May 2017 - Alsa-devel - mailman.alsa-project.org

[alsa-devel] [PATCH v2 15/53] docs-rst: add sound book to pdf output
by Mauro Carvalho Chehab 16 May '17

16 May '17

The sound subsystem book was added without the bits required to generate PDF output. Add them. Signed-off-by: Mauro Carvalho Chehab <mchehab(a)s-opensource.com> --- Documentation/conf.py | 2 ++ Documentation/sound/conf.py | 10 ++++++++++ 2 files changed, 12 insertions(+) create mode 100644 Documentation/sound/conf.py diff --git a/Documentation/conf.py b/Documentation/conf.py index 1d461f0c1cd0..bca751960dec 100644 --- a/Documentation/conf.py +++ b/Documentation/conf.py @@ -371,6 +371,8 @@ latex_documents = [ 'The kernel development community', 'manual'), ('security/index', 'security.tex', 'The kernel security subsystem manual', 'The kernel development community', 'manual'), + ('sound/index', 'sound.tex', 'Linux Sound Subsystem Documentation', + 'The kernel development community', 'manual'), ] # The name of an image file (relative to this directory) to place at the top of diff --git a/Documentation/sound/conf.py b/Documentation/sound/conf.py new file mode 100644 index 000000000000..3f1fc5e74e7b --- /dev/null +++ b/Documentation/sound/conf.py @@ -0,0 +1,10 @@ +# -*- coding: utf-8; mode: python -*- + +project = "Linux Sound Subsystem Documentation" + +tags.add("subproject") + +latex_documents = [ + ('index', 'sound.tex', project, + 'The kernel development community', 'manual'), +] -- 2.9.3

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[alsa-devel] [PATCH alsa-lib 1/2] build: Define __USE_UNIX98 for old glibc
by Takashi Iwai 16 May '17

16 May '17

Otherwise PTHREAD_MUTEX_RECURSIVE isn't defined and we get an error with old glibc. Signed-off-by: Takashi Iwai <tiwai(a)suse.de> --- src/pcm/pcm_local.h | 1 + 1 file changed, 1 insertion(+) diff --git a/src/pcm/pcm_local.h b/src/pcm/pcm_local.h index 32e6dcdf6fcd..e4f652187c49 100644 --- a/src/pcm/pcm_local.h +++ b/src/pcm/pcm_local.h @@ -35,6 +35,7 @@ #include "local.h" #ifdef THREAD_SAFE_API +#define __USE_UNIX98 1 /* for old glibc */ #include <pthread.h> #endif -- 2.13.0

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[alsa-devel] [PATCH RFC 00/21] ALSA: pcm: add tracepoints for PCM params operation
by Takashi Sakamoto 16 May '17

16 May '17

Hi, In the last Audio Mini Conference held with Linux Plumber conference 2016[1], I mentioned about tracepoints for PCM params operation. This patchset is for the idea. In ALSA PCM interface, applications can get hardware capability by ioctl(2) with SNDRV_PCM_IOCTL_HW_REFINE/SNDRV_PCM_IOCT_HW_PARAMS in a shape of 'struct snd_pcm_hw_params'. In kernel side, relevant processing is somewhat complicated and developers sometimes have hard time to debug drivers for PCM constraints and rules. This patchset adds tracepoints for hw_params operations. When CONFIG_SND_DEBUG is enabled, you can see 'trace_hw_params_mask/trace_hw_params_interval' events of 'snd_pcm' subsystem. When applications execute ioctl(2) with SNDRV_PCM_IOCTL_HW_REFINE/SNDRV_PCM_IOCTL_HW_PARAMS, these events are probed. Developers can get how many PCM rules are added into runtime of PCM substream and which rule changed which parameters. This patchset also includes some improvements. The last three commits brings small changes to kernel/userspace interface for error handling. I'm happy to receive your comment for this patchset. For your information, low level application of SNDRV_PCM_IOCTL_HW_REFINE operation is available in my github repository[2]. [1] You can see minutes. http://mailman.alsa-project.org/pipermail/alsa-devel/2016-November/114279.h… [2] refine-pcm-param.c https://github.com/takaswie/alsa-ioctl-test Takashi Sakamoto (21): ALSA: pcm: add a helper function to constrain mask-type parameters ALSA: pcm: add a helper function to constrain interval-type parameters ALSA: pcm: add a helper function to apply parameter rules ALSA: pcm: tracepoints for refining PCM parameters ALSA: pcm: enable parameter tracepoints at CONFIG_SND_DEBUG only ALSA: pcm: use goto statement instead of while statement to reduce indentation ALSA: pcm: remove function local variable with alternative evaluation ALSA: pcm: adaption of code formatting ALSA: pcm: add comment about application of rule to PCM parameters ALSA: pcm: constify function local and read-only table ALSA: pcm: localize snd_pcm_hw_params_choose() ALSA: pcm: add tracepoints for selection process of hardware parameters at SNDRV_PCM_IOCTL_HW_PARAMS ALSA: pcm: use helper functions to check whether parameters are determined ALSA: pcm: use helper function to refer parameter as read-only ALSA: pcm: add const qualifier for read-only table for sampling rate ALSA: pcm/oss: refer to parameters instead of copying to reduce usage of kernel stack ALSA: pcm: check type of parameter in added rule ALSA: pcm: calculate non-mask/non-interval parameters always when possible ALSA: pcm: move fixup of info flag after selecting single parameters ALSA: pcm: return error immediately for parameters refinement ALSA: pcm: return error immediately at refine ioctl include/sound/pcm.h | 1 - sound/core/Makefile | 1 + sound/core/oss/pcm_oss.c | 20 +- sound/core/oss/pcm_plugin.c | 5 +- sound/core/oss/pcm_plugin.h | 2 +- sound/core/pcm_drm_eld.c | 8 +- sound/core/pcm_lib.c | 55 +---- sound/core/pcm_native.c | 485 ++++++++++++++++++++++++++++-------------- sound/core/pcm_params_trace.h | 142 +++++++++++++ 9 files changed, 494 insertions(+), 225 deletions(-) create mode 100644 sound/core/pcm_params_trace.h -- 2.9.3

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[alsa-devel] [PATCH 0/6] Cleanup and removal of set_fs() from HD-audio
by Takashi Iwai 16 May '17

16 May '17

Hi, this is the resubmission of a part of the previous RFC patchset. There is no change since then for them, it's just officially submitted for merging to 4.13. Takashi === Takashi Iwai (6): ALSA: hda - Simplify bound-beep mute control for ALC268 ALSA: hda - Move bind-mixer switch codes to generic parser ALSA: hda - Remove the generic bind ctl helpers ALSA: hda - Remove the use of set_fs() ALSA: hda - Fix a typo in comment ALSA: hda - Remove superfluous header inclusions sound/pci/hda/hda_codec.c | 251 ++++++------------------------------------ sound/pci/hda/hda_generic.c | 46 +++++++- sound/pci/hda/hda_local.h | 61 ---------- sound/pci/hda/patch_realtek.c | 37 +++++-- 4 files changed, 103 insertions(+), 292 deletions(-) -- 2.12.2

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[alsa-devel] [PATCH 0/2] Remove set_fs() from drivers
by Takashi Iwai 16 May '17

16 May '17

Hi, this is again a resubmission of a part of the previous RFC patchset. No changes for them, just submitted as the official patches for merging to 4.13. Takashi === Takashi Iwai (2): ALSA: opl3: Kill unused set_fs() ALSA: emu10k1: Get rid of set_fs() usage sound/drivers/opl3/opl3_oss.c | 14 ----- sound/pci/emu10k1/emufx.c | 127 ++++++++++++++++++++++++------------------ 2 files changed, 73 insertions(+), 68 deletions(-) -- 2.12.2

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[alsa-devel] [PATCH 00/13] Get rid of DocBook
by Mauro Carvalho Chehab 16 May '17

16 May '17

As just one book (lsm) was missing conversion, let's convert it and store as if it were a plain text file under Documentation/lsm.txt, adding a notice that it requires update. This way, as everything is now converted, we can get rid of the DocBook building system and update places that were mentioning it. PS.: We could also remove the parts of the kernel-doc script that produce DocBook outputs, but, as this might still be useful for someone, for now let's just keep the functionality there. - This patch series is based on my past 00/05 and 00/36 patch series that convert the other DocBooks to ReST, applied on the top of docs tree (next branch). The full patch series is on this tree is at: https://git.linuxtv.org//mchehab/experimental.git/log/?h=docbook2 And the HTML output at: http://www.infradead.org/~mchehab/kernel_docs/ https://mchehab.fedorapeople.org/kernel_docs/ Mauro Carvalho Chehab (13): docs-rst: convert lsm from DocBook to ReST docs: remove DocBook from the building system docs: update old references for DocBook from the documentation MAINTAINERS: update old references for DocBook directory ata: update references for libata documentation ia64, scsi: update references for the device-io book irq: update genericirq book location fs: update location of filesystems documentation lib: update location of kgdb documentation sound: fix the comments that refers to kernel-doc fs: fix the location of the kernel-api book usb: fix the comment with regards to DocBook docs-rst: get rid of Documentation/sphinx/tmplcvt script Documentation/00-INDEX | 6 +- Documentation/DocBook/.gitignore | 17 -- Documentation/DocBook/Makefile | 276 ----------------------------- Documentation/DocBook/lsm.tmpl | 265 --------------------------- Documentation/DocBook/stylesheet.xsl | 11 -- Documentation/Makefile | 125 +++++++++++++ Documentation/Makefile.sphinx | 130 -------------- Documentation/PCI/MSI-HOWTO.txt | 2 +- Documentation/admin-guide/README.rst | 6 - Documentation/doc-guide/docbook.rst | 90 ---------- Documentation/doc-guide/index.rst | 1 - Documentation/doc-guide/sphinx.rst | 5 - Documentation/fb/api.txt | 4 +- Documentation/gpu/todo.rst | 2 +- Documentation/kernel-doc-nano-HOWTO.txt | 65 ++----- Documentation/lsm.txt | 201 +++++++++++++++++++++ Documentation/process/changes.rst | 26 +-- Documentation/process/howto.rst | 8 - Documentation/process/kernel-docs.rst | 34 +--- Documentation/sphinx/tmplcvt | 28 --- Documentation/translations/ja_JP/howto.rst | 7 - Documentation/translations/ko_KR/howto.rst | 7 - MAINTAINERS | 5 +- Makefile | 11 +- arch/ia64/include/asm/io.h | 2 +- arch/ia64/sn/kernel/iomv.c | 2 +- drivers/ata/acard-ahci.c | 2 +- drivers/ata/ahci.c | 2 +- drivers/ata/ahci.h | 2 +- drivers/ata/ata_piix.c | 2 +- drivers/ata/libahci.c | 2 +- drivers/ata/libata-core.c | 2 +- drivers/ata/libata-eh.c | 2 +- drivers/ata/libata-scsi.c | 2 +- drivers/ata/libata-sff.c | 2 +- drivers/ata/libata.h | 2 +- drivers/ata/pata_pdc2027x.c | 2 +- drivers/ata/pdc_adma.c | 2 +- drivers/ata/sata_nv.c | 2 +- drivers/ata/sata_promise.c | 2 +- drivers/ata/sata_promise.h | 2 +- drivers/ata/sata_qstor.c | 2 +- drivers/ata/sata_sil.c | 2 +- drivers/ata/sata_sis.c | 2 +- drivers/ata/sata_svw.c | 2 +- drivers/ata/sata_sx4.c | 2 +- drivers/ata/sata_uli.c | 2 +- drivers/ata/sata_via.c | 2 +- drivers/ata/sata_vsc.c | 2 +- drivers/scsi/qla1280.c | 2 +- drivers/usb/gadget/Kconfig | 2 +- fs/debugfs/file.c | 2 +- fs/debugfs/inode.c | 2 +- include/linux/ata.h | 2 +- include/linux/debugfs.h | 2 +- include/linux/libata.h | 2 +- include/sound/pcm.h | 2 +- kernel/irq/chip.c | 2 +- kernel/irq/handle.c | 2 +- kernel/irq/irqdesc.c | 2 +- lib/Kconfig.debug | 2 +- lib/Kconfig.kgdb | 2 +- scripts/Makefile | 9 +- scripts/check-lc_ctype.c | 11 -- 64 files changed, 396 insertions(+), 1032 deletions(-) delete mode 100644 Documentation/DocBook/.gitignore delete mode 100644 Documentation/DocBook/Makefile delete mode 100644 Documentation/DocBook/lsm.tmpl delete mode 100644 Documentation/DocBook/stylesheet.xsl delete mode 100644 Documentation/Makefile.sphinx delete mode 100644 Documentation/doc-guide/docbook.rst create mode 100644 Documentation/lsm.txt delete mode 100755 Documentation/sphinx/tmplcvt delete mode 100644 scripts/check-lc_ctype.c -- 2.9.3

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[alsa-devel] future of sounds/oss
by Christoph Hellwig 16 May '17

16 May '17

Ho Jaroslav, hi Takashi, do you know who still uses the sound/oss drivers and why? I've recently been looking into getting rid of set_fs for using copy_{from,to}_user and friends on kernel pointers, and the sound code is a big abuser, both ALSA and the legacy OSS code. But looking at the OSS code it's pretty grotty, and also appears to be pretty much unmaintained except for global cleanups. Is there any chance we could look into getting rid of it over the next few merge windows or are there people that rely on it?

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[alsa-devel] [PATCH] ALSA: hda - No loopback on ALC299 codec
by Takashi Iwai 16 May '17

16 May '17

ALC299 has no loopback mixer, but the driver still tries to add a beep control over the mixer NID which leads to the error at accessing it. This patch fixes it by properly declaring mixer_nid=0 for this codec. Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=195775 Fixes: 28f1f9b26cee ("ALSA: hda/realtek - Add new codec ID ALC299") Cc: stable(a)vger.kernel.org Signed-off-by: Takashi Iwai <tiwai(a)suse.de> --- sound/pci/hda/patch_realtek.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c index 58df440013c5..9c22ad694534 100644 --- a/sound/pci/hda/patch_realtek.c +++ b/sound/pci/hda/patch_realtek.c @@ -6465,8 +6465,11 @@ static int patch_alc269(struct hda_codec *codec) break; case 0x10ec0225: case 0x10ec0295: + spec->codec_variant = ALC269_TYPE_ALC225; + break; case 0x10ec0299: spec->codec_variant = ALC269_TYPE_ALC225; + spec->gen.mixer_nid = 0; /* no loopback on ALC299 */ break; case 0x10ec0234: case 0x10ec0274: -- 2.12.2

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Re: [alsa-devel] Distorted audio from microphone (Logitech C310)
by Greg KH 16 May '17

16 May '17

On Mon, May 15, 2017 at 03:29:09PM +0200, Domker_ wrote: > My webcam Logitech C310 have a distored microphone audio on kernel 4.10.15-1 > and 4.11.0-1. (on 4.9.27-1 and the older ones is fine). > The distortion effect is as if I spoke very, very fast (like a damn Mickey > Mouse) > > I checked and the bug occurs on both computers I have. (with the same > camera/different sound cards, hardware and different Linux distributions) > The bug always occurs when running a system with a kernel newer than 4.9.x. > > The camera has two internal microphones. > Secound kernel 4.11.0-1 (x86_64) compiled from kernel.org! > > (tested under Linux Arch and Linux Manjaro) Hm, maybe the Linux sound developers can help out here (added to cc:)

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[alsa-devel] [PATCH 0/2] ASoC: sunxi: Add ADC support for A33
by Mylène Josserand 16 May '17

16 May '17

Hello everyone, This is a first version of a serie to add ADC support for Sun8i-A33. Based on asoc/for-next branch, last commit: 20d5c84bef067b7e804a163e2abca16c47125bad. The first patch adds the support of ADC and microphones in the digital part (driver sun8i-codec). The second one adds the route between analog (sun8i-codec-analog) and digital (sun8i-codec) parts to have a functional ADC route on Sun8i-A33 device tree. Tested on Allwinner R16 Parrot board with microphone 1 (external) and microphone 2 (headset). I am not sure about the bias handling so if you have any comments on it, do not hesitate. Thank you in advance! Best regards, Mylène Josserand (2): ASoC: sun8i-codec: Add ADC support for a33 ARM: dts: sun8i: Add ADC routing arch/arm/boot/dts/sun8i-a33.dtsi | 10 ++++- sound/soc/sunxi/sun8i-codec.c | 80 +++++++++++++++++++++++++++++++++++++++- 2 files changed, 87 insertions(+), 3 deletions(-) -- 2.11.0

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