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[alsa-devel] [PATCH 2/2] [VIRTEX] Register AC97 Controller Reference with the platform bus
by Joachim Förster 09 Aug '07

09 Aug '07

From: Joachim Foerster <JOFT(a)gmx.de> (Patch for Linus' master branch, date 2007/08/08) Signed-off-by: Joachim Foerster <JOFT(a)gmx.de> --- arch/ppc/syslib/virtex_devices.c | 28 ++++++++++++++++++++++++++++ 1 files changed, 28 insertions(+), 0 deletions(-) diff --git a/arch/ppc/syslib/virtex_devices.c b/arch/ppc/syslib/virtex_devices.c index 62a9495..0d6f0ac 100644 --- a/arch/ppc/syslib/virtex_devices.c +++ b/arch/ppc/syslib/virtex_devices.c @@ -121,6 +121,29 @@ }, \ } +#define XPAR_AC97_CONTROLLER_REFERENCE(num) { \ + .name = "ml403_ac97cr", \ + .id = num, \ + .num_resources = 3, \ + .resource = (struct resource[]) { \ + { \ + .start = XPAR_OPB_AC97_CONTROLLER_REF_0_BASEADDR, \ + .end = XPAR_OPB_AC97_CONTROLLER_REF_0_HIGHADDR, \ + .flags = IORESOURCE_MEM, \ + }, \ + { \ + .start = XPAR_OPB_INTC_0_OPB_AC97_CONTROLLER_REF_0_PLAYBACK_INTERRUPT_INTR, \ + .end = XPAR_OPB_INTC_0_OPB_AC97_CONTROLLER_REF_0_PLAYBACK_INTERRUPT_INTR, \ + .flags = IORESOURCE_IRQ, \ + }, \ + { \ + .start = XPAR_OPB_INTC_0_OPB_AC97_CONTROLLER_REF_0_RECORD_INTERRUPT_INTR, \ + .end = XPAR_OPB_INTC_0_OPB_AC97_CONTROLLER_REF_0_RECORD_INTERRUPT_INTR, \ + .flags = IORESOURCE_IRQ, \ + }, \ + }, \ +} + /* UART 8250 driver platform data table */ struct plat_serial8250_port virtex_serial_platform_data[] = { #if defined(XPAR_UARTNS550_0_BASEADDR) @@ -221,6 +244,11 @@ struct platform_device virtex_platform_devices[] = { #if defined(XPAR_TFT_3_BASEADDR) XPAR_TFT(3), #endif + + /* AC97 Controller Reference instances */ +#if defined(XPAR_OPB_AC97_CONTROLLER_REF_0_BASEADDR) + XPAR_AC97_CONTROLLER_REFERENCE(0), +#endif }; /* Early serial support functions */ -- 1.5.2.4

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[alsa-devel] [PATCH] asihpi unify play/capture timer functions
by Eliot Blennerhassett 09 Aug '07

09 Aug '07

Unify the playback and capture timer function. A group of linked streams only uses one timer. Cope with linked streams on more than one card (untested) Signed-off-by: Eliot Blennerhassett <eblennerhassett(a)audioscience.com>

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Re: [alsa-devel] Website to Wiki migration
by Ash Willis 09 Aug '07

09 Aug '07

> Anything missing - tell about it here: > http://bugtrack.alsa-project.org/main/index.php/MigrationPlan > > One proposal for prettier front page is here: > http://bugtrack.alsa-project.org/main/index.php/Talk:Main_Page > Go ahead - criticise, praise, make your own... > The Wiki's looking great. It's obvious that you've thought about where everything should be and how it should all tie in instead of blinding porting the old pages. It's looking very fresh and making much more sense. Is it just me though, or is "Vendor-A-trend Vendor-ALi Vendor-AMD" much harder to read than "A-trend ALi AMD"? Am I OK to go ahead and remove those prefixes or do we want those kept? Same with the modules, although I find the module prefixes much easier to deal with visually for some odd reason. Also, two of the modules that don't have pages were written by myself. I'd be glad to make the pages for those modules but I don't really know what should go on those pages TBH. IMO, most of the info on the module pages is outdated and pointless. At the very least, it's heavily repeated. Is this something we should look at? Personally I find that it's letting down the rather nice new site. Ash -- We've Got Your Name at http://www.mail.com ! Get a FREE E-mail Account Today - Choose From 100+ Domains

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[alsa-devel] ALSA on MIPS platform
by Songmao Tian 09 Aug '07

09 Aug '07

Hi, In http://www.linux-mips.org/archives/linux-mips/2007-04/msg00114.html, Atsushi Nemoto pointed out the problem is discussed before, the thread can be found at http://lkml.org/lkml/2006/1/25/117. Thanks Atsushi Nemoto:) The problem is clear: 1. dma_alloc_noncoherent() return a non-cached address, and virt_to_page() need a cached logical addr (Have I named it right?) 2. mmaped dam buffer should be non-cached. We have a ugly patch, but we want to solve the problem cleanly, so can anyone show me the way? Regards, Tian diff --git a/sound/core/pcm_native.c b/sound/core/pcm_native.c index 59b29cd..fd0aa66 100644 --- a/sound/core/pcm_native.c +++ b/sound/core/pcm_native.c @@ -3138,7 +3138,11 @@ static struct page *snd_pcm_mmap_data_nopage(struct vm_area_struct *area, return NOPAGE_OOM; /* XXX: is this really due to OOM? */ } else { vaddr = runtime->dma_area + offset; +#if defined(__mips__) && defined(CONFIG_DMA_NONCOHERENT) + page = virt_to_page(CAC_ADDR(vaddr)); +#else page = virt_to_page(vaddr); +#endif } get_page(page); if (type) @@ -3254,6 +3258,11 @@ static int snd_pcm_mmap(struct file *file, struct vm_area_struct *area) substream = pcm_file->substream; snd_assert(substream != NULL, return -ENXIO); +#if defined(__mips__) && defined(CONFIG_DMA_NONCOHERENT) + /* all mmap using uncached mode */ + area->vm_page_prot = pgprot_noncached(area->vm_page_prot); +#endif + offset = area->vm_pgoff << PAGE_SHIFT; switch (offset) { case SNDRV_PCM_MMAP_OFFSET_STATUS: diff --git a/sound/core/sgbuf.c b/sound/core/sgbuf.c index cefd228..2251e70 100644 --- a/sound/core/sgbuf.c +++ b/sound/core/sgbuf.c @@ -91,12 +91,21 @@ void *snd_malloc_sgbuf_pages(struct device *device, } sgbuf->table[i].buf = tmpb.area; sgbuf->table[i].addr = tmpb.addr; +#if defined(__mips__) && defined(CONFIG_DMA_NONCOHERENT) + sgbuf->page_table[i] = virt_to_page(CAC_ADDR(tmpb.area)); +#else sgbuf->page_table[i] = virt_to_page(tmpb.area); +#endif sgbuf->pages++; } sgbuf->size = size; +#if defined(__mips__) && defined(CONFIG_DMA_NONCOHERENT) + /* maybe we should use uncached accelerated mode */ + dmab->area = vmap(sgbuf->page_table, sgbuf->pages, VM_MAP, pgprot_noncached(PAGE_KERNEL)); +#else dmab->area = vmap(sgbuf->page_table, sgbuf->pages, VM_MAP, PAGE_KERNEL); +#endif if (! dmab->area) goto _failed; return dmab->area;

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[alsa-devel] Linux 2.6.22 and SB-Live! - broken microphone capture?
by Chris Rankin 09 Aug '07

09 Aug '07

Hi, I have been testing my old SB Live! card with Linux 2.6.22 and the 1.0.14 alsa lib and utils, and I have discovered that the following no longer works: $ arecord -f cd -t wav -d 4 > testin.wav Recording WAVE 'stdin' : Signed 16 bit Little Endian, Rate 44100 Hz, Stereo arecord: pcm_read:1346: read error: Input/output error The testin.wav file is always 44 bytes long. The microphone works, is plugged into the correct slot, and (AFAICT) all the mixer settings are correct: - playback AC97 = 0 - capture AC97 = 100 - mic select = mic1 - mic set to capture - capture volume = 100, and set to capture Has something broken in ALSA, please? Playback seems fine, and I get some kind of noise from the speakers if I raise the Microphone playback volume to 100 and then blow on the microphone. I also have an Audigy 2 card, and microphone capture works fine there. Can anyone confirm this, please? Thanks, Chris ___________________________________________________________ Yahoo! Mail is the world's favourite email. Don't settle for less, sign up for your free account today http://uk.rd.yahoo.com/evt=44106/*http://uk.docs.yahoo.com/mail/winter07.ht…

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[alsa-devel] Website to Wiki migration
by Eliot Blennerhassett 08 Aug '07

08 Aug '07

Greetings, IMO the basic content of the static website has been migrated to the wiki. This doesn't include the following: * http://alsa-project.org/changes/ Changelogs .txt files are referenced, assume they are auto generated? * Contents of http://www.alsa-project.org/alsa/ftp/ * Contents of http://www.alsa-project.org/~iwai/ include "Writing an alsa driver" * User added comments in the soundcard matrix are referenced. (Is there any way to find out which modules in the matrix have user comments attached so that they can be copied across to the wiki?) Anything missing - tell about it here: http://bugtrack.alsa-project.org/main/index.php/MigrationPlan One proposal for prettier front page is here: http://bugtrack.alsa-project.org/main/index.php/Talk:Main_Page Go ahead - criticise, praise, make your own... cheers Eliot

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[alsa-devel] Possible problems with alsa soc
by Nobin Mathew 08 Aug '07

08 Aug '07

Hi Liam, There are some players which will call snd-pcm_close() before any open call, i dont know why they are calling this. So in ASoC it will put the stream in SNDRV_CTL_POWER_D3hot and pop_wait equal to 1. This state will make problems in snd_pcm_prepare (i.e soc_pcm_prepare). Trouble creating players and libraries are mpg123 and gstreamer library. Takashi, We now have priority based alsa plugin, as I explained earlier. all these credits goes to Sudhanshu. This will be usefull for many gps, bluetooth and audio SoCs. But we need to make some changes to make it generic, later we will summit this as a patch. Thanks Nobin Mathew

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[alsa-devel] how to 'alias' a mixer element?
by John L. Utz III 08 Aug '07

08 Aug '07

Hello; If one had a mixer item called 'Surround' and one really wanted to access it as an item called 'Rear' instead of using the existing name 'Surround', would it be possible to create a virtual control called Rear that just maps directly to Surround? tnx! johnu

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[alsa-devel] trouble compiling alsa-drivers
by Wallace, Brooke 08 Aug '07

08 Aug '07

The alsa-drivers INSTALL file tells me: On 2.6 kernels, the build directory has to be given via --with-build=<kernel_build_dir> option additionaly, too. What exactly is mean by kernel_build_dir? I should not have to recompile my kernel because I already have the sourcecore module. Configure seems to work fine and locates my kernel source code: ./configure --with-cards=hda-intel --with-sequencer=yes But when I compile, it fails in acore/pcm_native.c line #75, acore/pcm_native.c line #75 uses the macro DEFINE_RWLOCK which apparently has not been defined yet. Searching thu the alsa-drivers source, I find that include/adriver.h defines this macro. What am I doing wrong? Why doesn't adriver.h get included when I compile acore/pcm_native.c? I'm using the latest release - alsa-driver-1.0.14rc4 My Kernel sources are: 2.6.9-34.EL-smp-i686 Alsa is already working fine on this system using the HDA Intel driver, its a RHEL- 3.4.5-2 system. I just want to re-compile the latest ALSA software and start writing a dummy user space driver that prints to a file or something. I should be able to cmopile all of the latest ALSA software... Any help is appreciated. -Brooke

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[alsa-devel] Noise on rear speaker when switching from 2.0 to 5.1 sound
by Felix Rauscher 07 Aug '07

07 Aug '07

Hello, I have a Hercules Muse 5.1 DVD (C-Media PCI CMI8738-MC6). I have a problem when a running xine (e.g xineliboutput from vdr) switches from 2.0 to 5.1 output. Then the sound quality of the rear speakers is terrible. There is a noise on the rear speakers. If I start the xineliboutput-client when vdr already plays a programme with a 5.1 sound track, the quality is ok. It looks like the switching between 2.0 to 5.1 is a problem. Thank you for your help! Felix

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