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[alsa-devel] [ANNOUNCE] patch for INTEL HDMI codec
by Wu Fengguang 29 Oct '08

29 Oct '08

Hello, We have recently enabled sound output for Intel HDMI codecs, and would like to share the good news and some early code :-) The audio enabling code includes both ALSA and X.Org patches. Attached is one single patch against today's sound-2.6 tree. It contains very basic code for handling - audio infoframe - ELD(E-EDID Like Data) - unsolicited response The patch is full enough to produce stereo sound via HDMI. But it still lacks features and contains many 'defined but unused' staffs. It was tested OK on ASUS P5E-VM board and HP 2230s notebook. It _should_ also work on Intel DG45ID board. Takashi, I can prepare a trimmed-down patch series, in doing so I'd like to know if you are interested in the basic DIP/ELD/UNSOL routines? Or should I only submit bare code comparable to the current patch_atihdmi.c? Thank you, Fengguang --- PS: the patch can now produce the following ELD information: [10340.656719] eldv = 1, pinp = 1 [10340.660711] ELD buffer size is 64 [10340.660716] ELD baseline len is 10*4 [10340.660720] vendor block len is 20 [10340.660724] ELD version is CEA-861D or below [10340.660728] CEA-EDID version is CEA-861-B, C or D [10340.660732] manufacture name is 0x4544 [10340.660736] product code is 0xa02c [10340.660740] port id is 0x0 [10340.660743] HDCP support is 0 [10340.660747] AI support is 0 [10340.660751] SAD count is 0 [10340.660754] audio sync delay is 0 [10340.660758] connection type is HDMI [10340.660763] speaker allocations: [10340.660766] monitor name is DELL 2408WFP

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[alsa-devel] snd-hda-intel prevents machine to power off
by Luiz Fernando N. Capitulino 29 Oct '08

29 Oct '08

Hi Takashi, If I have some process with the sound device opened in my eeepc (say KDE's kmix) and try to power off the machine, for example with: # echo o > /proc/sysrq-trigger The machine will not power off. But it does work if I remove the snd-hda-intel module before issuing the echo above. This problem seems to be pretty popular among distros, I could find it reported for Mandriva, Ubuntu and Fedora. Its workaround is also documented in a few wikis: people are doing a 'rmmod snd-hda-intel' in the last halt stage (ie, halt script in etc). I have tested with 2.6.27.4 and latest 2.7.28-rc2. How I can I help you to debug this? Thanks. -- Luiz Fernando N. Capitulino

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[alsa-devel] Definition of frame
by Bankim Bhavsar 29 Oct '08

29 Oct '08

I want to clarify my understanding regarding the definition of frame in Alsa lingo. For a "stereo" DAC channel with 16-bit samples, number of bytes per frame = 4 bytes, correct? basically L & R samples each 16 bit, 16 * 2 = 32 bits = 4 bytes. Reason being alsa-lib APIs use number of frames instead of bytes and I want to make sure I compute right number of frames. Thanks, Bankim

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[alsa-devel] [PATCH] ALSA: hda: Add HDA vendor ID for Wolfson Microelectronics
by Mark Brown 28 Oct '08

28 Oct '08

Add Wolfson Microelectronics to the HDA vendor ID table. Signed-off-by: Mark Brown <broonie(a)opensource.wolfsonmicro.com> --- sound/pci/hda/hda_codec.c | 1 + 1 files changed, 1 insertions(+), 0 deletions(-) diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c index 6447754..ba1ab73 100644 --- a/sound/pci/hda/hda_codec.c +++ b/sound/pci/hda/hda_codec.c @@ -64,6 +64,7 @@ static struct hda_vendor_id hda_vendor_ids[] = { { 0x14f1, "Conexant" }, { 0x17e8, "Chrontel" }, { 0x1854, "LG" }, + { 0x1aec, "Wolfson Microelectronics" }, { 0x434d, "C-Media" }, { 0x8384, "SigmaTel" }, {} /* terminator */ -- 1.5.6.5

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Re: [alsa-devel] [PATCH] Remove unused variable 'codec' from sound/soc/codecs/tlv320aic23.c
by Arun KS 28 Oct '08

28 Oct '08

Manish Katiyar wrote: > [ Apologies if this is not the proper list for this patch, but I > couldn't find any list more appropriate for this] > > Below patch removes the following warning. > sound/soc/codecs/tlv320aic23.c:424: warning: unused variable 'codec' CCing Troy Troy has got some patch which adds support for more mclk frequencies. So that variable will be required. Thanks, Arun KS > > > Signed-off-by: Manish Katiyar <mkatiyar(a)gmail.com> > --- > sound/soc/codecs/tlv320aic23.c | 2 -- > 1 files changed, 0 insertions(+), 2 deletions(-) > > diff --git a/sound/soc/codecs/tlv320aic23.c b/sound/soc/codecs/tlv320aic23.c > index 44308da..45395d0 100644 > --- a/sound/soc/codecs/tlv320aic23.c > +++ b/sound/soc/codecs/tlv320aic23.c > @@ -421,8 +421,6 @@ static int tlv320aic23_set_dai_fmt(struct > snd_soc_dai *codec_dai, > static int tlv320aic23_set_dai_sysclk(struct snd_soc_dai *codec_dai, > int clk_id, unsigned int freq, int dir) > { > - struct snd_soc_codec *codec = codec_dai->codec; > - > switch (freq) { > case 12000000: > return 0;

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[alsa-devel] [PATCH] Remove unused variable 'codec' from sound/soc/codecs/tlv320aic23.c
by Manish Katiyar 28 Oct '08

28 Oct '08

[ Apologies if this is not the proper list for this patch, but I couldn't find any list more appropriate for this] Below patch removes the following warning. sound/soc/codecs/tlv320aic23.c:424: warning: unused variable 'codec' Signed-off-by: Manish Katiyar <mkatiyar(a)gmail.com> --- sound/soc/codecs/tlv320aic23.c | 2 -- 1 files changed, 0 insertions(+), 2 deletions(-) diff --git a/sound/soc/codecs/tlv320aic23.c b/sound/soc/codecs/tlv320aic23.c index 44308da..45395d0 100644 --- a/sound/soc/codecs/tlv320aic23.c +++ b/sound/soc/codecs/tlv320aic23.c @@ -421,8 +421,6 @@ static int tlv320aic23_set_dai_fmt(struct snd_soc_dai *codec_dai, static int tlv320aic23_set_dai_sysclk(struct snd_soc_dai *codec_dai, int clk_id, unsigned int freq, int dir) { - struct snd_soc_codec *codec = codec_dai->codec; - switch (freq) { case 12000000: return 0; -- 1.5.4.3 Thanks - Manish

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[alsa-devel] [PATCH] ASoC/pxa-ssp.c: fix build on pxa2xx
by Daniel Ribeiro 27 Oct '08

27 Oct '08

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[alsa-devel] [PATCH] ASoC/pxa-ssp.c: keep up with pxa api changes
by Daniel Ribeiro 27 Oct '08

27 Oct '08

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[alsa-devel] problem persist on Mac Pro (quad pro) using fedora 9
by S. Aguinaga 27 Oct '08

27 Oct '08

Hello Team, I'm hoping that some of you folks might know the work-around and or fix to my Mac Pro (quad core) installation of alsa ( on fedora 9 ). I wanted to get the record to work copied the same thing I did on my laptop MacBook Pro, which is working ( to some extent, such as with audacity ), but on the Mac Pro tower it has gotten worse. I used to have audio on the front speaker, and now I have none. And I'm not sure what else to try. aplay 1.wav does not generate sound, but alsamixer seems to have all ports on and looking ok. 1. /etc/modprobe.d/sound reads: options snd-hda-intel model=macpro 2. ~/.asound reads ( but my gui volume controls tools don't work ) ... I'm wondering if there anyway to not rely on pulseaudio or if I need to have pulseaudio working on my fedora 9 installation. pcm.pulse{ type pulse } ctl.pulse { type pulse } pcm.phononpulse { type plug slave.pcm { type pulse } hint { show on description "PulseAudio" } } 3. the file /etc/asound.conf reads the following ... so I wonder if this is enough and should I erase .asoundrc ? If so, what else do I need to get audio working. pcm.!default { type hw card Intel } ctl.!default { type hw card Intel } I also have asound.state and where should I check to see if it is ok? // Sal // Northwestern University - HARP

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[alsa-devel] 'multi' plugin signals POLLOUT but snd_pcm_avail_update() returns 0
by Lennart Poettering 27 Oct '08

27 Oct '08

Heya! There's a apparently a bug in the 'multi' plugin. When it is used it will pretty often signal POLLOUT when used with snd_pcm_poll_descriptors_revents() and the subsequent call to snd_pcm_update_avail() will still return 0. Doesn't look right to me. Lennart -- Lennart Poettering Red Hat, Inc. lennart [at] poettering [dot] net ICQ# 11060553 http://0pointer.net/lennart/ GnuPG 0x1A015CC4

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