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169 commits

Author SHA1 Message Date
Jaroslav Kysela
8aaccc9484 Implemented snd_pcm_sw_params_(set|get)_period_event for interrupt wakeup like behaviour 
Actually, PCM timer is used as source for poll(). It might be optimized
in the kernel code later.
 2008-05-09 16:02:02 +02:00
Jaroslav Kysela
c88672d86f implemented snd_pcm_rewindable() and snd_pcm_forwardable(), removed can_rewind and can_forward 2008-04-21 12:46:50 +02:00
Jaroslav Kysela
82af1df465 added snd_pcm_hw_params_is_monotonic/can_forward/can_rewind functions 2008-04-11 14:11:04 +02:00
Jaroslav Kysela
d555b15914 fix compilation in pcm/pcm_hw.c - monotonic clock 2008-04-10 09:08:08 +02:00
Takashi Iwai
91726ddf83 Fix the build with old glibc 
The old systems don't support CLOCK_MONOTONIC although clock_gettime() API
itself exists.  This causes compile errors.
 2008-03-07 14:35:25 +01:00
Clemens Ladisch
0e8a259914 check availability of CLOCK_MONOTONIC 
Use monotonic timestamps only after checking that CLOCK_MONOTONIC is
actually supported by the C library.
 2008-01-14 08:51:45 +01:00
Clemens Ladisch
07e1341548 pcm hw plugin: use TSTAMP only with old drivers 
There is no need to call the TSTAMP ioctl with newer driver versions.
 2008-01-14 08:50:46 +01:00
Clemens Ladisch
6f751a923d pcm hw plugin: fix TTSTAMP version check 
Fix the version check that determines the availability of the TTSTAMP
ioctl.
 2008-01-14 08:50:18 +01:00
Jaroslav Kysela
2c1318803f Impemented snd_pcm_htimestamp() function. 2008-01-09 13:50:45 +01:00
Jaroslav Kysela
309a274454 Add support for monotonic timestamps 2008-01-09 11:13:34 +01:00
Takashi Iwai
679cea4125 Remove sleep_min and tick 
The sleep_min and tick are removed features from the kernel.
This patch cleans the corresponding part in alsa-lib.
 2008-01-08 18:36:18 +01:00
Takashi Iwai
cf15e49d84 Remove PCM xfer_align 
The PCM xfer_align is a removed feature from the kernel.
This patch cleans up the corresponding part in alsa-lib.
 2008-01-08 18:35:29 +01:00
Jaroslav Kysela
7562320e3b Added SNDRV_PCM_IOCTL_TTSTAMP and updated PCM API version to 2.0.9 2007-12-17 09:04:42 +01:00
Jaroslav Kysela
d25e281230 Changed Jaroslav Kysela's e-mail from perex@suse.cz to perex@perex.cz 2007-10-15 10:24:55 +02:00
Takashi Iwai
c7e1676dcd Don't set PCM pointer at error in snd_pcm_hw_open() 
snd_pcm_hw_open() may set a non-NULL to pcmp even if it returns an error.
Some codes like dmix expects it's NULL, and cause the double free().
 2007-08-06 16:09:27 +02:00
Clemens Ladisch
fca29a6172 remove unused variables 
Remove some unused variables that the compiler warned about.
 2007-07-13 12:44:43 +02:00
Takashi Iwai
4cdb17c601 Split mmap-emulation code from hw layer 
Move out mmap-emulation code from hw layer to its own plugin.
This cleans up the mess in pcm_hw.c.
 2007-07-11 17:44:09 +02:00
Takashi Iwai
845d9222b2 fix mmap emulation bug of recording doesn't work 
From: Roy Huang <royhuang9@gmail.com>

Record doesn't work if enabling mmap emulation and rate conversion
needed, this patch fix this bug.
 2007-07-05 12:15:16 +02:00
Takashi Iwai
8048321c76 More better fix for linked start/stop 
Instead of link_fd, more generic callback link_slaves is introduced.
This is called for linking the slave streams as the source to the
given master stream.
 2007-03-13 02:52:33 +01:00
Takashi Iwai
eafb7ae5d8 Use O_APPEND mode with dmix & co plugins 
Use O_APPEND mode (only if available) with dmix, dsnoop and dshare
plugins.  Using this mode, the plugin requires no resource server
any more.
 2006-04-28 15:55:32 +02:00
Takashi Iwai
a2ee8e20e8 Fix 32/64bit problem with multi plugin 
Fix the problems of multi plugin with 32bit apps on 64bit kernel.
The forward/backward of hw plugin are fixed, too.
 2006-04-06 18:55:59 +02:00
Takashi Iwai
18a6132a66 Fix PCM without control/status mmap 
Fix the update of appl_ptr via mmap_commit when control/status structs
are not mmapped (e.g. 32bit compatible mode on 64bit kernel).
 2006-03-29 09:32:18 +00:00
Takashi Iwai
38a3aa096c Fix restoration of PCM open mode 
The original PCM open mode was lost by the change of default non-blocking
open.  The patch fix the restoration of the original open mode.
 2006-03-20 11:22:23 +00:00
Takashi Iwai
90112fff1e Add restriction parameters to pcm hw layer 
Add restriction parameters to pcm hw layer.

The PCM hw has optional parameters, format, rate and channels, to restrict
the configuration.  This is useful for definition of surround slave PCMs,
for example.
 2006-03-17 18:09:07 +00:00
Clemens Ladisch
09f598e57c allow changing of device directory path 
Add configuration options to change the default device path from the
default /dev/snd.  This is useful for embedded systems that do not want
subdirectories in /dev.
 2006-02-27 10:03:19 +00:00
Clemens Ladisch
4433248bf3 remove superfluous free() checks 
free() correctly handles NULL pointers, so we can omit explicit checks
for that condition.
 2006-02-27 09:58:32 +00:00
Clemens Ladisch
45850439b3 Do not abort in snd_xxx_close() functions 
Remove several memory leaks by not aborting prematurely from a
snd_xxx_close() function when some operation fails.
This can happen when a USB device was unplugged.
 2006-02-27 09:54:57 +00:00
Takashi Iwai
67868a886f Fix check of nonblock option 
Fix the check of nonblock option for all hw layer.
Instead of passing in asound.conf, check the option in snd_pcm_hw_open()
so that the nonblock option is referred in the case of "type hw ..." style
definition, too.
 2006-02-17 20:49:21 +00:00
Takashi Iwai
3d0e3e2517 Add "nonblock" option for hw layer 
Added a new "nonblock" option for hw layer.  This controls the non-blocking
"open" mode as default.

This option is set to TRUE as the default configuration.  If the old behavior
is preferred, set "defaults.pcm.nonblock" to 0 in /etc/asound.conf.
 2006-01-13 11:52:01 +00:00
Jaroslav Kysela
bdfbbed5ca pcm dump() routines update: use spaces to indent texts 2005-12-11 08:24:13 +00:00
Takashi Iwai
087184b0f9 Fix doxygen documents 
Fix the warnings of doxygen parsing.
Add some missing documentation.
 2005-05-24 14:14:28 +00:00
Takashi Iwai
dd37bb20ee Move poll_* callbacks to fast_ops 
Moved poll_* callbacks to fast_ops.
These callbacks may be called frequently indeed.
 2005-05-23 09:03:16 +00:00
Takashi Iwai
a6d3b9e4e0 Remove poll_ask callback 
Removed poll_ask callbacks.
poll_ask function is merged to poll_descriptors callbacks.
 2005-05-18 10:50:09 +00:00
Takashi Iwai
10557ca6b9 Fix playback start with sync_ptr mode 
Fix by Istvan Varadi <ivaradi@gmail.com>

- start the playback with snd_pcm_hw_start failed with -EPIPE, because
 some pointers were not updated. I attached a patch for alsa-lib 1.0.8,
 in which sync_ptr is called before SNDRV_PCM_IOCTL_START. It seems to
 solve the problem, though I don't know alsa-lib enough to be sure that
 this is the right solution...
 2005-05-13 14:14:10 +00:00
Takashi Iwai
809e31561a Initialize structs for ioctls 
Initialize the argument structs before calling ioctls to make
valgrind happy.
 2005-02-24 20:57:56 +00:00
Takashi Iwai
f9b9015245 Fix resmgr support 
Call normal open() before trying with res_open_device().
snd_open_device() is defined to do this procedure.
 2005-02-11 16:35:24 +00:00
Takashi Iwai
77c925a71f Add resmgr support 
Added the support for resmgr.  A new configure option --with-resmgr is added
to enable the resmgr support.
 2005-01-26 10:50:28 +00:00
Jaroslav Kysela
a5831c7300 The stream linking problem for pcm_multi.c should be fixed now 
- extended link_fd callback
- added snd_pcm_generic_link2()
- added _snd_pcm_link_descriptors()
 2005-01-20 18:37:13 +00:00
Jaroslav Kysela
836987aa99 improved stream linking and plugin code cleanups 
- added link/unlink/link_fd fast_ops callbacks
- moved code from snd_pcm_link to pcm_hw.c
- moved "empty" routines pointing to slave to pcm_generic.c
- introduced snd_pcm_generic_t
 2005-01-20 15:07:51 +00:00
Takashi Iwai
2b54677fdb Change error message handling 
Change the handling of non-fatal errors.  Now the non-fatal error
messages are not shown in stderr and no assert() as default.  The
behavior can be changed with LIBASOUND_DEBUG environment variable.
 2004-12-21 14:11:00 +00:00
Jaroslav Kysela
457b8777ab fix for capture for case when status/control structures are not mmaped 2004-11-16 16:03:01 +00:00
Jaroslav Kysela
6987a8555c appl_ptr sync fix when status/control structures are not mmaped 
The prepare and reset ioctls can modify appl_ptr, thus the user space
must take modified appl_ptr from driver.
 2004-11-16 15:05:49 +00:00
Jaroslav Kysela
090fa69b51 Added check_std_error to avoid extra verbosity 2004-09-28 10:54:05 +00:00
Jaroslav Kysela
509e30494f compilation fix 2004-05-24 18:44:04 +00:00
Jaroslav Kysela
eafb492512 - added SYNC_PTR ioctl support for pcm_hw plugin 2004-05-22 10:14:32 +00:00
Takashi Iwai
494f3e66e4 fixed the handling of EINTR in read/write. 
EINTR can be returned during ACPI suspend/resume.
 2004-04-15 12:22:26 +00:00
Jaroslav Kysela
7c201b510a - added poll_ask callback to mangle avail_min (rate_plugin as example) 
- added mangling of avail_min to rate_plugin
- added poll_fd_count variable
- FIXME: move poll_revents callback to fast_ops
 2004-03-17 11:48:14 +00:00
Jaroslav Kysela
0acc42d0d7 VERSION_MAX == 2.0.5 2004-03-05 08:05:21 +00:00
Jaroslav Kysela
62ad89e954 Fixed warning 2004-02-01 19:23:41 +00:00
Takashi Iwai
7716fd1e3d fixes by Art Haas <ahaas@airmail.net>: 
rewritten with C99 struct initialization style.
 2003-07-25 17:02:00 +00:00