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2008-01-31[ALSA] PCM - clean up snd_pcm_lib_read/writeTakashi Iwai1-140/+76
Introduce a common helper function for snd_pcm_lib_read and snd_pcm_lib_write for cleaning up the code. Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-01-31[ALSA] Remove PCM xfer_align sw paramsTakashi Iwai1-14/+4
The xfer_align sw_params parameter has never been used in a sane manner, and no one understands what this does exactly. The current implementation looks also buggy because it allows write of shorter size than xfer_align. So, if you do partial writes, the write isn't actually aligned at all. Removing this parameter will make some pcm_lib_* code more readable (and less buggy). Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-01-31[ALSA] Fix PCM write blockingTakashi Iwai1-2/+5
The snd_pcm_lib_write1() may block in some weird condition: - the stream isn't started - avail_min is big (e.g. period size) - partial write up to buffer_size - avail_min The patch fixes this invalid blocking problem. Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-01-31[ALSA] pcm_lib: fix sparse warning about different signednessMarcin Ślusarz1-1/+1
pcm_lib: fix sparse warning about different signedness Signed-off-by: Marcin Ślusarz <marcin.slusarz@gmail.com> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-01-31[ALSA] pcm_lib: fix sparse warning about shadowing 'n' symbolMarcin Ślusarz1-6/+10
pcm_lib: fix sparse warning about shadowing 'n' symbol Signed-off-by: Marcin Ślusarz <marcin.slusarz@gmail.com> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-01-31[ALSA] Use posix clock monotonic for PCM and timer timestampsJaroslav Kysela1-1/+1
We need an accurate and continuous (monotonic) time sources to do accurate synchronization among more timing sources. This patch allows to enable monotonic timestamps for ALSA PCM devices and enables monotonic timestamps for ALSA timer devices. Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-01-31[ALSA] Fix PCM MMAP time-stamp modeTakashi Iwai1-2/+2
When MMAP time-stamp mode is given, it's supposed to update the time-stamp only at period boundary. However, it currently updates at each status call so this is just useless. The patch fixes this misbehavior. Also it fixes the wrong check of tstamp_mode (don't use bit-and for enum). Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2007-10-16[ALSA] Changed Jaroslav Kysela's e-mail from perex@suse.cz to perex@perex.czJaroslav Kysela1-1/+1
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2007-02-09[ALSA] Fix possible invalid memory access in PCM coreTakashi Iwai1-0/+5
snd_internval_list() may access invalid memory in the case count = 0 is given. It shouldn't be passed, but it'd better to make the code a bit more robust. Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@suse.cz>
2006-12-20[ALSA] pcm core: fix silence_start calculationsClemens Ladisch1-5/+3
The case where silence_size < boundary was broken because different parts of the snd_pcm_playback_silence() function disagreed about whether silence_start should point to the start or to the end of the buffer part to be silenced. This patch changes the code to always use to the start, which also simplifies several calculations. Signed-off-by: Clemens Ladisch <clemens@ladisch.de> Signed-off-by: Jaroslav Kysela <perex@suse.cz>
2006-06-22[ALSA] Add O_APPEND flag support to PCMTakashi Iwai1-4/+4
Added O_APPEND flag support to PCM to enable shared substreams among multiple processes. This mechanism is used by dmix and dsnoop plugins. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2006-06-22[ALSA] Clean up ugly hacks in pcm_lib.cTakashi Iwai1-44/+26
Clean up ugly hacks for sync with alsa-lib code in pcm_lib.c. Also, optimize snd_pcm_hw_params_choose() with a loop. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2006-06-22[ALSA] Move OSS-specific hw_params helper to snd-pcm-oss moduleTakashi Iwai1-595/+54
Move EXPORT_SYMBOL()s to places adjacent to functions/variables. Also move OSS-specific hw_params helper functions to pcm_oss.c. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2006-04-27[ALSA] PCM core - introduce CONFIG_SND_PCM_XRUN_DEBUGJaroslav Kysela1-3/+3
This patch makes the XRUN (overrun/underrun) notification code optional. Signed-off-by: Jaroslav Kysela <perex@suse.cz>
2006-03-31[ALSA] Clean up PCM codes (take 2)Takashi Iwai1-49/+0
- Clean up initialization and destruction of substream instance Now snd_pcm_open_substream() alone does most initialization jobs. Add pcm_release callback for cleaning up at snd_pcm_release_substream() - Tidy up PCM oss code Signed-off-by: Takashi Iwai <tiwai@suse.de>
2006-01-03[ALSA] pcm - Fix wrong assertsTakashi Iwai1-4/+3
Modules: PCM Midlevel Fixed wrong or supreflous snd_assert()'s. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2006-01-03[ALSA] Remove xxx_t typedefs: PCMTakashi Iwai1-161/+159
Modules: PCM Midlevel Remove xxx_t typedefs from the core PCM codes. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2005-11-04[ALSA] Use getnstimeofday()Takashi Iwai1-1/+1
Modules: Documentation,PCM Midlevel,Timer Midlevel,ALSA Core Use the standard getnstimeofday() function instead of ALSA's own one. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2005-11-04[ALSA] Remove snd_runtime_check() macroTakashi Iwai1-2/+1
Remove snd_runtime_check() macro. This macro worsens the readability of codes. They should be either normal if() or removable asserts. Also, the assert displays stack-dump, instead of only the last caller pointer. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2005-09-12[ALSA] Fix DocBook warningsTakashi Iwai1-4/+113
PCM Midlevel,RawMidi Midlevel Fix DocBook warnings. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2005-08-30[ALSA] make local objects staticClemens Ladisch1-2/+2
Memalloc module,PCM Midlevel,Timer Midlevel,GUS Library,AC97 Codec ALI5451 driver,RME9652 driver Make some functions/variables that are used in only one file static. Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
2005-08-30[ALSA] ALSA's struct _snd_pcm_substream: Obsolete open_flagKarsten Wiese1-2/+14
PCM Midlevel,ALSA<-OSS emulation,USB USX2Y This patch removes open_flag from struct _snd_pcm_substream. All of its uses are substituted by querying struct _snd_pcm_substream's member ffile instead. Signed-off-by: Karsten Wiese <annabellesgarden@yahoo.de> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2005-05-29[ALSA] Make docproc happyTakashi Iwai1-3/+3
PCM Midlevel Make docproc happy by moving '#if 0' before comments. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2005-05-29[ALSA] sound/core/: possible cleanupsAdrian Bunk1-23/+29
PCM Midlevel,ALSA Core,Timer Midlevel,ALSA sequencer,Virtual Midi This patch contains the following possible cleanups: - make needlessly global code static - #if 0 the following unused global functions - remove the following unneeded EXPORT_SYMBOL's Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2005-04-16Linux-2.6.12-rc2Linus Torvalds1-0/+2612
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
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