefishlives
Posted
Posted

I'll tag this next release, thanks.

 

This is what I call "build 1.0.1". I think it should fix the kernel panic problem, I did a long burn-in test on it. I'm unsure as to the status of the following items:

1) 6-channel support. I reread the Linux driver code, and I *think* I understand it, but I also think this driver does that. I'm not sure.

2) Codec attachment problem reported by Tariq. I don't know exactly what could've caused that. Test this build to find out.

3) Power saving. As promised, I'm delivering a version with power saving enabled, and a version without. For those who use the with-power-saving version, make sure it works well for you without too much of a delay.

ATIAppleAC97Audio_1.0.1_withoutpowersaving.tar.bz2.zip

ATIAppleAC97Audio_1.0.1_withpowersaving.tar.bz2.zip

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Brandon2004
Brandon2004
Posted
Posted

dopefish now I have that Error I stated eariler about the invalid version, I don't know what fixed it last time it kinda just started working any help will be greatly appreciated

 

oh...and I am not sure what my device id is I know my card is conexant in windows but I am only running os x is there a way for me to know for sure my device id?

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zelda
zelda
Posted
Posted

My codec problem is solved, but latency issue is back ;-(... I hope kernel issue is fixed

 

Tariq

 

Forgot to tell you that I always get link/load errors with your kext's (I use 10.4.6 JAS DVD)... I compile using ED's package and your ATI source code.

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thedopefishlives
thedopefishlives
Posted
Posted

Odd, especially considering that's exactly what my package is. *shrugs* Post up your version, and all I'll start doing from now on is posting the folder containing the changed source code for you to build into a kext. I have no idea what's so different between us, except perhaps that I used a hand-rolled Maxxuss 10.4.5 DVD with SemJaza's 10.4.6 update added later.

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thedopefishlives
thedopefishlives
Posted
Posted

Heh, sounds like an incompatibility between my build environment and all y'all's :) Sorry about that, folks.

 

About the latency issue: Tariq, I modified that function where you added the flush and I have no idea where you put it. I'll try to add it back in, but I don't know where, can you give me a line number where you added it?

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zelda
zelda
Posted
Posted

It was not flush, but after flush in method ... bool CLASS::hwActivateConfiguration(IOAC97AudioConfig *config)

 

here is a vim cut&paste (line number at the end)

 

// Enable 6 channel re-ordering bit if needed

regs->update(ATI_REG_6CH_REORDER, ATI_REG_6CH_REORDER_EN,

(config->getAudioChannelCount() >= 6 ? ATI_REG_6CH_REORDER_EN : 0));

// Flush

regs->write(ATI_REG_FIFO_FLUSH, ATI_REG_FIFO_OUT_FLUSH);

// Check for DMA enable, enable if not

data = regs->read(ATI_REG_CMD);

if (!(data & ATI_REG_CMD_OUT_DMA_EN))

{

data |= ATI_REG_CMD_OUT_DMA_EN;

regs->write(ATI_REG_CMD, data);

}

break;

 

case ATI_DMA_SPDIF:

break;

}

// if (config->getDMAEngineID() != ATI_DMA_CAPTURE)

// busySlots |= config->getSlotMap();

return true;

}

361,13-20 29%

 

This is the old file you notice I have disabled busySlots| (I also remove case ATI_DMA_SPDIF: stuff , just for testing but the should not have any effect on us mortals ... with 2 speakers ;-) )

 

Regarding building kext, I used old package by Ed Flyers (3rd page I guess ) .. and only added your file in ATIIXP directory. Hope that helps ...

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thedopefishlives
thedopefishlives
Posted
Posted

I'm uploading zips of just the ATIIXP directory for both with and without power saving, if you can compile them for me, please. :) This definitely fixes the latency issue: It was a problem with the startDMAEngine() function. So then, unresolved issues:

* 6-channel audio

* Some chipsets do not have sound

* Why my build system sucks

AppleAC97AudioATIIXP_1.0.2_withoutpowersaving.zip

AppleAC97AudioATIIXP_1.0.2_withpowersaving.zip

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