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[alsa-devel] Recent code changes for HD-audio on HG repo
by Claude Michel 13 Aug '07

13 Aug '07

Hi, I have done come test of the new suspend/resume capabilities. However suspend failed to correctly work on my laptop (dell d630). You must note that there is a few trouble issues with sound on this laptop: the snd_hda_intel driver correctly detect a STAC9205 and get the default pin configuration from the bios. So far, so good ... however, pin B is by default configured as line out and is working as such. But, it does not correctly work with an external microphone as it need a vref. So, instead of using the bios settings, I use the windows default settings. This is not perfectly working : I usually get some glinches that disappear after a logout/login procedure. Nothing significant appears from a diff between /proc/asound/card0/codec0 before and after this procedure ... Now let talk about the suspend failure. The suspend procedure (which was previously working) produce a bug (I was not able to catch the message at this stage. This is a partial and hand written report ..): Bug: unable to handle kernel NULL Pointer deferred at virtual address 0000 .... Call trace ... <f9546d24> hda_set_power_state+0x34/0x150 [snd_hda_intel] <f9547768> hda_call_code_suspend+0x39/0x60 [snd_hda_intel] <f955477b7> snd_hda_suspend+0x27/0x50 [snd_hda_intel]<f954603c> azx_suspend+0x60/0xd0 [snd_hda_intel] <c023b29ac> pci_device_suspend+0x2c/0x70 <c0f29effd> suspend_devide+0xdd/0x110 .... By the way, I am running mandriva 2007.1 with kernel 2.6.17-14mdv. cpjm

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[alsa-devel] HDA - Add support for more Dell systems
by Tobin Davis 12 Aug '07

12 Aug '07

This patch adds more support for Dell systems with Stac9205 codecs. Tested against a couple of different systems (with different pin configs), but the others should also work. Also cleaned up some of the 9205 patch code. Signed off by Tobin Davis <tdavis(a)dsl-only.net>

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[alsa-devel] Intel HDA pin-config values (patch_sigmatel.c) - Dell Inspiron 1721 (also 1521?) mic
by Thorsten Riess 11 Aug '07

11 Aug '07

Hi, I am wondering where the values of ref9205_pin_configs in patch_sigmatel come from. The SigmaTel documentation gives different reference values for the 9205. The set of values I use at the moment is static unsigned int ref9205_pin_configs[12] = { 0x02214020, 0x02a19041, 0x40000100, 0x40000100, 0x40000100, 0x40000100, 0x40000100, 0x40000100, 0x10a000f0, 0x50a000f0, 0x01441030, 0x01c41030 }; (the first two are actually from the SigmaTel document, the other just mute the remaining in/outs) These numbers actually work quite well for the Dell Inspiron 1721 (and probably for the 1521), even the mic input works - although the quality could be better and the input levels have to be adjusted carefully. Can anybody confirm this? Thorsten.

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[alsa-devel] ALSA WWW moved to Mediawiki
by Jaroslav Kysela 11 Aug '07

11 Aug '07

Hi all, today, I moved www.alsa-project.org to the second ALSA server with Mediawiki. The official URL is: http://www.alsa-project.org/main/index.php/Main_Page or http://www.alsa-project.org (for links from other sites) I also created templates to keep actual release versions in one page. The nice "Download a package" box on main page was taken from mediawiki.org. I'm also working on new box with news for the front page generating news from Main_Page_News. Last change is the modification of Special:Prefixindex (new special name is Special:ALSAPrefixindex) to remove 'Vendor-' and 'Module-' (or any other) prefixes to increase readability of Matrix:Main page. I would like to thank you to all wiki contributors. Jaroslav ----- Jaroslav Kysela <perex(a)suse.cz> Linux Kernel Sound Maintainer ALSA Project, SUSE Labs

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[alsa-devel] Where is simple mixer control "Surround" defined for ac97 or via82xx? I cant find it anywhere in ac97....
by John L. Utz III 10 Aug '07

10 Aug '07

The Surround controls exists: amixer sget Surround Simple mixer control 'Surround',0 Capabilities: pvolume pswitch Playback channels: Front Left - Front Right Limits: Playback 0 - 31 Mono: Front Left: Playback 0 [0%] [-46.50dB] [off] Front Right: Playback 0 [0%] [-46.50dB] [off] amixer controls | grep Surround numid=20,iface=MIXER,name='Surround Playback Switch' numid=21,iface=MIXER,name='Surround Playback Volume' But for the life of me, i cant find the code that implements it! There are many implementations inside of the hda directory, but those dont have anything todo with non hda things, the only item in the ac97 directory is for AD18XX: ac97_codec.c:958:AD18XX_PCM_VOLUME("Surround Playback Volume", 1) This shouldnt have anything to do with VIA 1618 stuff, right? tnx! johnu

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Re: [alsa-devel] Audigy: recording level much too low (microphone)
by Zbigniew Baniewski 10 Aug '07

10 Aug '07

On Fri, Aug 10, 2007 at 07:53:27PM +0200, Peter Zubaj wrote: > Replace 0x0000 with value you want. 0x0000 is gain value - 0x0000 is > minimum and I think it is current default - 0 dB > 0x0101 is 1.5 dB > 0x0202 is 3 dB > .... > 0x0f0f is max - 22.5 dB > step is 1.5 dB Yes! Thanks a lot! :) I realize, it's a "workaround" rather than real solution, but this made Audigy suitable for VOIP (I tried the highest value of 0x0f0f). I've got a feeling, it could be even set in release this way for all the Audigy owners, until the final solution of DSP-related issues will take place, because it doesn't seem to spoil anything (although I didn't made much testing of all the available options yet). Or it could be switched on by some special option: like at "configuration" stage before compilation, or perhaps even as the additional module parameter. -- pozdrawiam / regards Zbigniew Baniewski

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[alsa-devel] why would an scontrol think that it should have 2 items instead of just 1?
by John L. Utz III 10 Aug '07

10 Aug '07

Hello The VT1618 codec has a register value that turns on the Surround Side Output (it's off by default) I have implemented the control, but I am getting a really weird result, i have a bogus 'Item1' that shouldnt exist: jutz-gntdv alsa-driver # amixer sset Side On Simple mixer control 'Side',0 Capabilities: pvolume pswitch enum Items: 'On' 'Off' Item0: 'On' Item1: 'On' jutz-gntdv alsa-driver # amixer sset Side Off Simple mixer control 'Side',0 Capabilities: pvolume pswitch enum Items: 'On' 'Off' Item0: 'Off' Item1: 'On' This wasnt always there, it just showed up during development. Is the number of items cached in a temp file somewhere that i just need to remove? Here's the mixer element: { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = "Side", .info = snd_ac97_vt1618_surside_info, .get = snd_ac97_vt1618_surside_get, .put = snd_ac97_vt1618_surside_put }, Here's the function impls: /* surround side power up or down */ static int snd_ac97_vt1618_surside_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo) { static const char* texts[] = {"On", "Off"}; return ac97_enum_text_info(kcontrol, uinfo, texts, 2); } static int snd_ac97_vt1618_surside_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { struct snd_ac97 *pac97 = snd_kcontrol_chip(kcontrol); ucontrol->value.enumerated.item[0] = (snd_ac97_read(pac97, 0x5c) & 0x0008) >> 3; return 0; } static int snd_ac97_vt1618_surside_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { //0x5c, 3, 1, struct snd_ac97 *pac97 = snd_kcontrol_chip(kcontrol); snd_ac97_update_bits(pac97, 0x5c, 0x0008, ucontrol->value.enumerated.item[0] << 3); return 0; }

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[alsa-devel] [Regression] snd-hda-intel no longer loads as of alsa-driver-hg20070728
by Michael Gerdau 10 Aug '07

10 Aug '07

Hi list, snd-hda-intel does no longer load on my Dell XPS M1710 using alsa-driver-hg20070728. However it works without apparent problems with alsa-driver-hg20070727. I'm running 2.6.22.1-cfs-v19 on a SuSE 10.2 x86_64. Find attached an excerpt from /var/log/messages first loading hg20070727 followed by hg20070728. If you need additional info drop me a note. Best, Michael -- Technosis GmbH, Geschäftsführer: Michael Gerdau, Tobias Dittmar Sitz Hamburg; HRB 89145 Amtsgericht Hamburg Vote against SPAM - see http://www.politik-digital.de/spam/ Michael Gerdau email: mgd(a)technosis.de GPG-keys available on request or at public keyserver

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[alsa-devel] Recent code changes for HD-audio on HG repo
by Takashi Iwai 10 Aug '07

10 Aug '07

Hi, right now I committed a series of patches for HD-audio driver to HG repository. There are two big changes: - The suspend/resume code is rewritten Now the driver uses cached register values to restore the last status. It's much cleaner than the previous code, and should work better. But, I couldn't test it on all existing laptops. So, please test and report any positive/negative feedbacks. - New POWER_SAVE kconfig The driver has POWER_SAVE confiugration. When enabled (it's so if you build from alsa-driver tree), the driver turns off the codec and the controller chips when not used, and turn on again dynamically on demand. Good for laptops, good for mother earth! :) The feature can be enabled/diabled even on the fly via "power_save" module option of snd-hda-intel. For disabling it, write 0 to /sys/modules/snd_hda_intel/parameters/power_save for disabling it, or pass power_save=0 in modprobe option (or its configuration). Again, please give any positive/negative feedbacks, as I couldn't test many devices. thanks, Takashi

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[alsa-devel] Need help with alsa dev wiki migration
by Eliot Blennerhassett 10 Aug '07

10 Aug '07

Greetings, Anybody who can figure out where to put the pages in the ToDo section of this page please step forward now... http://bugtrack.alsa-project.org/main/index.php/DriversInDevelopment The remaining pages in todo here are users home pages, would be great if those users would migrate them. http://bugtrack.alsa-project.org/main/index.php/Developer_Zone Other than these, the contents of the alsa developers wiki has been copied to the alsa wiki. Other eyes checking that this has been done satisfactorily would be appreciated thanks Eliot

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