Detailed changelog between 1.0.29 and 1.1.0 releases

Changelog between 0.2.0 and 1.1.0 releases

alsa-lib

Core

- Release v1.1.0

- support building w/out System V shared memory

Some systems, like Android/Bionic, do not support SysV at all.

Let the configure script detect if the header is available, and

if not, automatically disable the pieces that require it.

- fix _GNU_SOURCE handling & header inclusion

The configure script blindly adds -D_GNU_SOURCE to all build settings,

even on non-GNU systems. This isn't too much of a big deal (even if

it uses the wrong variable -- CFLAGS instead of CPPFLAGS), except that

the alsa-lib source itself determines whether to use GNU features when

this is defined (such as versionsort). So when we build on non-glibc

systems, we get build failures like:

src/ucm/parser.c:1268:18: error: 'versionsort' undeclared (first use in this function)

#define SORTFUNC versionsort

^

src/ucm/parser.c:1272:54: note: in expansion of macro 'SORTFUNC'

err = scandir(filename, &namelist, filename_filter, SORTFUNC);

^

The correct way to add these flags is to use the autoconf helper

AC_USE_SYSTEM_EXTENSIONS. Unfortunately, that triggers some more

bugs in the alsa build. This macro adds defines to config.h and

not directly to CPPFLAGS, so it relies on files correctly including

config.h before anything else. A number of alsa files do not do

this leading to build failures. The fix there is to shuffle the

includes around so that the local ones come first.

- build: Do not try to detect cross-compiler

cross compilers are passed via path may not be a gcc based cross

compiler in such cases this check fails and try's to force gcc based

cross compiler detection, This code is a convenience that limits the

build system

- core: add convenience macros to local.h

Move ARRAY_SIZE() from tplg_local.h to local.h and add container_of()

macro to local.h. Both macros are generic but are initially used by

topology.

- conf: topology: Add topology file for broadwell audio DSP

- topology: autotools: Add build support for topology core

- Replace list.h with its own version

We copied include/list.h from Linux kernel, and it's of course in

GPLv2. This has raised concerns to many people, as it's not clear

whether such a code is considered to be completely trivial, thus it

might be seen as a derivative work, which takes effect in GPL, as

suggested by Clemens.

For clearing the situation, this patch replaces the existing list.h

implementation from a new version. The API is kept to be compatible,

but the codes were written from full scratch under LGPL, to be aligned

with other alsa-lib codes.

Reported-by: Clemens Lang <clemens.lang@bmw-carit.de>

- Allow hint for ctl, hwdep, timer and seq

Like pcm and rawmidi, each object parser needs to accept the hint

component. Now a new local function _snd_conf_generic_id() was

introduced to replace each call of "comment" and "type" field checks.

Also, the two existing identical functions for pcm and rawmidi are

removed and the new function is used commonly.

- conf/ucm: Add Makefile.am for broadwell-rt286 ucm config

Config API

- Replace unsafe characters with _ in card name

Otherwise, they get misinterpreted as argument separators

in USB-Audio PCM definitions, and thus prevent SPDIF blacklist entries

from working.

While at it, add my Logitec C910 webcam to the SPDIF blacklist.

Control API

- control: Allow cset'ing specific values in the multi-value case

Improve the parser to allow empty elements followed by a comma.

Now amixer works like below for setting only the third element.

% amixer cset 'IIR1 Band1' ,,200

Reported-and-tested-by: Arun Raghavan <arun@accosted.net>

- Allow hint for ctl, hwdep, timer and seq

Like pcm and rawmidi, each object parser needs to accept the hint

component. Now a new local function _snd_conf_generic_id() was

introduced to replace each call of "comment" and "type" field checks.

Also, the two existing identical functions for pcm and rawmidi are

removed and the new function is used commonly.

- namehint: Fix bad free with invalid iface name

Due to the uninitialized field before the error path, passing an

invalid iface argument may result in a bad free() call. Initialize

the fields properly beforehand.

- namehint: Fix the listing without device number

The current code of snd_device_name_hint() has a bug when listing up

devices without the device index (e.g. ctl). Because it assigns the

default device index 0 unconditionally and it has a check at the later

point to filter entries with dev >= 0, it ended up with empty

outputs.

The fix is simply to remove the bogus assignment of dev = 0.

- namehint: Fix invalid list access in snd_device_name_hint()

snd_device_name_hint() tries to free the allocated list at the error

path via snd_device_name_free_hint(). But snd_device_name_free_hint()

expects a list terminated by NULL while snd_device_name_hint() doesn't

add it. Adding it may again result in an error and thus isn't

guaranteed to work. Hence we can't add NULL at the error path.

Instead, now the code always allocates one entry more, and zero-clears

the newly allocated beforehand to guarantee the NULL termination.

HWDEP API

- hwdep: add FireWire digi00x/tascam driver support

Linux 4.4 newly support these drivers. Their hardware dependent interfaces

give functionalities to get hardware information, to lock/unlock kernel

streaming and to receive lock status event.

- Allow hint for ctl, hwdep, timer and seq

Like pcm and rawmidi, each object parser needs to accept the hint

component. Now a new local function _snd_conf_generic_id() was

introduced to replace each call of "comment" and "type" field checks.

Also, the two existing identical functions for pcm and rawmidi are

removed and the new function is used commonly.

PCM API

- support building w/out System V shared memory

Some systems, like Android/Bionic, do not support SysV at all.

Let the configure script detect if the header is available, and

if not, automatically disable the pieces that require it.

- pcm: drop unused sys/shm.h inclusion

This header isn't used in these files, so stop trying to include it.

This helps builds on systems that don't provide the header (such as

Android/Bionic).

- move page helpers to common code

If you build with --disable-pcm, the rawmidi code fails to link because

it uses the page_size helper declared in local.h, but the page_* funcs

are in the pcm mmap module. Move these funcs into conf.c so that they

are always available to the rest of the system.

- pcm: dmix: Handle slave PCM xrun and unexpected states properly

Currently, dmix & co plugins ignore the XRUN state of the slave PCM.

It's (supposedly) because dmix deals with the PCM in a free-wheel

mode, which is equivalent with XRUN. But, this difference (whether

the correct freewheel or XRUN) should be done by the kernel, and we

may have an XRUN state indeed (e.g. via xrun injection).

This patch fixes this lack of behavior, to handle PCM xrun and does

prepare when the slave PCM is in such a state.

Also, the patch consolidates the prepare callback for all dmix, dsnoop

and dshare plugins, and fix/cleanup a bit for dshare/dsnoop codes to

align with dsnoop code.

- pcm: ladspa: Fix segfault due to a wrong channel reference

Because of a typo in referencing the input array in

snd_pcm_ladspa_allocate_memory(), ladpsa PCM plugin may cause a

segfault at prepare when input and and output channels are different:

#0 0x00007ffff78623ef in snd_pcm_ladspa_allocate_memory (pcm=0x626fa0, pcm=0x626fa0, pcm=0x626fa0, ladspa=0x621ad0) at pcm_ladspa.c:753

#1 snd_pcm_ladspa_init (pcm=0x626fa0) at pcm_ladspa.c:834

#2 0x00007ffff7842946 in snd_pcm_plugin_prepare (pcm=0x626fa0) at pcm_plugin.c:171

#3 0x00007ffff784290f in snd_pcm_plugin_prepare (pcm=0x62c760) at pcm_plugin.c:162

#4 0x000000000040256a in ?? ()

#5 0x00007ffff7222ec5 in __libc_start_main (main=0x401d80,a argc=4, argv=0x7fffffffde28, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fffffffde18) at libc-start.c:287

#6 0x0000000000402fdd in ?? ()

This patch corrects the wrong reference.

Reported-and-tested-by: Andreas Hartmann <mail@andreashartmann.eu>

- pcm: route: Remove bogus ! in snd_config_get_id() checks

There are strange "!" added before snd_config_get_id() return value

checks in a couple of places in pcm_route.c. This essentially makes

the result always positive, making checks bogus.

- pcm: ioplug,extplug: Fix logic errors in type checks

A few error checks are wrongly performed with logical and (&&) instead

of logical or (||), which condition never met.

Reported-by: David Binderman <dcb314@hotmail.com>

- pcm: Fix doxygen for two enums

The doxygen comments were wrong, making doxygen output weird.

- pcm: restore hw params on set latency failed

When method snd_pcm_set_params sets sample rate to 22050 and latency to 50000

to davinci soc driver method snd_pcm_hw_params_set_buffer_time_near fails

and variable params is already changed in the method so the next method

snd_pcm_hw_params_set_period_time_near fails also.

- pcm: add support for new STATUS_EXT ioctl

use STATUS_EXT ioctl if PCM protocol is > 2.0.12

All audio timestamp configuration will be ignored with an

older protocol.

- pcm: add support for get/set_audio_htstamp_config

Enable kernel-side functionality by letting user select what sort of

timestamp it desires

- pcm: add helper functions to query timestamping capabilities

extend support to link, link_estimated and link_synchronized

timestamp. wall-clock is deprecated

- PCM: snd_pcm_xxxx_drain() maybe blocked after suspend and resume

After suspend and resume, the alsa driver is stopped. But if alsa-lib run

into snd_pcm_xxxx_drain(), it need to wait avail >= pcm->stop_threshold,

otherwise, it will not exit the loop, so finally it is blocked at poll() of

snd_pcm_wait_nocheck(pcm, -1).

This patch is to add state check after snd_pcm_wait_nocheck(pcm, -1), if

the state is SND_PCM_STATE_SUSPENDED, then return error.

- pcm: Fix snd_pcm_status() for dmix & co

Fetch the timestamp and other status fields by issuing

snd_pcm_status() for the slave PCM. Also, fill the delay field

properly. This should fix longstanding PA's complaints.

Reported-by: Dan Hordern <danhordern@gmail.com>

- pcm: Don't assert in _snd_pcm_hw_params_internal()

It's no fatal error from sw params, and it's really bad habit to use

assert() and abort the operation as a system library.

- pcm: Remove assert() from snd_pcm_hw_params_slave()

Using assert() for non-fatal error checks is really brain-dead.

These are especially bad, as it hits even in the normal operation with

plugins and some h/w constraints.

Reported-by: Alan Horstmann <gineera@aspect135.co.uk>

- Allow hint for ctl, hwdep, timer and seq

Like pcm and rawmidi, each object parser needs to accept the hint

component. Now a new local function _snd_conf_generic_id() was

introduced to replace each call of "comment" and "type" field checks.

Also, the two existing identical functions for pcm and rawmidi are

removed and the new function is used commonly.

RawMidi API

- Allow hint for ctl, hwdep, timer and seq

Like pcm and rawmidi, each object parser needs to accept the hint

component. Now a new local function _snd_conf_generic_id() was

introduced to replace each call of "comment" and "type" field checks.

Also, the two existing identical functions for pcm and rawmidi are

removed and the new function is used commonly.

Timer API

- fix _GNU_SOURCE handling & header inclusion

The configure script blindly adds -D_GNU_SOURCE to all build settings,

even on non-GNU systems. This isn't too much of a big deal (even if

it uses the wrong variable -- CFLAGS instead of CPPFLAGS), except that

the alsa-lib source itself determines whether to use GNU features when

this is defined (such as versionsort). So when we build on non-glibc

systems, we get build failures like:

src/ucm/parser.c:1268:18: error: 'versionsort' undeclared (first use in this function)

#define SORTFUNC versionsort

^

src/ucm/parser.c:1272:54: note: in expansion of macro 'SORTFUNC'

err = scandir(filename, &namelist, filename_filter, SORTFUNC);

^

The correct way to add these flags is to use the autoconf helper

AC_USE_SYSTEM_EXTENSIONS. Unfortunately, that triggers some more

bugs in the alsa build. This macro adds defines to config.h and

not directly to CPPFLAGS, so it relies on files correctly including

config.h before anything else. A number of alsa files do not do

this leading to build failures. The fix there is to shuffle the

includes around so that the local ones come first.

Topology API

- topology: Add missing prototypes for new functions

The prototypes for some functions that have been added in the recent

changes are missing, which leads to compile warnings. Let's fix.

- topology: remove little endian type from userspace header

Use a generic uint64_t for formats instead of an ABI endian specific

__le64 type.

- topology: Add C API support for PCM

PCM objects can be added by C API. And this is used to create FE DAIs

and DAI links in kernel.

- topology: Add C API support for BE and CC Links.

Adding BE and CC Link support for C API reference. This will be used

to populate the .hw_params element for BE and .params for CC, enabling

us to update already existing DAI Links created by the kernel.

- topology: ABI - Change stream formats to a bitwise flag

The toplogy user space tool will generate this bitwise flag by using

SNDRV_PCM_FORMAT_* exposed by asound.h, and the topology core will copy

this flag when generating DAI streams.

- topology: ABI - Separate PCM & BE/CC link support and bump ABI version to 4

The struct snd_soc_tplg_pcm_dai is renamed to snd_soc_tplg_pcm.

This struct will now be used to handle data related to PCMs

(FE DAI & DAI links). It's not for BE, because BE DAI mappings will be

provided by ACPI/FDT data.

Remove the unused struct snd_soc_tplg_pcm_cfg_caps. We are using

snd_soc_tplg_stream and snd_soc_stream_caps instead.

Define the topology type for BE DAI link: SND_SOC_TPLG_TYPE_BACKEND_LINK.

Define struct snd_soc_tplg_link_config to configure BE & CC links.

Bump ABI version to 4.

- topology: Add API to set a vendor specific version number

This vendor-specific version number is optional. It will be written to

the 'version' field of each block header of the binary toplogy data file.

The vendor driver can check this number for further processing in kernel.

The topology ABI version number is still stored in the 'abi' field of

block headers.

Reviewed-by: Liam Girdwood <liam.r.girdwood@linux.intel.com>

- topology: pcm: Remove unused variables

Fix gcc warnings:

pcm.c: In function ‘tplg_parse_stream_cfg’:

pcm.c:160:6: warning: unused variable ‘ret’ [-Wunused-variable]

int ret;

^

pcm.c: In function ‘split_format’:

pcm.c:267:13: warning: unused variable ‘ret’ [-Wunused-variable]

int i = 0, ret;

^

- topology: parser: Add missing return value to snd_tplg_set_manifest_data()

Spotted by gcc warning:

parser.c: In function ‘snd_tplg_set_manifest_data’:

parser.c:361:1: warning: control reaches end of non-void function [-Wreturn-type]

}

^

- topology: data: Fix wrong size check in tplg_parse_data_hex()

A wrong, uninitialized variable is referred as the size to check in

tplg_parse_data_hex(). Spotted by gcc warning:

data.c: In function ‘tplg_parse_data_hex’:

data.c:228:5: warning: ‘esize’ may be used uninitialized in this function [-Wmaybe-uninitialized]

if (esize > TPLG_MAX_PRIV_SIZE) {

^

data.c:211:12: note: ‘esize’ was declared here

int size, esize, off, num;

^

- topology: ctl: Fix access type checks

Fix the wrong bit-and check by adding parentheses properly:

ctl.c: In function ‘tplg_add_bytes’:

ctl.c:868:22: warning: suggest parentheses around comparison in operand of ‘&’ [-Wparentheses]

if (be->hdr.access & SNDRV_CTL_ELEM_ACCESS_TLV_READWRITE

^

- topology: builder: Fix possibly uninitialized variable in write_elem_block()

When an empty list is passed to write_elem_block(), it may leave

vendor_type uninitialized.

builder.c: In function ‘write_elem_block’:

builder.c:127:8: warning: ‘vendor_type’ may be used uninitialized in this function [-Wmaybe-uninitialized]

ret = write_block_header(tplg, tplg_type, vendor_type,

^

builder.c:114:33: note: ‘vendor_type’ was declared here

int ret, wsize = 0, count = 0, vendor_type;

^

Add an immediate return for count = 0 for avoiding it, and simplify

the code initializing vendor_type without using a one-shot loop.

- topology: A API calls to directly build topology data from templates

Add some new API calls so that applications can directly build topology data

using template structures.

- topology: Add C templates structure for building topology from C programs

Define structures that can be used by applications to directly build topology

data instead of using text files. The application will build up the topology

data by populating the template structures for each object type and then

registering the template with the topology core.

- core: add convenience macros to local.h

Move ARRAY_SIZE() from tplg_local.h to local.h and add container_of()

macro to local.h. Both macros are generic but are initially used by

topology.

- topology: rename OBJECT_TYPE_ to SND_TPLG_TYPE_

rename OBJECT_TYPE_ to SND_TPLG_TYPE_ in preparation for exporting via

a new public API.

- topology: print error prefix on error message.

Let the user know it's an error.

- topology: treat all DAPM controls types the same when copying

Copy all DAPM controls types using the same method.

- topology: update ABI to improve support for different TLV object types.

Currently the TLV topology structure is targeted at only supporting the

DB scale data. This patch extends support for the other TLV types so they

can be easily added at a later stage.

TLV structure is moved to common topology control header since it's a

common field for controls and can be processed in a general way.

Users must set a proper access flag for a control since it's used to decide

if the TLV field is valid and if a TLV callback is needed.

Removed the following fields from topology TLV struct:

- size/count: type can decide the size.

- numid: not needed to initialize TLV for kcontrol.

- data: replaced by the type specific struct.

Added TLV structure to generic control header and removed TLV structure from

mixer control.

- topology: Add support for writing manifest private data.

Allow manifest to contain private data and write this data to file.

- topology: Add element ID so we can look up references by name.

Add support to lookup elements by name. This is in preparation for adding

some new API calls that will allow building topology data using a C API. This

will allow applications to build their own topology data directly.

- topology: fix element object type is switch()

Use the correct type for this object.

- topology: Fix typos

- topology: Fix missing inclusion of ctype.h

Fix a compile warning:

data.c:116:7: warning: implicit declaration of function 'isspace' [-Wimplicit-function-declaration]

- topology: autotools: Add build support for topology core

- topology: Add binary file builder.

Build the binary output file from all the locally parsed objects and elements.

- topology: Add Channel map parser.

Add support for parsing channel map to control registers.

- topology: Add CTL parser

Add support to parse mixers, enums and byte controls.

- topology: Add DAPM object parser

Parse DAPM objects including widgets and graph elements.

- topology: Add private data parser

Parse private data and store for attachment to other objects. Data can come

file or be locally defined as bytes, shorts or words.

- topology: Add operations parser

Parse operations so we can bind them to kcontrols in the kernel.

- topology: Add PCM parser.

Parse PCM configurations and capabilities. These can then be used to define

the capabilities and config for FE DAI links, PCM devices and

codec <-> codec style links.

- topology: Add text section parser.

Parse text lists (like enum values) and store for later attachment

to other objects.

- topology: Add topology core parser.

The topology core parses the high level topology file and calls the

individual object parsers when any new object element is detected at

the high level.

Use Case Manager API

- fix _GNU_SOURCE handling & header inclusion

The configure script blindly adds -D_GNU_SOURCE to all build settings,

even on non-GNU systems. This isn't too much of a big deal (even if

it uses the wrong variable -- CFLAGS instead of CPPFLAGS), except that

the alsa-lib source itself determines whether to use GNU features when

this is defined (such as versionsort). So when we build on non-glibc

systems, we get build failures like:

src/ucm/parser.c:1268:18: error: 'versionsort' undeclared (first use in this function)

#define SORTFUNC versionsort

^

src/ucm/parser.c:1272:54: note: in expansion of macro 'SORTFUNC'

err = scandir(filename, &namelist, filename_filter, SORTFUNC);

^

The correct way to add these flags is to use the autoconf helper

AC_USE_SYSTEM_EXTENSIONS. Unfortunately, that triggers some more

bugs in the alsa build. This macro adds defines to config.h and

not directly to CPPFLAGS, so it relies on files correctly including

config.h before anything else. A number of alsa files do not do

this leading to build failures. The fix there is to shuffle the

includes around so that the local ones come first.

- ucm: docs: Fix doxygen formatting for UCM main page.

Make sure group is defined and lists dipplayed correctly.

- ucm: allow multiple devices in JackHWMute

One jack may mute multiple devices, so let's make JackHWMute a list of

device names instead of just a single device name.

- ucm: improve jack configuration documentation

- ucm: reformat snd_use_case_get() doc

Doxygen doesn't preserve formatting that relies only on indentation.

This fixes it by using lists more liberally.

There are probably more places to fix than just

snd_use_case_get_list(), but I only have motivation for fixing this

function's documentation formatting (the next patch will add some more

content to the function's documentation).

- ucm: document some standard values

add standard value JackDev, JackControl and JackHWMute for speaker

mute control on jack insertion. These values will be applied on

pulseaudio.

/include/Makefile.am

- topology: autotools: Add build support for topology core

/src/Makefile.am

- topology: autotools: Add build support for topology core

Configuration

- move page helpers to common code

If you build with --disable-pcm, the rawmidi code fails to link because

it uses the page_size helper declared in local.h, but the page_* funcs

are in the pcm mmap module. Move these funcs into conf.c so that they

are always available to the rest of the system.

- fix _GNU_SOURCE handling & header inclusion

The configure script blindly adds -D_GNU_SOURCE to all build settings,

even on non-GNU systems. This isn't too much of a big deal (even if

it uses the wrong variable -- CFLAGS instead of CPPFLAGS), except that

the alsa-lib source itself determines whether to use GNU features when

this is defined (such as versionsort). So when we build on non-glibc

systems, we get build failures like:

src/ucm/parser.c:1268:18: error: 'versionsort' undeclared (first use in this function)

#define SORTFUNC versionsort

^

src/ucm/parser.c:1272:54: note: in expansion of macro 'SORTFUNC'

err = scandir(filename, &namelist, filename_filter, SORTFUNC);

^

The correct way to add these flags is to use the autoconf helper

AC_USE_SYSTEM_EXTENSIONS. Unfortunately, that triggers some more

bugs in the alsa build. This macro adds defines to config.h and

not directly to CPPFLAGS, so it relies on files correctly including

config.h before anything else. A number of alsa files do not do

this leading to build failures. The fix there is to shuffle the

includes around so that the local ones come first.

- conf: topology: Add topology file for broadwell audio DSP

- Replace unsafe characters with _ in card name

Otherwise, they get misinterpreted as argument separators

in USB-Audio PCM definitions, and thus prevent SPDIF blacklist entries

from working.

While at it, add my Logitec C910 webcam to the SPDIF blacklist.

- surround41/50.conf: Use chmap syntax for better flexibility

In case the hardware only supports a specific channel map,

this change would allow surround41/50 to select the correct

channel map and channel count in this situation.

- conf/ucm: broadwell-rt286: change to set capture volume and capture device

Set 'Mic Capture Volume' in capture device EnableSequence, to fix

capture no volume by default issue.

Also add JackHWMute Value item to mute onboard dmic while headset

mic is plugged in.

Tested-by: Mark Brown <broonie@kernel.org>

- conf: Add hint descriptions to ctl, hwdep, seq and timer devices

- Allow hint for ctl, hwdep, timer and seq

Like pcm and rawmidi, each object parser needs to accept the hint

component. Now a new local function _snd_conf_generic_id() was

introduced to replace each call of "comment" and "type" field checks.

Also, the two existing identical functions for pcm and rawmidi are

removed and the new function is used commonly.

- conf/ucm: broadwell-rt286: change to use the correct jack kcontrol name

The headset jack has two kctls: "Headphone Jack" and "Mic Jack",

we need switch speaker output according to the former JackControl.

Here correct it.

- USB-audio: Sound Blaster HD iec958 is on device 1

Creative Sound Blaster X-Fi HD uses device 1 for iec958 output.

- conf/ucm: Add Makefile.am for broadwell-rt286 ucm config

- conf/ucm: broadwell-rt286: add ucm config

The configure should apply to all Broadwell-rt286 boards from Intel,

like Wilson Beach SDS Ultrabook.

Documentation

- topology: doxygen: Add doxygen support for topology core.

- docs: Add UCM link to main doxygen page.

- ucm: docs: fix doxygen exclude patch for UCM local header

Kernel Headers

- topology: ABI - Rename dai_elems to pcm_elems in manifest

This field is the number of PCM objects (a pair of FE DAI and DAI link).

- topology: ABI - Change stream formats to a bitwise flag

The toplogy user space tool will generate this bitwise flag by using

SNDRV_PCM_FORMAT_* exposed by asound.h, and the topology core will copy

this flag when generating DAI streams.

- topology: ABI - Use __le32 instead of __u32 in snd_soc_tplg_dapm_widget

This fixes the endianness of the ABI parameters in the struct.

The field 'num_kcontrols' is also extended from 16 bits to 32 bits.

- topology: ABI - Remove unused struct snd_soc_tplg_stream_config

The struct snd_soc_tplg_stream_config is no longer used in the ABI.

We are using snd_soc_tplg_stream instead.

- topology: ABI - Remove tdm_slot & dai_fmt from snd_soc_tplg_stream

These two fields are line parameters for BE/CC links and

should not be from toplogy but from ACPI.

- topology: ABI - Separate PCM & BE/CC link support and bump ABI version to 4

The struct snd_soc_tplg_pcm_dai is renamed to snd_soc_tplg_pcm.

This struct will now be used to handle data related to PCMs

(FE DAI & DAI links). It's not for BE, because BE DAI mappings will be

provided by ACPI/FDT data.

Remove the unused struct snd_soc_tplg_pcm_cfg_caps. We are using

snd_soc_tplg_stream and snd_soc_stream_caps instead.

Define the topology type for BE DAI link: SND_SOC_TPLG_TYPE_BACKEND_LINK.

Define struct snd_soc_tplg_link_config to configure BE & CC links.

Bump ABI version to 4.

- topology: ABI - Add name element to snd_soc_tplg_stream

For codec-codec links, this struct will be mapped to the DAI links's

params, which is struct snd_soc_pcm_stream and it needs a stream name.

- hwdep: add FireWire digi00x/tascam driver support

Linux 4.4 newly support these drivers. Their hardware dependent interfaces

give functionalities to get hardware information, to lock/unlock kernel

streaming and to receive lock status event.

- topology: Add ops support to byte control objects.

Rename the control ops structure to make it more generic so we can use it

with other objects like bytes controls. Add this structure to the byte

control structure.

- topology: update ABI to improve support for different TLV object types.

Currently the TLV topology structure is targeted at only supporting the

DB scale data. This patch extends support for the other TLV types so they

can be easily added at a later stage.

TLV structure is moved to common topology control header since it's a

common field for controls and can be processed in a general way.

Users must set a proper access flag for a control since it's used to decide

if the TLV field is valid and if a TLV callback is needed.

Removed the following fields from topology TLV struct:

- size/count: type can decide the size.

- numid: not needed to initialize TLV for kcontrol.

- data: replaced by the type specific struct.

Added TLV structure to generic control header and removed TLV structure from

mixer control.

- topology: uapi: Add UAPI headers for topology ABI

- Sync include/sound/asound.h with 4.1 kernel

This adds the new ABI for timestamp stuff and minor fixes.

SHM helpers

- support building w/out System V shared memory

Some systems, like Android/Bionic, do not support SysV at all.

Let the configure script detect if the header is available, and

if not, automatically disable the pieces that require it.

Test/Example code

- test: audio_time: show report validity and accuracy

Add checks to show if driver reports valid report and resolution

information. disabled by default

- test: fix audio_time with new get/set audio_tstamp_config

- test/pcm_min: Fix error messages

Fix the wrongly referred error code for error messages from

snd_pcm_writei() and other calls.

- test/pcm: Fix generated values with float PCM format

The float format should be generated [-1.0..1.0].

alsa-utils

Core

- Release v1.1.0

- bat: don't link all binaries with fftw library, add missing header

- configure.ac: check for fftw3/m(sqrtf)/pthread only when BAT is enabled

- build: Do not try to detect cross-compiler

cross compilers are passed via path may not be a gcc based cross

compiler in such cases this check fails and try's to force gcc based

cross compiler detection, This code is a convenience that limits the

build system.

- BAT: Add Makefile and configures

Add Makefile and configures that enable BAT on alsa-utils

- topology: Add command line topology tool to build topology binaries

Add a command line tool that will parse topology text files and convert to the binary

topology data as used by the kernel.

ALSA Control (alsactl)

- alsactl: Manage both save and restore in a single unit

With RemainAfterExit=true, we can manage both save and restore of the

card state in a single unit file. This will fix also the case where

systemd reloads the service; with two individual units, it will

restore the previous state before saving, and may lead to inconsistent

state suddenly.

Also fix alsa-state.service as well to make both start and stop

working in a simpler way.

Bugzilla: https://bugzilla.novell.com/show_bug.cgi?id=929619

- alsactl: Add path condition to alsa-store and alsa-restore services

With alsa-restore.service and alsa-store.service, systemd invokes

alsactl at boot and shutdown times. When this is invoked on a system

without sound cards, it results in an ugly error message from alsact

/usr/sbin/alsactl: save_state:1590: No soundcards found...

return code is "19"

Add ConditionPathExistsGlob checks of /dev/snd/control* devices for

avoiding unnecessary invocations of alsactl on such a system.

Bugzilla: https://bugzilla.suse.com/show_bug.cgi?id=940950

- alsactl: terminate readlink result string

readlink does not guarantee that its result string is nul-terminated.

Instead, increase the buffer by one byte to make sure that we can

add '\0' at the end.

Speaker Test

- speaker-test: fix option ordering

The -c and -s options needed to be provided in a specific order for the -s option to work correctly.

This pulls the speaker option check outside of the option parsing so that all the options have been parsed before checking to see if the parameter to -s is correct.

- speaker-test: Add option to specify signal scale

Allow generated signals (sine and noise) to have a specified signal scale

instead of using hardcoded limits of 80%. This can be handy for debugging, ie

when analysing clipping issues with audio drivers.

alsa-info.sh

- alsa-info: Don't try update when wget isn't available

... otherwise it overwrites a zero size file. Also add a check of

zero size file in the update procedure, too.

alsatplg (topology)

- topology: Add command line topology tool to build topology binaries

Add a command line tool that will parse topology text files and convert to the binary

topology data as used by the kernel.

alsaucm

- alsaucm: Drop localbuild hacks

The include and library paths shouldn't be across the build tree.

The installed alsa-lib must have the UCM support for building the

stuff here in alsa-utils repo correctly.

amixer

- amixer: expand local storage for item name according to kernel code

According to kernel code (snd_ctl_elem_init_enum_names() in

sound/core/control.c), the maximum length of item name is 63 characters

(+ 1 terminator = 64 bytes). But current amixer implementation

uses 40 bytes. This causes name truncation and fail to operation.

This commit fixes this bug by expanding the length of local variables.

- amixer: Don't set only the first item in sset_enum()

aplay/arecord

- aplay: fix VU meter for S24_LE etc formats

When recording or playing back audio in a format where the number of

significant bits is less than the physical width (e.g. S24_LE), the VU

meter code needs to consider the number of significant bits in the samples

rather than the physical sample width (e.g. 24 vs 32 bits). Otherwise the

resulting VU meter display will be far too low and it will just indicate

0% all the time.

Tested with a device supporting the S24_LE format.

- arecord: Remove only regular files

arecord removes a file before writing into it. It's not

appropriate in some cases. For example, if you a pass

a symlink to a file, then the symlink will be removed

while the user expects to record into the symlink's target.

Another case is recording into the device file. Some

modems provide a tty device file as a voice device.

And it's not possible to write into it under root with

arecord, because it removes the device file.

So check the type of a file before writing into it and

remove only regular files.

- aplay: Fix uninterruptible aplay

When aplay is invoked to play from stdin, it can't be terminated by

normal signals like SIGTERM or SIGINT. It's because our signal

handler tries to trap as much as possible while the stalling point is

not in the PCM loop but rather the file I/O.

For fixing this, leave our signal handler once when a signal is

received and snd_pcm_abort() is called. At the next hit, it shall be

handled normally.

- aplay: Fix type for signal flag

A flag used in signal handlers has to be a special atomic type,

volatile sig_atomic_t.

bat (basic audio tester)

- bat: add all headers to noinst_HEADERS

- bat: don't link all binaries with fftw library, add missing header

- BAT: Add missing locale.h header

Missing include became apparent when -O3 was not specified.

Added the header to remove error messages during debug compile.

- BAT: Add man page

Add more information about BAT utility, including design intent,

principles, use mode, hardware connection, options, example and

return value.

- BAT: Use dynamic temp file

Use dynamic temp file instead of fixed temp file to store recorded

wav data, for better security.

- BAT: Change comments and interface of usage()

1. Change comment strings to make the descriptions more clear;

2. Add indent for option lines that have no indent;

3. Use a const string instead of argv[0] as program name.

- BAT: Use colon instead of comma for separation

Use colon instead of comma to separate frequency parameters, for

in several locale comma may be handled as decimal point.

- BAT: Remove redundant message strings

Cutting down 6 message strings to 2, as translators need to work

on each different variant.

- BAT: Add Makefile and configures

Add Makefile and configures that enable BAT on alsa-utils

- BAT: Add spectrum analysis functions

Add functions that detecting signal frequency through spectrum

analyzing.

- BAT: Add converting functions

Add functions that converting audio samples to double data for analysis,

and functions that converting float data to audio samples for playback.

- BAT: Add signal generator

Add function that generates sine waveform through math lib.

The waveform can be used as source for playback or analysis.

- BAT: Add playback and record functions

Add functions as main loop of playback thread and record thread.

The functions access pcm hardware through ALSA APIs.

- BAT: Add common definitions and functions

Add common definitions of macros and data structures; Add functions

that used by multiple components, such as wav file reading and writing.

- BAT: Add initial functions

Add main entrance, command line parsing, parameter initiating and

thread initiating functions for BAT.

alsa-tools

Core

- Release v1.1.0

sb16_csp

- cspctl.1: remove ".LO" macro. This macro don't exist for manpages syntax.

alsa-plugins

Core

- Release v1.1.0

- pph: Fix build with older speex

The previous commit fixed the build of the recent speexdsp, but it

also broke the build with the old library. Actually the only needed

change is the inclusion of speex/speex_types.h instead of

speex/speexdsp_types.h, so it can be easily worked around via the

check in configure script.

Along with this change, make the version check back to 1.2 from

1.2rc2, as 1.2rc1 works fine now again, too.

- pph: include speexdsp_types.h, not speex_types.h

Speexdsp was separated from speex in 1.2rc2. speex_types.h is not

shipped by speexdsp, so alsa-plugins shouldn't use that file. speexdsp

has speexdsp_types.h, which has the same contents as speex_types.h.

speexdsp_types.h is a new file introduced in 1.2rc2, so this change

bumps the minimum supported speexdsp version. The version check in

configure.ac will actually break if speexdsp 1.2 ever gets released,

because pkg-config thinks that "1.2" < "1.2rc2", but I think it's

useful to fail if the installed speexdsp version is 1.2rc1 (which I

believe is very common on current distributions). If a non-rc version

of speexdsp will ever get released, I hope version number 1.2 will be

skipped for this reason. (A non-rc version seems unlikely, since

1.2rc1 was released years ago, so it's pretty likely that the project

is stuck on so called "release candidates" forever...)

A52 Output plugin

- a52: Fix ioplug version ifdef checks

SND_PCM_IOPLUG_VERSION must be checked with 0x10002, not 0x102.

Arcam AV control plugin

- arcam-av: Include sys/select.h for fd_set definition

fixes build errors on non-glibc based systems

arcam-av/arcam_av.c:389:2: error: unknown type name 'fd_set'

Automatic upmix / downmix plugins

- mix: Fix extplug version ifdef checks

SND_PCM_EXTPLUG_VERSION must be checked with 0x10002, not 0x102.

Reported-by: Ethan Grammatikidis <eekee57@fastmail.fm>

Jack PCM plugin

- jack: Fixing a small memory leak

A small memory leak can be observed when using alsa-plugins (jack).

Check the following valgrind log:

...

==1034== 8 bytes in 1 blocks are definitely lost in loss record 7 of 108

==1034== at 0x4027E5A: calloc (in /usr/lib/valgrind/vgpreload_memcheck-x86-linux.so)

==1034== by 0x4035102: snd_pcm_jack_prepare (in /usr/lib/alsa-lib/libasound_module_pcm_jack.so)

==1034== by 0x40D07AB: snd_pcm_ioplug_prepare (pcm_ioplug.c:145)

==1034== by 0x4084961: snd_pcm_prepare (pcm.c:1052)

==1034== by 0x409DDB4: snd_pcm_plugin_prepare (pcm_plugin.c:162)

==1034== by 0x4084961: snd_pcm_prepare (pcm.c:1052)

==1034== by 0x409DDB4: snd_pcm_plugin_prepare (pcm_plugin.c:162)

==1034== by 0x4084961: snd_pcm_prepare (pcm.c:1052)

==1034== by 0x4084A1D: snd_pcm_hw_params (pcm.c:838)

==1034== by 0x4090013: snd_pcm_set_params (pcm.c:8053)

==1034== by 0x80486EB: main (in /root/pcm_min_ok)

...

==1034== LEAK SUMMARY:

==1034== definitely lost: 8 bytes in 1 blocks

==1034== indirectly lost: 0 bytes in 0 blocks

==1034== possibly lost: 31,311 bytes in 1,630 blocks

==1034== still reachable: 5,619 bytes in 24 blocks

==1034== suppressed: 0 bytes in 0 blocks

...

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