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2008-05-20SOUND: fix race in device_createGreg Kroah-Hartman
There is a race from when a device is created with device_create() and then the drvdata is set with a call to dev_set_drvdata() in which a sysfs file could be open, yet the drvdata will be NULL, causing all sorts of bad things to happen. This patch fixes the problem by using the new function, device_create_drvdata(). Cc: Kay Sievers <kay.sievers@vrfy.org> Cc: Jaroslav Kysela <perex@perex.cz> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-04-29sound: use non-racy method for /proc/driver/snd-page-alloc creationDenis V. Lunev
Use proc_create() to make sure that ->proc_fops be setup before gluing PDE to main tree. Signed-off-by: Denis V. Lunev <den@openvz.org> Cc: Alexey Dobriyan <adobriyan@gmail.com> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Cc: Jaroslav Kysela <perex@suse.cz> Cc: Takashi Iwai <tiwai@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-04-29proc: remove proc_root from driversAlexey Dobriyan
Remove proc_root export. Creation and removal works well if parent PDE is supplied as NULL -- it worked always that way. So, one useless export removed and consistency added, some drivers created PDEs with &proc_root as parent but removed them as NULL and so on. Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-04-24[ALSA] Clean up snd_card_free*()Takashi Iwai
A little clean up of snd_card_free*(). Removed snd_card_free_prepare() since it's actually almost identical with snd_card_disconnect(). Signed-off-by: Takashi Iwai <tiwai@suse.de>
2008-04-24[ALSA] Fix the race of card instance unregistrationTakashi Iwai
Move the call of device_unregister() for the card instance in snd_card_disconnect() to avoid the race of sysfs card entry, which can be typically found on usb-audio reconnection. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2008-04-24[ALSA] sound: this amplifier only goes up to 7Nick Andrew
sound: kernel log levels are 0-7 Kernel log levels are 0-7, not 0-9. Signed-off-by: Nick Andrew <nick@nick-andrew.net> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2008-04-24[ALSA] sound: replace remaining __FUNCTION__ occurencesHarvey Harrison
__FUNCTION__ is gcc-specific, use __func__ Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2008-04-24[ALSA] seq-oss - Remove invalid BUG()Takashi Iwai
Removed invalid BUG() - the driver should handle the error case properly rather than issuing BUG(). Signed-off-by: Takashi Iwai <tiwai@suse.de>
2008-04-24[ALSA] Keep private TLV entry in vmaster itselfTakashi Iwai
Use a private array for TLV entries of virtual master controls instead of (supposed) static array. This cleans up the existing codes. Also, now vmaster assumes the simple dB-range TLV that is the only type it can handle. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2008-04-24[ALSA] Move vmaster code to sound coreTakashi Iwai
Move the codes for virtual master controls to sound core part so that not only hda-intel drivers can use it. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2008-04-24[ALSA] Add more fallbacks to OSS PHONEOUT mixer mapTakashi Iwai
Added more fallbacks to OSS PHONEOUT mixer mapping. This corresponds to the speaker output in general, so now "Mono" and "Speaker" are assigned. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2008-02-14Dont touch fs_struct in driversJan Blunck
The sound drivers and the pnpbios core test for current->root != NULL. This test seems to be unnecessary since we always have rootfs mounted before initializing the drivers. Signed-off-by: Jan Blunck <jblunck@suse.de> Acked-by: Christoph Hellwig <hch@lst.de> Cc: Bjorn Helgaas <bjorn.helgaas@hp.com> Cc: Jaroslav Kysela <perex@suse.cz> Acked-by: Takashi Iwai <tiwai@suse.de> Cc: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-05latency.c: use QoS infrastructureMark Gross
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>
2008-01-31[ALSA] Fix Oops with PCM OSS syncTakashi Iwai
The PCM OSS emulation can cause Oops at sync operation due to the wrong data size calculation. Typically happening on Sparc64: http://lkml.org/lkml/2008/1/24/426 Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-01-31[ALSA] fix compilation warning in GCCMiguel Boton
'snd_shutdown_f_ops' is not a pointer so its address will never be NULL. GCC will complain because 'fops_get' will do an unnecessary check because '&snd_shutdown_f_ops' is always true. Signed-off-by: Miguel Boton <mboton@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-01-31[ALSA] PCM interface - rename SNDRV_PCM_TSTAMP_MMAP to SNDRV_PCM_TSTAMP_ENABLEJaroslav Kysela
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>
2008-01-31[ALSA] rawmidi: let sparse know what is going on _for real_Marcin Ślusarz
snd_rawmidi_kernel_read1/write1 weren't annotated but used copy_to_user/copy_from_user when one of parameters (kernel) was equal to 0 remove it and add properly annotated parameter 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] Remove sound/driver.hTakashi Iwai
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>
2008-01-31[ALSA] Remove PCM sleep_min and tickTakashi Iwai
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>
2008-01-31[ALSA] PCM - clean up snd_pcm_lib_read/writeTakashi Iwai
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 Iwai
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 Iwai
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] Remove indirect control accessTakashi Iwai
This patch removes the indirect control access to the control elements. The indirect access has never been used and is even broken on 32bit ioctl wrapper. Let's clean it up. The pointers still remain in snd_ctl_elem_* structs just to make sure that the struct size won't change. Once after checking the size consistency, we can get rid of them, too. Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-01-31[ALSA] PCM core - remove SNDRV_PCM_TSTAMP_MMAP condition in snd_pcm_status()Jaroslav Kysela
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>
2008-01-31[ALSA] Add SNDRV_PCM_IOCTL_TSTAMP back to compat ioctlTakashi Iwai
The replaced one should be re-added for older alsa-lib. Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-01-31[ALSA] PCM - added back TSTAMP ioctl for PCM (for old alsa-lib binaries)Jaroslav Kysela
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-01-31[ALSA] sound/core/seq: move declarations of globally visible variables to ↵Marcin Ślusarz
proper headers sound/core/seq: move declarations of globally visible variables to proper headers 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] info_oss: move prototype of snd_card_info_read_oss to info.hMarcin Ślusarz
info_oss: move prototype of snd_card_info_read_oss to info.h 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 different signednessMarcin Ślusarz
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 Ślusarz
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] pcm_native: fix sparse warning about shadowing 'state' symbolMarcin Ślusarz
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>
2008-01-31[ALSA] copy_ctl_value_from_user() warning fixAndrew Morton
sound/core/control_compat.c: In function 'copy_ctl_value_from_user': sound/core/control_compat.c:222: warning: 'count' may be used uninitialized in this function Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-01-31[ALSA] Fix old tstamp ioctl for compat_ioctlTakashi Iwai
Replaced the old SNDRV_PCM_IOCTL_TSTAMP with the new one in PCM compat_ioctl. Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-01-31[ALSA] alsa: nopageNick Piggin
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>
2008-01-31[ALSA] PCM - fixed SNDRV_PCM_FORMAT_U24_BE silence constantJaroslav Kysela
Reported by Timur Tabi <timur@freescale.com> . Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-01-31[ALSA] Use posix clock monotonic for PCM and timer timestampsJaroslav Kysela
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] sound/core/memalloc.c: Add missing pci_dev_putJulia Lawall
There should be a pci_dev_put when breaking out of a loop that iterates over calls to pci_get_device and similar functions. In this case, the return under the initial if needs a pci_dev_put in the same way that the return under the subsequent for loop has a pci_dev_put. This was fixed using the following semantic patch. // <smpl> @@ type T; identifier d; expression e; @@ T *d; ... while ((d = \(pci_get_device\|pci_get_device_reverse\|pci_get_subsys\|pci_get_class\)(..., d)) != NULL) {... when != pci_dev_put(d) when != e = d ( return d; | + pci_dev_put(d); ? return ...; ) ...} // </smpl> Signed-off-by: Julia Lawall <julia@diku.dk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-01-31[ALSA] Fix PCM MMAP time-stamp modeTakashi Iwai
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>
2008-01-31[ALSA] Remove sequencer instrument layerTakashi Iwai
Remove sequencer instrument layer from the tree. This mechanism hasn't been used much with the actual devices. The only reasonable user was OPL3 loader, and now it was rewritten to use hwdep instead. So, let's remove the rest of rotten codes. Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-01-31[ALSA] Introduce slots option to snd moduleTakashi Iwai
Introduced the global 'slots' option to snd module. This option provides an alternative way to handle the order of multiple sound card instances. It's an easier approach to avoid conflict with hotplug devices, and can be used together with the existing 'order' option of each card driver. Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-01-08snd_mixer_oss_build_input(): fix for __you_cannot_kmalloc_that_much failure ↵Jean Delvare
with gcc-3.2 Rework this functions so that gcc-3.2 can successfully perform constant-folding. Signed-off-by: Jean Delvare <khali@linux-fr.org> Cc: Jaroslav Kysela <perex@suse.cz> Cc: Takashi Iwai <tiwai@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-23[ALSA] sound/core/control.c: hard-irq-safe -> hard-irq-unsafe lock warningBorislav Petkov
The lock grabbed in snd_ctl_empty_read_queue() is hardirq-unsafe but we hold an hardirq-safe one already, so make the &ctl->read_lock also hard-irq-safe. Signed-off-by: Borislav Petkov <bbpetkov@yahoo.de> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2007-10-19Fix misspellings of "system", "controller", "interrupt" and "necessary".Robert P. J. Day
Fix the various misspellings of "system", controller", "interrupt" and "[un]necessary". Signed-off-by: Robert P. J. Day <rpjday@mindspring.com> Signed-off-by: Adrian Bunk <bunk@kernel.org>
2007-10-16[ALSA] Changed Jaroslav Kysela's e-mail from perex@suse.cz to perex@perex.czJaroslav Kysela
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2007-10-16[ALSA] sound: snd_register_device_for_dev fixMariusz Kozlowski
snd_register_device_for_dev() can oops when device_create() returns ERR_PTR(err). Scenario: preg->dev = device_create(...); /* fails */ if (preg->dev) /* contains ERR_PTR(err) */ dev_set_drvdata(preg->dev, private_data); and dev_set_drvdata() looks like this: static inline void dev_set_drvdata (struct device *dev, void *data) { dev->driver_data = data; <--- boom } This patch should prevent that. Signed-off-by: Mariusz Kozlowski <m.kozlowski@tuxland.pl> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@suse.cz>
2007-10-16[ALSA] schedule_timeout() fix for core/seq/seq_instr.cRene Herman
Replace schedule_timeout() with schedule_timeout_uninterruptible() to avoid signals in loop. Signed-off-by: Rene Herman <rene.herman@gmail.com> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@suse.cz>
2007-10-16[ALSA] unexport snd_ctl_elem_{read,write}Adrian Bunk
snd_ctl_elem_{read,write} no longer have any modular users Signed-off-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@suse.cz>
2007-10-16[ALSA] pcm: add snd_pcm_rate_to_rate_bit() helperClemens Ladisch
Add a snd_pcm_rate_to_rate_bit() function to factor out common code used by several drivers. Signed-off-by: Clemens Ladisch <clemens@ladisch.de> Signed-off-by: Jaroslav Kysela <perex@suse.cz>
2007-10-16[ALSA] pcm: merge rates[] from pcm_misc.c and pcm_native.cClemens Ladisch
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>
2007-10-16[ALSA] seq_midi_event: fix parsing of F9/FD bytesClemens Ladisch
Check for a valid event type when encoding a system real-time message to prevent the bytes F9 or FD resulting in an empty sequencer message. Signed-off-by: Clemens Ladisch <clemens@ladisch.de> Signed-off-by: Jaroslav Kysela <perex@suse.cz>
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