- 27 5月, 2009 2 次提交
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由 Takashi Iwai 提交于
The PCM hw_ptr jiffies check results sometimes in problems when a hardware doesn't give smooth hw_ptr updates. So far, au88x0 and some other drivers appear not working due to this strict check. However, this check is a nice debug tool, and the capability should be still kept. Hence, we disable this check now as default unless the user enables it by setting the xrun_debug mode to the specific stream via a proc file. Signed-off-by: NTakashi Iwai <tiwai@suse.de>
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由 Takashi Iwai 提交于
The hw_ptr_jiffies has to be reset properly to avoid the invalid check of jiffies delta in snd_pcm_update_hw_ptr*() functions. Especailly this patch fixes the bogus jiffies check after the puase and resume. This patch is a modified version of the original patch by Jaroslav. Signed-off-by: NTakashi Iwai <tiwai@suse.de>
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- 28 4月, 2009 1 次提交
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由 Takashi Iwai 提交于
The hardware devices with SNDRV_PCM_INFO_BATCH flag can't give the precise current position. And such hardwares have often big FIFO in addition to the ring buffer, and it screws up the jiffies check in pcm_lib.c. This patch adds a simple check of info flag so that the driver skips the jiffies check in snd_pcm_period_elapsed() when BATCH flag is set. Signed-off-by: NTakashi Iwai <tiwai@suse.de>
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- 10 4月, 2009 1 次提交
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由 Jaroslav Kysela 提交于
Some drivers like Intel8x0 or Intel HDA are broken for some hardware variants. This patch adds more strict buffer position checks based on jiffies when internal hw_ptr is updated. Enable xrun_debug to see mangling of wrong positions. As a side effect, the hw_ptr interrupt update routine might do slightly better job when many interrupts are lost. Signed-off-by: NJaroslav Kysela <perex@perex.cz>
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- 20 3月, 2009 1 次提交
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由 Takashi Iwai 提交于
Make the boundary checks a bit safer. These caese are rare or theoretically won't happen, but nothing bad to keep the checks safer... Signed-off-by: NTakashi Iwai <tiwai@suse.de>
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- 19 3月, 2009 4 次提交
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由 Takashi Iwai 提交于
When the hw_ptr_interrupt reaches the boundary, it must check whether the hw_base was already lapped and corret the delta value appropriately. Also, rebasing the hw_ptr needs a correction because buffer_size isn't always aligned to period_size. Signed-off-by: NTakashi Iwai <tiwai@suse.de>
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由 Takashi Iwai 提交于
Always reset the invalind hw_ptr position returned by the pointer callback. The behavior should be consitent independently from the debug option. Also, add the printk_ratelimit() check to avoid flooding debug prints. Signed-off-by: NTakashi Iwai <tiwai@suse.de>
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由 Takashi Iwai 提交于
Remove unnecessary explicit inlininig of internal functions. Let compiler optimize. Signed-off-by: NTakashi Iwai <tiwai@suse.de>
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由 Takashi Iwai 提交于
Fix a typo in error messages; forgotten after a copy&paste error. Signed-off-by: NTakashi Iwai <tiwai@suse.de>
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- 09 3月, 2009 1 次提交
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由 Takashi Iwai 提交于
Clean up and improve snd_pcm_update_hw_ptr*() functions. snd_pcm_update_hw_ptr() tries to detect the unexpected hwptr jumps more strictly to avoid the position mess-up, which often results in the bad quality I/O with pulseaudio. The hw-ptr skip error messages are printed when xrun proc is set to non-zero. Signed-off-by: NTakashi Iwai <tiwai@suse.de>
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- 16 10月, 2008 1 次提交
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由 Randy Dunlap 提交于
Add kernel-doc function short descriptions to sound/core functions that are missing this short description. Mostly this involves moving some of the function description onto the @funcname line. Also correct a few variable names and fix other kernel-doc notation. Signed-off-by: NRandy Dunlap <randy.dunlap@oracle.com> Signed-off-by: NTakashi Iwai <tiwai@suse.de>
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- 13 8月, 2008 1 次提交
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由 Takashi Iwai 提交于
Kill snd_assert() in sound/core/*, either removed or replaced with if () with snd_BUG_ON(). Signed-off-by: NTakashi Iwai <tiwai@suse.de> Signed-off-by: NJaroslav Kysela <perex@perex.cz>
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- 01 2月, 2008 10 次提交
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由 Jaroslav Kysela 提交于
Change semantics for SNDRV_PCM_TSTAMP_MMAP. Doing timestamping only in the interrupt handler might cause that hw_ptr is not related to actual timestamp. With this change, grab timestamp at every hw_ptr update to have always valid timestamp + ring buffer position pair. With this change, SNDRV_PCM_TSTAMP_MMAP was renamed to SNDRV_PCM_TSTAMP_ENABLE. It's no regression (I think). Signed-off-by: NJaroslav Kysela <perex@perex.cz>
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由 Takashi Iwai 提交于
This header file exists only for some hacks to adapt alsa-driver tree. It's useless for building in the kernel. Let's move a few lines in it to sound/core.h and remove it. With this patch, sound/driver.h isn't removed but has just a single compile warning to include it. This should be really killed in future. Signed-off-by: NTakashi Iwai <tiwai@suse.de> Signed-off-by: NJaroslav Kysela <perex@perex.cz>
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由 Takashi Iwai 提交于
The 'tick' in PCM is set (again) via sw_params. And, nobody uses this feature at all except for a command line option of aplay. (This is literally 'nobody', as I checked alsa-lib API calls in all programs in major distros.) Above all, if we need finer wake-ups for the position update, it's basically an issue that the driver should solve, not tuned by each application. Signed-off-by: NTakashi Iwai <tiwai@suse.de> Signed-off-by: NJaroslav Kysela <perex@perex.cz>
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由 Takashi Iwai 提交于
Introduce a common helper function for snd_pcm_lib_read and snd_pcm_lib_write for cleaning up the code. Signed-off-by: NTakashi Iwai <tiwai@suse.de> Signed-off-by: NJaroslav Kysela <perex@perex.cz>
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由 Takashi Iwai 提交于
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: NTakashi Iwai <tiwai@suse.de> Signed-off-by: NJaroslav Kysela <perex@perex.cz>
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由 Takashi Iwai 提交于
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: NTakashi Iwai <tiwai@suse.de> Signed-off-by: NJaroslav Kysela <perex@perex.cz>
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由 Marcin Ślusarz 提交于
pcm_lib: fix sparse warning about different signedness Signed-off-by: NMarcin Ślusarz <marcin.slusarz@gmail.com> Signed-off-by: NTakashi Iwai <tiwai@suse.de> Signed-off-by: NJaroslav Kysela <perex@perex.cz>
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由 Marcin Ślusarz 提交于
pcm_lib: fix sparse warning about shadowing 'n' symbol Signed-off-by: NMarcin Ślusarz <marcin.slusarz@gmail.com> Signed-off-by: NTakashi Iwai <tiwai@suse.de> Signed-off-by: NJaroslav Kysela <perex@perex.cz>
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由 Jaroslav Kysela 提交于
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: NJaroslav Kysela <perex@perex.cz>
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由 Takashi Iwai 提交于
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: NTakashi Iwai <tiwai@suse.de> Signed-off-by: NJaroslav Kysela <perex@perex.cz>
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- 16 10月, 2007 1 次提交
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由 Jaroslav Kysela 提交于
Signed-off-by: NJaroslav Kysela <perex@perex.cz>
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- 09 2月, 2007 1 次提交
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由 Takashi Iwai 提交于
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: NTakashi Iwai <tiwai@suse.de> Signed-off-by: NJaroslav Kysela <perex@suse.cz>
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- 20 12月, 2006 1 次提交
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由 Clemens Ladisch 提交于
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: NClemens Ladisch <clemens@ladisch.de> Signed-off-by: NJaroslav Kysela <perex@suse.cz>
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- 23 6月, 2006 3 次提交
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由 Takashi Iwai 提交于
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: NTakashi Iwai <tiwai@suse.de>
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由 Takashi Iwai 提交于
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: NTakashi Iwai <tiwai@suse.de>
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由 Takashi Iwai 提交于
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: NTakashi Iwai <tiwai@suse.de>
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- 28 4月, 2006 1 次提交
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由 Jaroslav Kysela 提交于
This patch makes the XRUN (overrun/underrun) notification code optional. Signed-off-by: NJaroslav Kysela <perex@suse.cz>
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- 31 3月, 2006 1 次提交
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由 Takashi Iwai 提交于
- 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: NTakashi Iwai <tiwai@suse.de>
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- 03 1月, 2006 2 次提交
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由 Takashi Iwai 提交于
Modules: PCM Midlevel Fixed wrong or supreflous snd_assert()'s. Signed-off-by: NTakashi Iwai <tiwai@suse.de>
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由 Takashi Iwai 提交于
Modules: PCM Midlevel Remove xxx_t typedefs from the core PCM codes. Signed-off-by: NTakashi Iwai <tiwai@suse.de>
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- 04 11月, 2005 2 次提交
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由 Takashi Iwai 提交于
Modules: Documentation,PCM Midlevel,Timer Midlevel,ALSA Core Use the standard getnstimeofday() function instead of ALSA's own one. Signed-off-by: NTakashi Iwai <tiwai@suse.de>
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由 Takashi Iwai 提交于
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: NTakashi Iwai <tiwai@suse.de>
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- 12 9月, 2005 1 次提交
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由 Takashi Iwai 提交于
PCM Midlevel,RawMidi Midlevel Fix DocBook warnings. Signed-off-by: NTakashi Iwai <tiwai@suse.de>
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- 30 8月, 2005 2 次提交
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由 Clemens Ladisch 提交于
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: NClemens Ladisch <clemens@ladisch.de>
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由 Karsten Wiese 提交于
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: NKarsten Wiese <annabellesgarden@yahoo.de> Signed-off-by: NTakashi Iwai <tiwai@suse.de>
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- 29 5月, 2005 2 次提交
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由 Takashi Iwai 提交于
PCM Midlevel Make docproc happy by moving '#if 0' before comments. Signed-off-by: NTakashi Iwai <tiwai@suse.de>
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由 Adrian Bunk 提交于
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: NAdrian Bunk <bunk@stusta.de> Signed-off-by: NTakashi Iwai <tiwai@suse.de>
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- 17 4月, 2005 1 次提交
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由 Linus Torvalds 提交于
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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