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1134 commits

Author SHA1 Message Date
Takashi Iwai
d81d6940ca Fix bugs in perm option 
Fixed silly bugs in perm option.
 2005-05-19 15:14:05 +00:00
Takashi Iwai
4e1723f9a5 More strict permission for IPC shm and sem 
Use more strict permission for IPC shm and sem, too.
The permission follows to the value of ipc_perm config option, as
default 0600.
 2005-05-19 14:36:04 +00:00
Takashi Iwai
13c7364997 Revert the shmget permission 
Oops, a part of another patch was merged accidentally.  Reverted.
 2005-05-19 14:20:07 +00:00
Takashi Iwai
5227c7e170 Fix possible noises and optimization with dmix 
dmix transfers data in asynchronously so that it doesn't write on the
last active period.  This will allow the arbitrary buffer size in
future, too.

The hwsync call to slave is removed from commit and hwsync callbacks.
This hack was added to fix the noisy output (typically on xmms/bmp)
but it doesn't happen any more.  Now the hwsync behavior is as same as
on 1.0.8 (i.e. hwsync is called only when slowptr option is set).
 2005-05-19 14:14:04 +00:00
Takashi Iwai
1cd04dba82 Add perm option 
Added "perm" option to file plugin to specify the file permission.
Changed the default permission to 0600.
 2005-05-19 13:59:43 +00:00
Takashi Iwai
d5b9823447 Fix snd_pcm_wait() for multiple pollfd's 
Fixed snd_pcm_wait() to handle multiple pollfd's.
 2005-05-18 13:28:06 +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
e61d385993 Add protocl version check 
- Added protocl version check.  The caller of snd_pcm_{io|ext}plug_create()
  must fill version field with SND_PCM_{IO|EXT}PLUG_VERSION beforehand.

- Added poll_descriptors and poll_descriptors_count callbacks for ioplug.
 2005-05-18 10:47:52 +00:00
Takashi Iwai
97010dbfdb Use snd_pcm_generic_t and its callbacks 
Use snd_pcm_generic_t and its callbacks.
 2005-05-18 10:46:03 +00:00
Takashi Iwai
842b573424 Add poll_descriptors and poll_descriptors_count callbacks 
Added poll_descriptors and poll_descriptors_count callbacks for multiple
poll_fd's.
 2005-05-18 10:45:06 +00:00
Takashi Iwai
cf4f4bc9c4 Fix drain of dmix without data 
Fixed the drain of dmix plugin without any data.
It should return immediately.
 2005-05-17 15:36:18 +00:00
Takashi Iwai
51313cb2dd Remove pause and fix timer initialization in prepare 
- Removed broken pause implementations.
- Fixed the timer initialization in prepare callback so that poll
  works again after prepare.
 2005-05-17 09:28:29 +00:00
Takashi Iwai
e76bbd74d7 Set up pcm->info properly 
Set up pcm->info properly for ioplug according to the avaialbe callbacks.
 2005-05-17 09:27:17 +00:00
Takashi Iwai
3092edabf2 Propagate pcm->info 
Propate pcm->info bit flags from the slave PCM in refine.
This will fix the bug indicating bogus pause/resume capabilities.
 2005-05-17 09:26:34 +00:00
Takashi Iwai
48bff53b36 Check timer version for read-block workaround 
Check the timer protocl version whether to use poll for a workaround
of read-block problems.
 2005-05-15 14:48:19 +00:00
Takashi Iwai
1aaf4a50af Fix blocking during draining in dmix 
Fix the blocking during draining in dmix plugin due to ioctl
conflicts (bug #1074).  This is a temporary workaround.
 2005-05-15 13:54:00 +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
3403d9e622 Fix partial commit in drain 
Fix the partial commit in draining with rate plugin.
 2005-05-13 12:37:25 +00:00
Takashi Iwai
3047f8fa5a Fix possible problems of playback drain with rate plugin 
Fixed the possible problems of playback drain with rate plugin
when partial data remains and not committed before.
 2005-05-12 13:34:59 +00:00
Jaroslav Kysela
f658e3e148 remove broken *_step initialization (caused by previous Fedora 4 patch) 
Thanks to Abramo for notice.
 2005-05-10 07:05:47 +00:00
Jaroslav Kysela
412fb54e0d Fedora 4 patch - gcc4 fixes 2005-05-06 14:09:17 +00:00
Takashi Iwai
467d69c5bc Fix CPU hog with combination of rate plugin 
Fix CPU hog with some apps (e.g. artsd) when rate plugin is used
together with dmix (or possible hw).
 2005-04-22 16:36:13 +00:00
Takashi Iwai
56b3974439 Show verbose errors for invalid sw_params 
Show verbose errors (when $LIBASOUND_DEBUG is set) for some invalid sw_params.
 2005-04-20 14:31:33 +00:00
Takashi Iwai
0f0fea7450 Fix ATTRIBUTE_UNUSED 
Remove invalid ATTRIBUTE_UNUSED and add it to necessary places.
 2005-04-20 14:30:45 +00:00
Takashi Iwai
87ec7df91d Read $LIBASOUND_DEBUG as integer 
Read $LIBASOUND_DEBUG as integer, 1 = hw_params dump, 2 = assert.
 2005-04-20 14:26:49 +00:00
Takashi Iwai
cac370de25 Fix segfault 
Fix segfault (occuring when buffer/period sizes are aligned).
 2005-04-19 16:11:26 +00:00
Takashi Iwai
9a0f2817bb Fix timer read in non-TREAD mode 
Fix timer read in non-TREAD mode.  (the struct is different.)
 2005-04-15 09:22:48 +00:00
Takashi Iwai
bdabcb9679 Check timer protocol number for direct plugins 
Check timer protocol number before enabling TREAD mode for direct plugins.
 2005-04-14 15:29:06 +00:00
Takashi Iwai
c9fbe951a9 Suppress verbose debug messages 
Suppress verbose debug messages in hw_params_set[min|max|minmax] errors.
 2005-04-14 15:27:47 +00:00
Takashi Iwai
b579a024db Add verbose hw_params debugging 
Added the verbose hw_params dump for debugging.
The verbose error message is shown with the current hw_params dump
when $LIBASOUND_DEBUG is set.
 2005-04-14 14:22:13 +00:00
Jaroslav Kysela
f65d9f3108 Added snd_pcm_hw_params_set_rate_resample function 
- snd_pcm_hw_params_set_rate_resample()
- snd_pcm_hw_params_get_rate_resample()
 2005-04-12 12:09:55 +00:00
Takashi Iwai
72ad0e9ae7 Fix more CPU hang-up bugs in dmix 
- Fix CPU hang-up during snd_pcm_drain()
  A new internal function snd_pcm_wait_nocheck() to force to call poll().

- Clean up, fix status() callback of dmix
 2005-04-11 10:03:28 +00:00
Takashi Iwai
c915659538 Fix compile warning 
Fix compile warning (forgot return 0).
 2005-04-06 13:08:28 +00:00
Takashi Iwai
999609f7e0 Compile warning fixes 
Trivial compile warning fixes.
 2005-04-05 15:53:24 +00:00
Takashi Iwai
aa89f27de4 More fixes for 100% CPU hang with dmix 
More fixes for 100% CPU hang-up problem with dmix.

- Clear timer queues properly when XRUN happens.
- Don't check XRUN when the stream isn't really running.
- Do hwsync properly for the delayed start state.
 2005-04-05 15:50:15 +00:00
Takashi Iwai
e5b91844bf Fix channel_info callbacks of hooks, file and plug plugins 
Fixed channel_info callbacks of hooks, file and plug plugins (BTS #1034).
snd_pcm_generic_channel_info_slave() is added.
 2005-04-05 15:48:01 +00:00
Takashi Iwai
1889920a43 Fix segfault with downsampling 
Fix segfault in the initialization for downsampling.
 2005-03-31 15:24:40 +00:00
Takashi Iwai
a0a440dcf4 Stop timer at XRUN 
Stop PCM timer at XRUN.
 2005-03-31 15:23:20 +00:00
Takashi Iwai
5c91ee386d Check PCM format aliases 
Check PCM format alias strings (e.g. "S16") as acceptable PCM formats.
 2005-03-29 16:34:31 +00:00
Takashi Iwai
9207804912 Generic architecture support 
Support dmix on generic architectures without atomic operations but
using a semaphore to avoid concurrent accesses.  This is less effective
than atomic operations but should work on every system.
 2005-03-29 14:13:04 +00:00
Takashi Iwai
6a6a70ffe7 Do hwsync of slave PCM on dmix 
Call hwsync of slave PCM on snd_pcm_hwsync() over dmix.
This reduces ocasional output noises, typically seen in xmms and bmp with
multi-threading on SMP/HT systems.

Disabled slowptr of default dmix definition again.
 2005-03-29 14:10:16 +00:00
Takashi Iwai
5e325ea18b Delayed start for dmix 
Introducing a private state for the delayed start of PCM stream.
This problem occurs when the rate plugin doesn't feed the data
properly before triggering START.  This results in weird problems,
e.g. an inifinte loop of artsd eating 100% CPU time.

To solve this problem, the state is marked as "pending" when no
data appears at the trigger, and the stream is started later at
the mmap commit.
 2005-03-29 14:06:00 +00:00
Takashi Iwai
c5c9b2c8bb Fix noises on exapnd 
Fixes noise on rate expansion (bug #1018).
 2005-03-29 13:52:41 +00:00
Takashi Iwai
e64cab565e Fix noises in rate exapnsion 
Fixed noises in rate exapnsion.
 2005-03-24 20:28:56 +00:00
Takashi Iwai
248d0b285c Fix compilation with gcc-4.0 
Fixed compilation with gcc-4.0
 2005-03-22 18:49:07 +00:00
Takashi Iwai
dab2b58e0e Fix resume of dmix, dsnoop and dshare plugins 
Fix the resume of dmix, dsnoop and dshare plugins.

[This replaces the timer mode with TREAD mode, and may trigger Oops
 with the older kernel...]
 2005-03-15 11:39:51 +00:00
Takashi Iwai
8003e03b50 Small code clean up 
Small code clean up for readability.
 2005-03-09 12:00:37 +00:00
Takashi Iwai
73008debc3 Add snd_pcm_parse_control_id() 
Added a new function snd_pcm_parse_control_id() for the user controls.
This can be used in external plugins, too.
 2005-03-09 11:57:54 +00:00
Takashi Iwai
227441b2c8 More doxygen comments 
Added more doxygen comments in pcm_extplug and pcm_ioplug codes.
 2005-03-09 11:54:58 +00:00
Clemens Ladisch
85171640fa fix the file plugin 
Call snd_pcm_file_hw_params instead of snd_pcm_generic_hw_params
to prevent a crash when the file plugin is used.
 2005-02-28 08:25:12 +00:00