March 2010 - Alsa-devel - mailman.alsa-project.org

[alsa-devel] underrun problem when short audio play
by ANISH KUMAR 16 Mar '10

16 Mar '10

Hi all, I am facing a problem when i try to play short duration audio(problem is not observerd when i am playing tones which is also short duration audio). Somehow i am getting buffer overrun everytime i am playing short duration audio. It is happening because of avail >= stop_threshold. When i tried to increase the stop_threshold but then i got "same audio played again kind of echo" problem. I can't try the solution suggested by jaroslav i.e. checking for DRAINING state in lower level driver and stop queuing because of some design issue as in my code i don't call drain function as soon as all buffers are written. I wait for some time(in miliseconds) and then call drain function. Please suggest any pointers.Should i increase the buffer size or stop_threshold both of which i tried but to no use. I am always getting underrun problem that too always in the function update_hw_ptr_post function. How can i disable the stop_threshold check?? Thanks, anish

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[alsa-devel] [PATCH 2/4] mmp: support ssp in pxa168
by Haojian Zhuang 16 Mar '10

16 Mar '10

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Re: [alsa-devel] [PATCH 0/4] Some typo fixing
by Jiri Kosina 16 Mar '10

16 Mar '10

On Mon, 15 Mar 2010, Randy Dunlap wrote: > > I have fixed some typos. > > Acked-by: Randy Dunlap <rdunlap(a)xenotime.net> > > Jiri, can you merge these, please, unless someone objects (?). Yes, I will take it, thanks. A couple comments though: - [important!] Thomas, it's not necessary to CC zillions of people on such patches. Just submit them to trivial(a)kernel.org (and eventually CC lkml), and that's it. I believe many people might get annoyed by this. - I will not be applying the drivers/staging hunks. Staging patches are moving target, the code is changing quickly (including complete drops/rewrites) so we'll likely be getting conflicts there. I will reroute them to Greg. - I will fold all the patches into one. We don't need one commit per one specific typo. -- Jiri Kosina SUSE Labs, Novell Inc.

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[alsa-devel] [patch] sequencer: clean up remove bogus check
by Dan Carpenter 16 Mar '10

16 Mar '10

A few lines earlier bend is limited to 2399. So semitones is always less than 24 here. Signed-off-by: Dan Carpenter <error27(a)gmail.com> diff --git a/sound/oss/sequencer.c b/sound/oss/sequencer.c index c798746..e85789e 100644 --- a/sound/oss/sequencer.c +++ b/sound/oss/sequencer.c @@ -1631,8 +1631,6 @@ unsigned long compute_finetune(unsigned long base_freq, int bend, int range, } semitones = bend / 100; - if (semitones > 99) - semitones = 99; cents = bend % 100; amount = (int) (semitone_tuning[semitones] * multiplier * cent_tuning[cents]) / 10000;

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[alsa-devel] [PATCH] ALSA: hda: Use LPIB and 6stack-dig for eMachines T5212
by Daniel Chen 16 Mar '10

16 Mar '10

Hi, Attached is a patch against current sound-2.6 master HEAD (applicable also to 2.6.32.10 and 2.6.33.1) that corrects the model quirk for the OR's machine and adds the LPIB quirk. Best, -Dan

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[alsa-devel] [PATCH 0/4] Some typo fixing
by Thomas Weber 15 Mar '10

15 Mar '10

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[alsa-devel] ALSA not working on HP Touchsmart 600-1100 with CentOS 5.4
by Robert Krakora 15 Mar '10

15 Mar '10

Hello, I have tried installing ALSA driver, lib and util for every version from 1.21 to the tip and I cannot get alsaconf to identify any audio device on my HP Touchsmart 600-1100 with CentOS 5.4 installed. Please see the attached lspci and lshw dumps. Thanks in advance. Best Regards, -- Rob Krakora Senior Software Engineer MessageNet Systems 101 East Carmel Dr. Suite 105 Carmel, IN 46032 (317)566-1677 Ext. 206 (317)663-0808 Fax

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[Patch v2] aconnect -x: Do not update index after removal of connection. Signed-off-by: lieven moors <lievenmoors@gmail.com>
by lieven moors 15 Mar '10

15 Mar '10

--- seq/aconnect/aconnect.c | 43 ++++++++++++------------------------------- 1 files changed, 12 insertions(+), 31 deletions(-) diff --git a/seq/aconnect/aconnect.c b/seq/aconnect/aconnect.c index 1a50666..6092748 100644 --- a/seq/aconnect/aconnect.c +++ b/seq/aconnect/aconnect.c @@ -192,52 +192,33 @@ static void remove_connection(snd_seq_t *seq, snd_seq_client_info_t *cinfo, snd_seq_port_info_t *pinfo, int count) { snd_seq_query_subscribe_t *query; - snd_seq_query_subscribe_alloca(&query); snd_seq_query_subscribe_set_root(query, snd_seq_port_info_get_addr(pinfo)); - snd_seq_query_subscribe_set_type(query, SND_SEQ_QUERY_SUBS_READ); snd_seq_query_subscribe_set_index(query, 0); - for (; snd_seq_query_port_subscribers(seq, query) >= 0; - snd_seq_query_subscribe_set_index(query, snd_seq_query_subscribe_get_index(query) + 1)) { + + while (snd_seq_query_port_subscribers(seq, query) >= 0) + { snd_seq_port_info_t *port; snd_seq_port_subscribe_t *subs; const snd_seq_addr_t *sender = snd_seq_query_subscribe_get_root(query); const snd_seq_addr_t *dest = snd_seq_query_subscribe_get_addr(query); snd_seq_port_info_alloca(&port); - if (snd_seq_get_any_port_info(seq, dest->client, dest->port, port) < 0) - continue; - if (!(snd_seq_port_info_get_capability(port) & SND_SEQ_PORT_CAP_SUBS_WRITE)) - continue; - if (snd_seq_port_info_get_capability(port) & SND_SEQ_PORT_CAP_NO_EXPORT) - continue; - snd_seq_port_subscribe_alloca(&subs); - snd_seq_port_subscribe_set_queue(subs, snd_seq_query_subscribe_get_queue(query)); - snd_seq_port_subscribe_set_sender(subs, sender); - snd_seq_port_subscribe_set_dest(subs, dest); - snd_seq_unsubscribe_port(seq, subs); - } - snd_seq_query_subscribe_set_type(query, SND_SEQ_QUERY_SUBS_WRITE); - snd_seq_query_subscribe_set_index(query, 0); - for (; snd_seq_query_port_subscribers(seq, query) >= 0; - snd_seq_query_subscribe_set_index(query, snd_seq_query_subscribe_get_index(query) + 1)) { - snd_seq_port_info_t *port; - snd_seq_port_subscribe_t *subs; - const snd_seq_addr_t *dest = snd_seq_query_subscribe_get_root(query); - const snd_seq_addr_t *sender = snd_seq_query_subscribe_get_addr(query); - snd_seq_port_info_alloca(&port); - if (snd_seq_get_any_port_info(seq, sender->client, sender->port, port) < 0) - continue; - if (!(snd_seq_port_info_get_capability(port) & SND_SEQ_PORT_CAP_SUBS_READ)) - continue; - if (snd_seq_port_info_get_capability(port) & SND_SEQ_PORT_CAP_NO_EXPORT) + if ((snd_seq_get_any_port_info(seq, dest->client, dest->port, port) < 0) || + !(snd_seq_port_info_get_capability(port) & SND_SEQ_PORT_CAP_SUBS_WRITE) || + (snd_seq_port_info_get_capability(port) & SND_SEQ_PORT_CAP_NO_EXPORT)) + { + snd_seq_query_subscribe_set_index(query, snd_seq_query_subscribe_get_index(query) + 1); continue; + } snd_seq_port_subscribe_alloca(&subs); snd_seq_port_subscribe_set_queue(subs, snd_seq_query_subscribe_get_queue(query)); snd_seq_port_subscribe_set_sender(subs, sender); snd_seq_port_subscribe_set_dest(subs, dest); - snd_seq_unsubscribe_port(seq, subs); + if(snd_seq_unsubscribe_port(seq, subs) < 0){ + snd_seq_query_subscribe_set_index(query, snd_seq_query_subscribe_get_index(query) + 1); + } } } -- 1.6.3.3 --------------020302040200040109060709--

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[alsa-devel] Driver for a codec with built-in DSP for MP3 playback
by Dajun Chen 15 Mar '10

15 Mar '10

Hi all, I am wondering where to find the guidances of developing a device driver for a codec device which has a built-in DSP for MP3 (and tracks in other format) playback and recording? Regards David

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[alsa-devel] [PATCH] ALSA: hda - Add PCI quirks for MSI all-in-one computers NetOn AP1900 and Wind Top AE2220
by Anisse Astier 15 Mar '10

15 Mar '10

Signed-off-by: Anisse Astier <anisse(a)astier.eu> --- Hi, This should make the speakers and jack detection work on those computers. Regards, Anisse sound/pci/hda/patch_realtek.c | 2 ++ 1 files changed, 2 insertions(+), 0 deletions(-) diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c index e8cbe21..970d0b2 100644 --- a/sound/pci/hda/patch_realtek.c +++ b/sound/pci/hda/patch_realtek.c @@ -9191,6 +9191,7 @@ static struct snd_pci_quirk alc882_cfg_tbl[] = { SND_PCI_QUIRK(0x1462, 0x4314, "MSI", ALC883_TARGA_DIG), SND_PCI_QUIRK(0x1462, 0x4319, "MSI", ALC883_TARGA_DIG), SND_PCI_QUIRK(0x1462, 0x4324, "MSI", ALC883_TARGA_DIG), + SND_PCI_QUIRK(0x1462, 0x4570, "MSI Wind Top AE2220", ALC883_TARGA_DIG), SND_PCI_QUIRK(0x1462, 0x6510, "MSI GX620", ALC883_TARGA_8ch_DIG), SND_PCI_QUIRK(0x1462, 0x6668, "MSI", ALC883_6ST_DIG), SND_PCI_QUIRK(0x1462, 0x7187, "MSI", ALC883_6ST_DIG), @@ -9200,6 +9201,7 @@ static struct snd_pci_quirk alc882_cfg_tbl[] = { SND_PCI_QUIRK(0x1462, 0x7280, "MSI", ALC883_6ST_DIG), SND_PCI_QUIRK(0x1462, 0x7327, "MSI", ALC883_6ST_DIG), SND_PCI_QUIRK(0x1462, 0x7350, "MSI", ALC883_6ST_DIG), + SND_PCI_QUIRK(0x1462, 0x7437, "MSI NetOn AP1900", ALC883_TARGA_DIG), SND_PCI_QUIRK(0x1462, 0xa422, "MSI", ALC883_TARGA_2ch_DIG), SND_PCI_QUIRK(0x1462, 0xaa08, "MSI", ALC883_TARGA_2ch_DIG), -- 1.6.5.7

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