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* saner FASYNC handling on file closeAl Viro2008-11-011-1/+0Star
| | | | | | | | | | | | | | As it is, all instances of ->release() for files that have ->fasync() need to remember to evict file from fasync lists; forgetting that creates a hole and we actually have a bunch that *does* forget. So let's keep our lives simple - let __fput() check FASYNC in file->f_flags and call ->fasync() there if it's been set. And lose that crap in ->release() instances - leaving it there is still valid, but we don't have to bother anymore. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* ALSA: kernel docs: fix sound/core/ kernel-docRandy Dunlap2008-10-161-16/+8Star
| | | | | | | | | | | 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: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
* ALSA: add dummy function to support shared mmap in nommu Blackfin archCliff Cai2008-09-041-0/+13
| | | | | | | | Cc: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Cliff Cai <cliff.cai@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@perex.cz>
* ALSA: Kill snd_assert() in sound/core/*Takashi Iwai2008-08-131-63/+64
| | | | | | | | Kill snd_assert() in sound/core/*, either removed or replaced with if () with snd_BUG_ON(). Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@perex.cz>
* ALSA: remove unneeded power_mutex lock in snd_pcm_dropTakashi Iwai2008-09-251-10/+3Star
| | | | | | | The power_mutex lock in snd_pcm_drop may cause a possible deadlock chain, and above all, it's unneeded. Let's get rid of it. Signed-off-by: Takashi Iwai <tiwai@suse.de>
* Revert "pcm_native.c: remove unused label"Linus Torvalds2008-08-071-0/+1
| | | | | | | | | | | | | | | | | | This reverts commit 680db0136e0778a0d7e025af7572c6a8d82279e2. The label is actually used, but hidden behind CONFIG_SND_DEBUG and the horrible snd_assert() macro. That macro could probably be improved to be along the lines of #define snd_assert(expr, args...) do { if ((void)(expr),0) { args; } } while (0) or similar to make sure that we always both evaluate 'expr' and parse 'args', but while gcc should optimize it all away, I'm too lazy to really verify that. So I'll just admit defeat and will continue to live with the annoying warning. Noted-by: Robert P. J. Day <rpjday@crashcourse.ca> Signed-off-by: Linus "Grr.." Torvalds
* pcm_native.c: remove unused labelLinus Torvalds2008-08-071-1/+0Star
| | | | | | | | | This fixes the warning sound/core/pcm_native.c: In function 'snd_pcm_fasync': sound/core/pcm_native.c:3262: warning: label 'out' defined but not used Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* snd/PCM: fasync BKL pushdownJonathan Corbet2008-07-021-2/+6
| | | | | | | Chances are this is unneeded, but the code is twisty enough that it is hard to tell. Signed-off-by: Jonathan Corbet <corbet@lwn.net>
* latency.c: use QoS infrastructureMark Gross2008-02-051-4/+7
| | | | | | | | | | | | | Replace latency.c use with pm_qos_params use. Signed-off-by: mark gross <mgross@linux.intel.com> Cc: "John W. Linville" <linville@tuxdriver.com> Cc: Len Brown <lenb@kernel.org> Cc: Jaroslav Kysela <perex@suse.cz> Cc: Takashi Iwai <tiwai@suse.de> Cc: Arjan van de Ven <arjan@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* [ALSA] PCM interface - rename SNDRV_PCM_TSTAMP_MMAP to SNDRV_PCM_TSTAMP_ENABLEJaroslav Kysela2008-01-311-1/+7
| | | | | | | | | | | 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: Jaroslav Kysela <perex@perex.cz>
* [ALSA] Remove sound/driver.hTakashi Iwai2008-01-311-1/+0Star
| | | | | | | | | | | | 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: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@perex.cz>
* [ALSA] Remove PCM sleep_min and tickTakashi Iwai2008-01-311-30/+0Star
| | | | | | | | | | | | | 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: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@perex.cz>
* [ALSA] Remove PCM xfer_align sw paramsTakashi Iwai2008-01-311-13/+0Star
| | | | | | | | | | | | | 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>
* [ALSA] PCM core - remove SNDRV_PCM_TSTAMP_MMAP condition in snd_pcm_status()Jaroslav Kysela2008-01-311-7/+2Star
| | | | | | | | | The condition caused that the returned ring buffer position does not match with timestamp when SNDRV_PCM_TSTAMP_MMAP mode was enabled. Removing condition makes unified behaviour and interrupt based timestamp can be accessed via PCM_IOCTL_SYNC_PTR or mmaped status area. Signed-off-by: Jaroslav Kysela <perex@perex.cz>
* [ALSA] PCM - added back TSTAMP ioctl for PCM (for old alsa-lib binaries)Jaroslav Kysela2008-01-311-0/+2
| | | | Signed-off-by: Jaroslav Kysela <perex@perex.cz>
* [ALSA] pcm_native: fix sparse warning about shadowing 'state' symbolMarcin Ślusarz2008-01-311-3/+3
| | | | | | | | pcm_native: fix sparse warning about shadowing 'state' 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>
* [ALSA] alsa: nopageNick Piggin2008-01-311-34/+25Star
| | | | | | | | | Convert ALSA from nopage to fault. Switch from OOM to SIGBUS if the resource is not available. Signed-off-by: Nick Piggin <npiggin@suse.de> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@perex.cz>
* [ALSA] Use posix clock monotonic for PCM and timer timestampsJaroslav Kysela2008-01-311-5/+20
| | | | | | | | | 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>
* [ALSA] Fix PCM MMAP time-stamp modeTakashi Iwai2008-01-311-1/+1
| | | | | | | | | | 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>
* [ALSA] Changed Jaroslav Kysela's e-mail from perex@suse.cz to perex@perex.czJaroslav Kysela2007-10-161-1/+1
| | | | Signed-off-by: Jaroslav Kysela <perex@perex.cz>
* [ALSA] pcm: merge rates[] from pcm_misc.c and pcm_native.cClemens Ladisch2007-10-161-1/+7
| | | | | | | | Merge the rates[] arrays from pcm_misc.c and pcm_native.c because they are both the same. Signed-off-by: Clemens Ladisch <clemens@ladisch.de> Signed-off-by: Jaroslav Kysela <perex@suse.cz>
* [ALSA] Fix substream to check in PCM drainTakashi Iwai2007-07-201-1/+1
| | | | | | | | | | The check of a substream in snd_pcm_drain() might not be always correct since runtime can point a different substream (although the PCM state of each linked substream should be same, in theory). This patch fixes it. Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@suse.cz>
* [ALSA] pcm_native: lockdep warning when launching jackFrederik Deweerdt2007-05-111-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When launching 'jackd -d alsa', lockdep issues the following warning: [39701.405086] ============================================= [39701.405093] [ INFO: possible recursive locking detected ] [39701.405107] 2.6.21-rc5-mm4 #2 [39701.405109] --------------------------------------------- [39701.405112] jackd/17366 is trying to acquire lock: [39701.405114] (&substream->self_group.lock){....}, at: [<c034d3c0>] snd_pcm_action_group+0x90/0x240 [39701.405131] [39701.405131] but task is already holding lock: [39701.405134] (&substream->self_group.lock){....}, at: [<c034d63f>] snd_pcm_action_lock_irq+0x3f/0xb0 [39701.405141] [39701.405142] other info that might help us debug this: [39701.405145] 3 locks held by jackd/17366: [39701.405147] #0: (snd_pcm_link_rwlock){....}, at: [<c034d627>] snd_pcm_action_lock_irq+0x27/0xb0 [39701.405155] #1: (&substream->group->lock){....}, at: [<c034d638>] snd_pcm_action_lock_irq+0x38/0xb0 [39701.405163] #2: (&substream->self_group.lock){....}, at: [<c034d63f>] snd_pcm_action_lock_irq+0x3f/0xb0 [39701.405171] [39701.405171] stack backtrace: [39701.405174] [<c0103b8a>] show_trace_log_lvl+0x1a/0x30 [39701.405179] [<c0104912>] show_trace+0x12/0x20 [39701.405183] [<c01049c6>] dump_stack+0x16/0x20 [39701.405187] [<c013b980>] __lock_acquire+0xbd0/0x1040 [39701.405193] [<c013be60>] lock_acquire+0x70/0x90 [39701.405197] [<c0407846>] _spin_lock+0x36/0x50 [39701.405203] [<c034d3c0>] snd_pcm_action_group+0x90/0x240 [39701.405207] [<c034d653>] snd_pcm_action_lock_irq+0x53/0xb0 [39701.405211] [<c035046f>] snd_pcm_common_ioctl1+0x35f/0xfb0 [39701.405215] [<c0351544>] snd_pcm_playback_ioctl1+0x34/0x420 [39701.405219] [<c03519f3>] snd_pcm_playback_ioctl+0x43/0x50 [39701.405223] [<c017ecc8>] do_ioctl+0x28/0x80 [39701.405229] [<c017ed77>] vfs_ioctl+0x57/0x290 [39701.405233] [<c017efe9>] sys_ioctl+0x39/0x60 [39701.405237] [<c0102bf4>] sysenter_past_esp+0x5d/0x99 [39701.405240] ======================= The attached lockdep annotation silences the warning. Signed-off-by: Frederik Deweerdt <frederik.deweerdt@gmail.com> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@suse.cz>
* [ALSA] Add snd_pcm_group_for_each_entry() for code cleanupTakashi Iwai2007-05-111-17/+10Star
| | | | | | | | | Added a new macro snd_pcm_group_for_each_entry() just for code cleanup. Old macros, snd_pcm_group_for_each() and snd_pcm_group_substream_entry(), are removed. Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@suse.cz>
* header cleaning: don't include smp_lock.h when not usedRandy Dunlap2007-05-081-1/+0Star
| | | | | | | | | | | | Remove includes of <linux/smp_lock.h> where it is not used/needed. Suggested by Al Viro. Builds cleanly on x86_64, i386, alpha, ia64, powerpc, sparc, sparc64, and arm (all 59 defconfigs). Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* [PATCH] mark struct file_operations const 9Arjan van de Ven2007-02-121-1/+1
| | | | | | | | | | | Many struct file_operations in the kernel can be "const". Marking them const moves these to the .rodata section, which avoids false sharing with potential dirty data. In addition it'll catch accidental writes at compile time to these shared resources. Signed-off-by: Arjan van de Ven <arjan@linux.intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* [PATCH] struct path: convert soundJosef Sipek2006-12-081-1/+1
| | | | | | Signed-off-by: Josef Sipek <jsipek@fsl.cs.sunysb.edu> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] mm: incorrect VM_FAULT_OOM returns from driversNick Piggin2006-12-071-5/+5
| | | | | | | | | | | | | Some drivers are returning OOM when it is not in response to a memory shortage. Signed-off-by: Nick Piggin <npiggin@suse.de> Cc: Dave Airlie <airlied@linux.ie> Cc: Jaroslav Kysela <perex@suse.cz> Cc: Takashi Iwai <tiwai@suse.de> Cc: Greg KH <greg@kroah.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [ALSA] Fix hang-up at disconnection of usb-audioTakashi Iwai2006-11-281-2/+4
| | | | | | | | Fix hang-up at disconnection of usb-audio devices while accessing PCM. Don't handle PCM operations any more after shutdown flag is set. Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@suse.cz>
* [PATCH] Remove readv/writev methods and use aio_read/aio_write insteadBadari Pulavarty2006-10-011-20/+20
| | | | | | | | | | This patch removes readv() and writev() methods and replaces them with aio_read()/aio_write() methods. Signed-off-by: Badari Pulavarty <pbadari@us.ibm.com> Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] maximum latency tracking: ALSA supportTakashi Iwai2006-10-011-1/+22
| | | | | | | | | | | | | | | | | | | | | | Add maximum latency tracking to the ALSA subsystem for PCM playback. In ALSA, the playback application controls the buffer size and thus indirectly the period of latency that it can deal with. This patch uses 75% of the total available latency as threshold to announce to the latency subsystem; While 75% is a crude heuristic it's a quite reasonable one; the remaining 25% can be used for all driver processing for the next samples which is also proportional to the size of the buffer. With ogg123 a latency setting of about 4msec was seen (at 44Khz), while with the "play" command a much longer maximum tolerable latency was seen. Other, more multimedia oriented players as well as games, will have a lot smaller buffers to allow better synchronization and those will actually get into the latency domains where there is impact on the power management rules. Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Arjan van de Ven <arjan@linux.intel.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [ALSA] Fix control/status mmap with shared PCM substreamTakashi Iwai2006-09-231-39/+10Star
| | | | | | | | | | | | The flag to avoid 32bit-incompatible mmap for control/status records should be outside the pcm substream instance since a substream can be shared among multiple opens. Now it's flagged in pcm_file list that is directly assigned to file->private_data. Also, removed snd_pcm_add_file() and remove_file() functions and substream.files field that are not really used in the code. Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@suse.cz>
* [ALSA] Remove bogus check of mmap_count in snd_pcm_release()Takashi Iwai2006-06-221-1/+0Star
| | | | | | | Removed a bogus check of mmap_count in snd_pcm_release(). This is no longer true for the shared streams. Signed-off-by: Takashi Iwai <tiwai@suse.de>
* [ALSA] Fix pcm-draining of capture stream in PCM middle layerTakashi Iwai2006-06-221-2/+0Star
| | | | | | | | Fix the draining of PCM capture stream in the PCM middle layer. snd_pcm_drain() ignored capture streams, but it should change the state to SNDRV_PCM_DRAINING. Signed-off-by: Takashi Iwai <tiwai@suse.de>
* [ALSA] Fix mmap_count with O_APPEND opened streamsTakashi Iwai2006-06-221-5/+5
| | | | | | | | Move mmap_count to snd_pcm_substream instead of runtime struct so that multiplly opened substreams via O_APPEND can be handled correctly. Signed-off-by: Takashi Iwai <tiwai@suse.de>
* [ALSA] Add O_APPEND flag support to PCMTakashi Iwai2006-06-221-26/+55
| | | | | | | | 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>
* [ALSA] Move OSS-specific hw_params helper to snd-pcm-oss moduleTakashi Iwai2006-06-221-1/+20
| | | | | | | 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>
* [ALSA] Fix Oops of PCM OSS emulationTakashi Iwai2006-04-121-2/+4
| | | | | | | | Modules: PCM Midlevel,ALSA<-OSS emulation Fix Oops of PCM OSS emulation occuring when multiple playback is used. Signed-off-by: Takashi Iwai <tiwai@suse.de>
* [ALSA] Clean up PCM codes (take 2)Takashi Iwai2006-03-311-51/+57
| | | | | | | | | - 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>
* [ALSA] Tiny clean up of PCM codesTakashi Iwai2006-03-311-26/+13Star
| | | | | | | - Make snd_pcm_prepare() static - Clean up snd_pcm_kernel_*_ioctl() functions, reduce exports Signed-off-by: Takashi Iwai <tiwai@suse.de>
* [ALSA] Cleanup unused argument for snd_power_wait()Takashi Iwai2006-03-311-5/+5
| | | | | | Removed the unused file argument of snd_power_wait(). Signed-off-by: Takashi Iwai <tiwai@suse.de>
* [ALSA] pcm - Move PAUSE ioctl to common ioctl handlerTakashi Iwai2006-03-221-8/+8
| | | | | | | | | Modules: PCM Midlevel Moved PAUSE ioctl to the common ioctl handler. A capture stream may issue PAUSE, too. Signed-off-by: Takashi Iwai <tiwai@suse.de>
* [ALSA] semaphore -> mutex (core part)Ingo Molnar2006-03-221-6/+6
| | | | | | | | | | | Semaphore to mutex conversion. The conversion was generated via scripts, and the result was validated automatically via a script as well. Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
* [ALSA] pcm - Make the support of old API selectableTakashi Iwai2006-01-031-0/+6
| | | | | | | | Modules: ALSA Core,PCM Midlevel Make the support of old API selectable via config option. Signed-off-by: Takashi Iwai <tiwai@suse.de>
* [ALSA] dynamic minors (3/6): store device-specific object pointers dynamicallyClemens Ladisch2006-01-031-13/+27
| | | | | | | | | | Instead of storing the pointers to the device-specific structures in an array, put them into the struct snd_minor, and look them up dynamically. This makes the device type modules independent of the minor number encoding. Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
* [ALSA] dynamic minors (1/6): store device type in struct snd_minorClemens Ladisch2006-01-031-32/+21Star
| | | | | | | | | | Instead of a comment string, store the device type in the snd_minor structure. This makes snd_minor more flexible, and has the nice side effect that we don't need anymore to create a separate snd_minor template for registering a device but can pass the file_operations directly to snd_register_device(). Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
* [ALSA] pcm - NULL check in snd_pcm_suspend*()Takashi Iwai2006-01-031-0/+6
| | | | | | | | | Modules: PCM Midlevel Add NULL check in snd_pcm_suspend*() so that the caller doesn't have to do it by itself. Signed-off-by: Takashi Iwai <tiwai@suse.de>
* [ALSA] Remove xxx_t typedefs: PCMTakashi Iwai2006-01-031-291/+332
| | | | | | | | Modules: PCM Midlevel Remove xxx_t typedefs from the core PCM codes. Signed-off-by: Takashi Iwai <tiwai@suse.de>
* [ALSA] fix improper CONFIG_SND_MAJOR usageClemens Ladisch2005-11-041-1/+0Star
| | | | | | | | Modules: HWDEP Midlevel,PCM Midlevel,RawMidi Midlevel,ALSA Core Replace usage of CONFIG_SND_MAJOR with snd_major, where appropriate. Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
* [ALSA] Use getnstimeofday()Takashi Iwai2005-11-041-10/+4Star
| | | | | | | | 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>
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