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[alsa-devel] Status of snd_pcm_rewind()
by Lennart Poettering 07 Jan '08

07 Jan '08

Hi! What's the status of snd_pcm_rewind()? Is it available on all devices? I assume not (at least dmix doesn't...). But I guess I can safely assume it is available when mmap is used? Is there any API function to test if it is available? I am working on adding "glitch-free" support to PulseAudio. I.e. have a huge playback buffer (> 2s), and schedule playback based on system timers instead of sound card interrupts, thus allowing us to dynamically adjust the inetrrupt frequency to the clients that are connected, and thus save power. I can enable this technique only if I can rewrite the playback buffer whenever I need to, thus I need to in advance if snd_pcm_rewind() will work or not. Lennart -- Lennart Poettering Red Hat, Inc. lennart [at] poettering [dot] net ICQ# 11060553 http://0pointer.net/lennart/ GnuPG 0x1A015CC4

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[alsa-devel] Hello and providing ALSA support to sdl
by M-.-n 07 Jan '08

07 Jan '08

Hi there, My name is Marc and I'm writing a tracker software originally geared towards gameconsole (first GP32 but now GP2X, PC, Mac) and since I got this lovely eee, I'm planning on porting it to debian-derived platforms. Actually it works already but the SDL version I have uses oss and it seems to hickup sometimes although the cpu power consumption seems fine. Other programs (vlc/audacity) seems no to reflect this problem so I guess it's due to the fact they use ALSA while the SDL I got doesn't. When configuring SDL, it seems not to include ALSA (by not finding alsa/soundlib.h) and I'd like to add it but I'm a little confused on the step to follow. ALSA seems to be installed but I guess I miss the includes and compiling libs. Does it mean I need to configure/compile alsa-lib ? Do I risk corrupting my system if the installed libraries are not compatible ? Sorry for the rambling, but I'm only a beginner in terms of developping audio apps under linux. Regards, Marc.

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Re: [alsa-devel] snd-hda-intel support for SPDIF-in wiht vt1708 card?
by forumjunk＠comcast.net 07 Jan '08

07 Jan '08

-------------- Original message ---------------------- [...] > > I'd like to get this card's spdif working. What else can I do to help? > > Although the driver loads, the user space tools can't use the card any > > more. Thank you. > > > Should I assume at this point no more work will be done on the > snd-hda-intel driver to fixing SPDIF-in for the vt1708 sound card? > Thank you for all your work so far. > I think it is a bit early to make that assumption. There isn't a lot of demand for this particular card, but it doesn't seem that it will take too much work to get it going again... after all, it did basically work before the last patch, and I am hoping that Takashi will find some time soon to address the issues. As of this moment, I assume you're in the same boat I'm in, where the user space tools report an inappropriate ioctl for the device. -- Darryl

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[alsa-devel] Conexant CX2051 on HP Spartan
by Claudio Matsuoka 07 Jan '08

07 Jan '08

Hi, I'm working with Herton Krzesinski on a HP Spartan laptop which has a Conexant CX2051 configured with internal and external microphones connected to two different ADC nodes (0x14 and 0x15 in http://helllabs.org/tmp/hp-spartan-ng.png). We were able to get input from one or other ADC, but we weren't able to switch from one capture source to another (switching between 0x17 and 0x1d would be simple, but HP chose to route the external and internal mics to two different ADCs). What is the recommended way to handle this kind of setup?

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[alsa-devel] [PATCH] Another EMU0404 Board ID
by Veli-Matti Valtonen 07 Jan '08

07 Jan '08

Hey, This is based on pseudo-random playing around with the capabilities. With ca0102 this card gives no output atall, ca0108 appears to work fine, so it rather looks similar to the EMU1010b/EMU1010 changes. Some other people seem to have succeeded in using this aswell: https://bugtrack.alsa-project.org/alsa-bug/view.php?id=3496 diff -u -r alsa-driver-hg20071222/alsa-kernel/pci/emu10k1/emu10k1_main.c alsa-driver-hg20071222-0404b/alsa-kernel/pci/emu10k1/emu10k1_main.c --- alsa-driver-hg20071222/alsa-kernel/pci/emu10k1/emu10k1_main.c 2007-12-22 03:00:09.000000000 +0200 +++ alsa-driver-hg20071222-0404b/alsa-kernel/pci/emu10k1/emu10k1_main.c 2007-12-23 23:01:12.807047391 +0200 @@ -1419,6 +1419,14 @@ .ca0102_chip = 1, .spk71 = 1, .emu_model = EMU_MODEL_EMU1010}, /* Emu 1010 */ + /* EMU0404b */ + {.vendor = 0x1102, .device = 0x0008, .subsystem = 0x40021102, + .driver = "Audigy2", .name = "E-mu 0404b [4002]", + .id = "EMU0404", + .emu10k2_chip = 1, + .ca0108_chip = 1, + .spk71 = 1, + .emu_model = EMU_MODEL_EMU0404}, /* EMU 0404 */ /* Tested by James(a)superbug.co.uk 20-3-2007. */ {.vendor = 0x1102, .device = 0x0004, .subsystem = 0x40021102, .driver = "Audigy2", .name = "E-mu 0404 [4002]",

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[alsa-devel] es18xx: Enable wavetable input from ESS chips
by Krzysztof Helt 07 Jan '08

07 Jan '08

From: Krzysztof Helt <krzysztof.h1(a)wp.pl> This patch enables wavetable chips ES689/ES69X connected to ESS ES18xx chips. The wavetable chip uses FM DAC if the clock signal from the wavetable is active. It has no effect if there is no ESS wavetable chip present. Signed-off-by: Krzysztof Helt <krzysztof.h1(a)wp.pl> --- This patch has a gotcha. In theory, the OPL synthesis or wavetable input should use FM DAC depending on the active clock signal from the wavetable chip. Unfortunately, the default state of the wavetable chip from ESS (ES689/ES690/ES692) is to send clock signal all the time. This blocks OPL3 signal if the wavetable chip is present. This problem can be solved with sysex command 4 send to the wavetable chip. It sets the wavetable chip to auto-deactivate mode which switches the wavetable off if there are 5 seconds without midi input (according to the es1879 datasheet). I tested this patch on the es1868 chip without the wavetable. The OPL3 synthesis worked (no clock signal from the wavetable). I tested it on the card with es1868 chip and es690 wavetable. The OPL3 synthesis did not work, the wavetable worked. Both the OPL3 and wavetable worked if the sysex command 4 was sent to the wavetable chip (e.g. by amidi tool). Is it ok to add this sysex command sending to the driver? How? The wavetable clock signal can be detected (there is status bit which says if wavetable is active). Another question is about ES938 chip (bass, treble and 3D control) on the card. This chip is controlled by sysex midi commands. It can be detected (by reading settings with sysex commands). Is it possible to add this to the alsamixer or external tool for setting these controls is recommended? Regards, Krzysztof diff -urp linux-2.6.24/sound/isa/es18xx.c linux-new/sound/isa/es18xx.c --- linux-2.6.24/sound/isa/es18xx.c 2007-12-25 23:23:03.000000000 +0100 +++ linux-new/sound/isa/es18xx.c 2007-12-26 16:30:08.000000000 +0100 @@ -1442,6 +1442,8 @@ static int __devinit snd_es18xx_initiali snd_es18xx_write(chip, 0xB2, 0x50); /* Enable MPU and hardware volume interrupt */ snd_es18xx_mixer_write(chip, 0x64, 0x42); + /* Enable ESS wavetable input */ + snd_es18xx_mixer_bits(chip, 0x48, 0x10, 0x10); } else { int irqmask, dma1mask, dma2mask; ---------------------------------------------------------------------- Rozdajemy nagrody! Wygraj samochod! Sprawdz >> http://link.interia.pl/f1cb8

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[alsa-devel] [PATCH] [ALSA-KERNEL] Add IEC958 digital out support to AD1984 for Lenovo Thinkpads T61/X61
by Jerone Young 07 Jan '08

07 Jan '08

This patch adds IEC958 digital out support for the AD1984 sound card. This card can be found in Lenovo Thinkapds T61/X61. The digital out is not located on the Thinkpad, but optional docking station (it's coxial digital out). I've add this support as it is done the exact same way for the AD1983 & AD1884. I have tested this patch with my Lenovo Thinkpad T61 hooked up to a docking station (that has the digital coxial) and then run to my home theater reciever. Works like a charm :-) Patch is attached and also in this email. Signed-off-by: Jerone Young <jerone(a)gmail.com> diff -r 1227a1c12325 pci/hda/patch_analog.c --- a/pci/hda/patch_analog.c Mon Dec 24 14:40:56 2007 +0100 +++ b/pci/hda/patch_analog.c Thu Dec 27 17:41:13 2007 -0600 @@ -3095,6 +3095,16 @@ static struct snd_kcontrol_new ad1984_th .get = ad198x_mux_enum_get, .put = ad198x_mux_enum_put, }, + /* SPDIF controls */ + HDA_CODEC_VOLUME("IEC958 Playback Volume", 0x1b, 0x0, HDA_OUTPUT), + { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,NONE) "Source", + /* identical with ad1983 */ + .info = ad1983_spdif_route_info, + .get = ad1983_spdif_route_get, + .put = ad1983_spdif_route_put, + }, { } /* end */ }; @@ -3197,7 +3207,7 @@ static int patch_ad1984(struct hda_codec codec->patch_ops.build_pcms = ad1984_build_pcms; break; case AD1984_THINKPAD: - spec->multiout.dig_out_nid = 0; + spec->multiout.dig_out_nid = AD1884_SPDIF_OUT; spec->input_mux = &ad1984_thinkpad_capture_source; spec->mixers[0] = ad1984_thinkpad_mixers; spec->init_verbs[spec->num_init_verbs++] = ad1984_thinkpad_init_verbs;

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[alsa-devel] [PATCH] hda: STAC927x VREF fix
by Matthew Ranostay 07 Jan '08

07 Jan '08

Some laptops incorrectly assume the front input jack as a line in instead of a microphone in. Which in turn disables the voltage reference, in which non-amplified input is not possible. This patch enables VREF80 for the input jack. --- Signed-off-by: Matthew Ranostay <mranostay(a)embeddedalley.com> diff -r eeed28ed6b7d pci/hda/patch_sigmatel.c --- a/pci/hda/patch_sigmatel.c Fri Jan 04 09:22:20 2008 +0100 +++ b/pci/hda/patch_sigmatel.c Fri Jan 04 19:41:06 2008 -0700 @@ -3344,6 +3344,7 @@ static int patch_stac927x(struct hda_cod spec->mixer = stac927x_mixer; break; case STAC_DELL_BIOS: + stac92xx_set_config_reg(codec, 0x0e, 0x02a79130); case STAC_DELL_3ST: /* GPIO2 High = Enable EAPD */ spec->gpio_mask = spec->gpio_data = 0x00000004;

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[alsa-devel] ICE1724 chipset and envy24control
by Norval Watson 07 Jan '08

07 Jan '08

Hi, I just got an M-Audio Audiophile 192 soundcard with ICE1724 chipset. Works out of the box on debian sid. Is there any way to control this card with envy24control utility from alsa-tools? envy24control is written for ICE1712 chipset. Is there any project to develop control utility for ICE1724 card? Seasons greetings, Norval Watson Make the switch to the world's best email. Get the new Yahoo!7 Mail now. www.yahoo7.com.au/worldsbestemail

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[alsa-devel] python midi wrapper
by Aldrin Martoq 07 Jan '08

07 Jan '08

Hello, I need a midi/seq wrapper for Python. I've already created some code for the sequencer API and works great! Here is my python test code: -------------------------------------------------------------------- #!/usr/bin/env python import sys sys.path.append('build/lib.linux-i686-2.5') import alsaaudio print "Creating Sequencer..." seq = alsaaudio.Seq("hw", "Python seqtest.py", alsaaudio.SEQ_OPEN_DUPLEX, alsaaudio.SEQ_NONBLOCK) myid = seq.get_client_id() print "... seq:", myid, seq print "Creating Port..." myport = seq.create_simple_port("Processor port", alsaaudio.SEQ_PORT_CAP_WRITE | alsaaudio.SEQ_PORT_CAP_SUBS_WRITE, alsaaudio.SEQ_PORT_TYPE_APPLICATION) print "... port:", myport #queue = seq.create_queue() #print "... queue:", queue # dump clients and ports def dump_connection(): print print "Client/ports available:" for client in seq.get_client_ports(): clientname, clientid, portlist = client print " client: %3d %s" % (clientid, clientname) for port in portlist: portname, portid, connections = port print " port: %3d:%-2d +-%s" % (clientid, portid, portname) readconn, writeconn = connections for conn in readconn: print " connection to: %s" % conn for conn in writeconn: print " connection from: %s" % conn dump_connection() Is the front seq.connect_ports("0:1", "%d:%d" % (myid, myport)); seq.connect_ports("24:0", "%d:%d" % (myid, myport)); dump_connection() while True: events = seq.receive_events(60000) for ev in events: print ev print "\t", ev.data() -------------------------------------------------------------------- I have tried to contact the mantainer of PyAlsaAudio (cwi(a)unispeed.dk from the README file) for merging my code in his project, but have not received a response so far and the date of files seems old. Is anybody here interested in the merge? How can I put this effor in python-alsaaudio or may I create a new project for this specific task? Is the pyalsa project related to pyalsaaudio? Thanks, -- Aldrin Martoq

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