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2009-12-25ALSA: Fix indentation in pcm_native.cGuennadi Liakhovetski1-4/+4
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2009-12-22ALSA: sound/core/pcm_timer.c: use lib/gcd.cFlorian Fainelli2-16/+2
Make sound/core/pcm_timer.c use lib/gcd.c Signed-off-by: Florian Fainelli <florian@openwrt.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2009-12-21ALSA: fix incorrect rounding direction in snd_interval_ratnum()Krzysztof Helt1-2/+2
The direction of rounding is incorrect in the snd_interval_ratnum() It was detected with following parameters (sb8 driver playing 8kHz stereo file): - num is always 1000000 - requested frequency rate is from 7999 to 7999 (single frequency) The first loop calculates div_down(num, freq->min) which is 125. Thus, a frequency range's minimum value is 1000000 / 125 = 8000 Hz. The second loop calculates div_up(num, freq->max) which is 126 The frequency range's maximum value is 1000000 / 126 = 7936 Hz. The range maximum is lower than the range minimum so the function fails due to empty result range. Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2009-12-12Merge branch 'for-linus' of ↵Linus Torvalds1-2/+13
git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6: ALSA: hda - Overwrite pin config on intel DG45ID board. intelhdmi - dont power off HDA link ALSA: hrtimer - Fix lock-up ALSA: intelhdmi - add channel mapping for typical configurations ALSA: intelhdmi - channel mapping applies to Pin ALSA: intelhdmi - accept DisplayPort pin ALSA: hda - show HBR(High Bit Rate) pin cap in procfs ALSA: hda - Fix LED GPIO setup for HP laptops with IDT codecs ASoC: Fix build of OMAP sound drivers ALSA: opti93x: fix irq releasing if the irq cannot be allocated
2009-12-11ALSA: hrtimer - Fix lock-upTakashi Iwai1-2/+13
The timer stop callback can be called from snd_timer_interrupt(), which is called from the hrtimer callback. Since hrtimer_cancel() waits for the callback completion, this eventually results in a lock-up. This patch fixes the problem by just toggling a flag at stop callback and call hrtimer_cancel() later. Reported-and-tested-by: Wojtek Zabolotny <W.Zabolotny@elka.pw.edu.pl> Cc: <stable@kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2009-12-10vfs: Implement proper O_SYNC semanticsChristoph Hellwig1-1/+1
While Linux provided an O_SYNC flag basically since day 1, it took until Linux 2.4.0-test12pre2 to actually get it implemented for filesystems, since that day we had generic_osync_around with only minor changes and the great "For now, when the user asks for O_SYNC, we'll actually give O_DSYNC" comment. This patch intends to actually give us real O_SYNC semantics in addition to the O_DSYNC semantics. After Jan's O_SYNC patches which are required before this patch it's actually surprisingly simple, we just need to figure out when to set the datasync flag to vfs_fsync_range and when not. This patch renames the existing O_SYNC flag to O_DSYNC while keeping it's numerical value to keep binary compatibility, and adds a new real O_SYNC flag. To guarantee backwards compatiblity it is defined as expanding to both the O_DSYNC and the new additional binary flag (__O_SYNC) to make sure we are backwards-compatible when compiled against the new headers. This also means that all places that don't care about the differences can just check O_DSYNC and get the right behaviour for O_SYNC, too - only places that actuall care need to check __O_SYNC in addition. Drivers and network filesystems have been updated in a fail safe way to always do the full sync magic if O_DSYNC is set. The few places setting O_SYNC for lower layers are kept that way for now to stay failsafe. We enforce that O_DSYNC is set when __O_SYNC is set early in the open path to make sure we always get these sane options. Note that parisc really screwed up their headers as they already define a O_DSYNC that has always been a no-op. We try to repair it by using it for the new O_DSYNC and redefinining O_SYNC to send both the traditional O_SYNC numerical value _and_ the O_DSYNC one. Cc: Richard Henderson <rth@twiddle.net> Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Cc: Grant Grundler <grundler@parisc-linux.org> Cc: "David S. Miller" <davem@davemloft.net> Cc: Ingo Molnar <mingo@elte.hu> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Andreas Dilger <adilger@sun.com> Acked-by: Trond Myklebust <Trond.Myklebust@netapp.com> Acked-by: Kyle McMartin <kyle@mcmartin.ca> Acked-by: Ulrich Drepper <drepper@redhat.com> Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Jan Kara <jack@suse.cz>
2009-12-04Merge branch 'topic/misc' into for-linusTakashi Iwai1-1/+1
2009-12-01Merge branch 'topic/pcm-dma-fix' into topic/core-changeTakashi Iwai1-24/+59
2009-12-01Merge branch 'topic/beep-rename' into topic/core-changeTakashi Iwai2-2/+12
2009-11-27ALSA: pcm - fix page conversion on non-coherent PPC archTakashi Iwai1-0/+10
The non-cohernet PPC arch doesn't give the correct address by a simple virt_to_page() for pages allocated via dma_alloc_coherent(). This patch adds a hack to fix the conversion similarly like MIPS. Note that this doesn't fix perfectly: the pages should be marked with proper pgprot value. This will be done in a future implementation like the conversion to dma_mmap_coherent(). Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2009-11-27ALSA: pcm - fix page conversion on non-coherent MIPS archTakashi Iwai1-0/+4
The non-coherent MIPS arch doesn't give the correct address by a simple virt_to_page() for pages allocated via dma_alloc_coherent(). Original patch by Wu Zhangjin <wuzj@lemote.com>. [Ralf mentioned: "The origins of this patch go back far further. The oldest patch I could find which is a superset of this was written by Atsushi Nemoto and various incarnations of it have been sumitted to and reject by me a number of times through the years."] A proper check of the buffer allocation type was added to avoid the wrong conversion. Note that this doesn't fix perfectly: the pages should be marked with proper pgprot value. This will be done in a future implementation like the conversion to dma_mmap_coherent(). Acked-by: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2009-11-26ALSA: pcm - define snd_pcm_default_page_ops()Takashi Iwai1-8/+12
Add a helper (inline) function as the default page ops. Any hacks wrt the page address conversion will be applied in this function. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2009-11-26ALSA: pcm - Use dma_mmap_coherent() if availableTakashi Iwai1-16/+33
Use dma_mmap_coherent() for mmapping the buffers allocated via dma_alloc_coherent() if available. Currently, only ARM has this function, so we do temporarily have an ifdef pcm_native.c. This should be handled better globally in future. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2009-11-18ALSA: remove unnecessary null checkDan Carpenter1-1/+1
This function is only called from snd_ctl_ioctl() and the file parameter can never be null so there is no need to check it here. We dereference file at the start of the function: struct snd_card *card = file->card; and it confuses static checkers to dereference a pointer before checking it. Signed-off-by: Dan Carpenter <error27@gmail.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2009-11-14Merge branch 'fix/misc' into topic/miscTakashi Iwai1-22/+20
2009-11-10sound: rawmidi: record a substream's owner processClemens Ladisch1-0/+9
Record the pid of the task that opened a RawMIDI substream. Signed-off-by: Clemens Ladisch <clemens@ladisch.de> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2009-11-10sound: pcm: record a substream's owner processClemens Ladisch1-0/+4
Record the pid of the task that opened a PCM substream. For sound cards with hardware mixing, this allows determining which process is associated with a specific substream's volume control. Signed-off-by: Clemens Ladisch <clemens@ladisch.de> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2009-11-10sound: rawmidi: fix opened substreams countClemens Ladisch1-4/+2
The substream_opened field is to count the number of opened substreams, not the number of times that any substreams have been opened. Furthermore, all substreams being opened does not imply that the next open would fail, due to the possibility of O_APPEND. With this wrong check, opening a substream multiple times would succeed only if the device had more unopened substreams. Signed-off-by: Clemens Ladisch <clemens@ladisch.de> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2009-11-10Merge branch 'topic/ctl-pid-lock' into topic/core-changeTakashi Iwai3-6/+5
2009-11-10sound: rawmidi: fix MIDI device O_APPEND error handlingClemens Ladisch1-12/+7
Commit 9a1b64caac82aa02cb74587ffc798e6f42c6170a in 2.6.30 broke the error handling code in rawmidi_open_priv(). If only the output substream of a RawMIDI device has been opened and if this device is then opened with O_RDWR | O_APPEND and if the initialization of the input substream fails (either because of low memory or because the device driver's open callback fails), then the runtime structure of the already open output substream will be freed and all following writes through the first handle will cause snd_rawmidi_write() to use the NULL runtime pointer. Signed-off-by: Clemens Ladisch <clemens@ladisch.de> Cc: <stable@kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2009-11-10sound: rawmidi: fix checking of O_APPEND when opening MIDI deviceClemens Ladisch1-1/+2
Commit 9a1b64caac82aa02cb74587ffc798e6f42c6170a in 2.6.30 dropped the check that a substream must already have been opened with O_APPEND to be able to open it a second time. This would make it possible for a substream to be switched to append mode, which would mean that non-atomic writes would fail unexpectedly. Signed-off-by: Clemens Ladisch <clemens@ladisch.de> Cc: <stable@kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2009-11-10sound: rawmidi: fix double init when opening MIDI device with O_APPENDClemens Ladisch1-10/+12
Commit 9a1b64caac82aa02cb74587ffc798e6f42c6170a in 2.6.30 moved the substream initialization code to where it would be executed every time the substream is opened. This had the consequence that any further opening would drop and leak the data in the existing buffer, and that the device driver's open callback would be called multiple times, unexpectedly. Signed-off-by: Clemens Ladisch <clemens@ladisch.de> Cc: <stable@kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2009-11-06control: use reference-counted pidClemens Ladisch3-4/+5
Instead of storing the PID number, take a reference to the task's pid structure. This protects against duplicates due to PID overflows, and using pid_vnr() ensures that the PID returned by snd_ctl_elem_info() is correct as seen from the current namespace. Signed-off-by: Clemens Ladisch <clemens@ladisch.de> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2009-11-06control: remove snd_konctrol_volatile::owner_pid fieldClemens Ladisch1-3/+1
We do not need to save the ID of the process that locked a control because that information is already available in the owner's file data. Signed-off-by: Clemens Ladisch <clemens@ladisch.de> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2009-11-05ALSA: rename "PC Speaker" controls to "Speaker"Jaroslav Kysela1-0/+1
To unify control names, rename "PC Speaker" to "Speaker" for PPC ALSA drivers. Signed-off-by: Jaroslav Kysela <perex@perex.cz> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2009-11-05ALSA: rename "PC Speaker" and "PC Beep" controls to "Beep"Jaroslav Kysela1-1/+2
To avoid confusion in control names for the standard analog PC Beep generator using a small Internal PC Speaker, rename all related "PC Speaker" and "PC Beep" controls to "Beep" only. This name is more universal and can be also used on more platforms without confusion. Introduce also "Internal Speaker" in ControlNames.txt for systems with full-featured build-in internal speaker. Signed-off-by: Jaroslav Kysela <perex@perex.cz> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2009-11-01Merge branch 'fix/misc' into topic/miscTakashi Iwai2-59/+27
2009-10-30ALSA: sound: Move dereference after NULL test and drop unnecessary NULL testsJulia Lawall1-2/+3
In pcm.c, if the NULL test on pcm is needed, then the dereference should be after the NULL test. In dummy.c and ali5451.c, the context of the calls to snd_card_dummy_new_mixer and snd_ali_free_voice show that dummy and pvoice, respectively cannot be NULL. A simplified version of the semantic match that detects this problem is as follows (http://coccinelle.lip6.fr/): // <smpl> @match exists@ expression x, E; identifier fld; @@ * x->fld ... when != \(x = E\|&x\) * x == NULL // </smpl> Signed-off-by: Julia Lawall <julia@diku.dk> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2009-10-11ALSA: snd_dma_pointer workaround for chipsets with buggy DMAKrzysztof Helt1-1/+9
The chipsets with the isa_dma_bridge_buggy set do not stop DMA during DMA counter reads. The DMA counter is read in two 8-bit read steps on x86 platform. Sometimes, such reads happen during higher byte change so the lower byte is already decremented (rolled over) but the higher byte is not. It introduces an error that position is moved 256 bytes ahead of the true position. Thus, the next DMA position read can return a lower value then the previous read. If the DMA position is decreased (reversed) the ALSA subsystem is tricked into the playback underrun error and resets the playback. It results in a "pop" during a playback. Work around the issue by reading the counter twice and choosing a higher value. Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2009-09-27const: mark struct vm_struct_operationsAlexey Dobriyan1-4/+4
* mark struct vm_area_struct::vm_ops as const * mark vm_ops in AGP code But leave TTM code alone, something is fishy there with global vm_ops being used. Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-09-21ALSA: pcm - Simplify snd_pcm_drain() implementationTakashi Iwai1-53/+20
Simplify snd_pcm_drain() implementation and avoid unneeded array- allocation for waitqueues. Instead, one waitqueue is used for the first draining stream, and wait until all streams finished. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2009-09-10Merge branch 'topic/tlv-minmax' into for-linusTakashi Iwai1-2/+6
* topic/tlv-minmax: ALSA: usb-audio - Correct bogus volume dB information ALSA: usb-audio - Use the new TLV_DB_MINMAX type ALSA: Add new TLV types for dBwith min/max
2009-09-10Merge branch 'topic/snd-printk' into for-linusTakashi Iwai1-27/+48
* topic/snd-printk: ALSA: Fixed a typo of printk() ALSA: Add debug module option ALSA: core - strip too long file names in snd_print*()
2009-09-10Merge branch 'topic/pcm-estrpipe-in-pm' into for-linusTakashi Iwai1-0/+12
* topic/pcm-estrpipe-in-pm: ALSA: pcm - Tell user that stream to be rewound is suspended
2009-09-10Merge branch 'topic/pcm-drain-nonblock' into for-linusTakashi Iwai2-27/+37
* topic/pcm-drain-nonblock: ALSA: pcm - Increase protocol version ALSA: pcm - Fix drain behavior in non-blocking mode
2009-09-10Merge branch 'topic/oss' into for-linusTakashi Iwai1-2/+7
* topic/oss: ALSA: allocation may fail in snd_pcm_oss_change_params() sound: vwsnd: Fix setting of cfgval and ctlval in li_setup_dma() sound: fix OSS MIDI output data loss
2009-09-10Merge branch 'topic/misc' into for-linusTakashi Iwai1-0/+8
* topic/misc: ALSA: Remove unneeded ifdef from sound/core.h ALSA: Remove struct snd_monitor_file from public sound/core.h ALSA: Release v1.0.21
2009-09-10Merge branch 'topic/midi' into for-linusTakashi Iwai3-11/+12
* topic/midi: sound: rawmidi: disable active-sensing-on-close by default sound: seq_oss_midi: remove magic numbers sound: seq_midi: do not send MIDI reset when closing seq-midi: always log message on output overrun
2009-09-10Merge branch 'topic/dummy' into for-linusTakashi Iwai4-16/+20
* topic/dummy: ALSA: dummy - Increase MAX_PCM_SUBSTREAMS to 128 ALSA: dummy - Add debug proc file ALSA: Add const prefix to proc helper functions ALSA: Re-export snd_pcm_format_name() function ALSA: dummy - Fake buffer allocations ALSA: dummy - Fix the timer calculation in systimer mode ALSA: dummy - Add more description ALSA: dummy - Better jiffies handling ALSA: dummy - Support high-res timer mode
2009-09-10Merge branch 'topic/dma-sgbuf' into for-linusTakashi Iwai4-1/+11
* topic/dma-sgbuf: ALSA: Fix SG-buffer DMA with non-coherent architectures
2009-09-10Merge branch 'topic/ctl-add-remove-fixes' into for-linusTakashi Iwai1-17/+17
* topic/ctl-add-remove-fixes: sound: snd_ctl_remove_user_ctl: prevent removal of kernel controls sound: snd_ctl_remove_unlocked_id: simplify user control counting sound: snd_ctl_remove_unlocked_id: simplify error paths sound: snd_ctl_elem_add: fix value count check
2009-09-10Merge branch 'topic/cleanup' into for-linusTakashi Iwai1-3/+1
* topic/cleanup: ALSA: info - Use krealloc()
2009-09-08ALSA: Add const prefix to proc helper functionsTakashi Iwai3-4/+6
Add appropriate const prefix to char * arguments in proc helper functions. Also fixed the caller side to be proper const pointers. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2009-09-08ALSA: Re-export snd_pcm_format_name() functionTakashi Iwai1-12/+14
Re-export snd_pcm_format_name() function to be used outside the PCM core. As a first example, usbaudio is changed to use it now again. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2009-09-07ALSA: Remove struct snd_monitor_file from public sound/core.hTakashi Iwai1-0/+8
The struct snd_monitor_file is used locally only in sound/core/init.c, thus it should be moved there from the public sound/core.h. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2009-08-31ALSA: allocation may fail in snd_pcm_oss_change_params()Roel Kluin1-2/+7
Allocation may fail, show if it did. Signed-off-by: Roel Kluin <roel.kluin@gmail.com> [Additional fix for invalid runtime->oss.prepare flag set by tiwai] Signed-off-by: Takashi Iwai <tiwai@suse.de>
2009-08-27ALSA: Add debug module optionTakashi Iwai1-28/+39
Add debug module option to snd core. This controls the debug print level. When CONFIG_SND_DEBUG_VERBOSE is set, you can suppress the debug messages by giving or changing this parameter to a lower value. debug=0 means no debug messsages. As default, it's set to the verbose level 2. Since this option can be changed dynamically via sysfs file, you can suppress the verbose debug messages on the fly, which wasn't possible before. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2009-08-27ALSA: core - strip too long file names in snd_print*()Takashi Iwai1-2/+12
When modules are built with M= option, they pass long file paths to __FILE__. This results in ugly outputs of snd_print*() when CONFIG_SND_VERBOSE_PRINTK is set. This patch adds a check of the path and strips the leading path dirs if the file name is an absolute path to improve the readability of logs. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2009-08-25Merge branch 'fix/misc' of ↵Linus Torvalds1-31/+8
git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6 * 'fix/misc' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6: sound: pcm_lib: fix unsorted list constraint handling sound: vx222: fix input level control range check ALSA: ali5451: fix timeout handling in snd_ali_{codecs,timer}_ready()
2009-08-25sound: pcm_lib: fix unsorted list constraint handlingClemens Ladisch1-31/+8
snd_interval_list() expected a sorted list but did not document this, so there are drivers that give it an unsorted list. To fix this, change the algorithm to work with any list. This fixes the "Slave PCM not usable" error with USB devices that have multiple alternate settings with sample rates in decreasing order, such as the Philips Askey VC010 WebCam. http://bugzilla.kernel.org/show_bug.cgi?id=14028 Reported-and-tested-by: Andrzej <adkadk@gmail.com> Signed-off-by: Clemens Ladisch <clemens@ladisch.de> Cc: <stable@kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
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