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* sound: push BKL into open functionsArnd Bergmann2010-07-121-5/+1
| | | | | | | | | | | | | | | This moves the lock_kernel() call from soundcore_open to the individual OSS device drivers, where we can deal with it one driver at a time if needed, or just kill off the drivers. All core components in ALSA already provide adequate locking in their open()-functions and do not require the big kernel lock, so there is no need to add the BKL there. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Takashi Iwai <tiwai@suse.de>
* soundcore_open: Reduce the area BKL coverageJohn Kacur2010-07-051-5/+8
| | | | | | | | | | | | | | Most of this function is protected by the sound_loader_lock. We can push down the BKL to this call out err = file->f_op->open(inode,file); In order to build the sound core without the BKL, we will need to push the lock_kernel() call into the ~20 device drivers that register their file operations. Signed-off-by: John Kacur <jkacur@redhat.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
* ALSA: use subsys_initcall for sound core instead of module_initThadeu Lima de Souza Cascardo2010-01-141-1/+1
| | | | | | | | | | This is needed for built-in drivers which are built before the sound directory, like thinkpad_acpi. Otherwise, registering a card fails. Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@holoscopio.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
* tree-wide: fix assorted typos all over the placeAndré Goddard Rosa2009-12-041-1/+1
| | | | | | | | | | That is "success", "unknown", "through", "performance", "[re|un]mapping" , "access", "default", "reasonable", "[con]currently", "temperature" , "channel", "[un]used", "application", "example","hierarchy", "therefore" , "[over|under]flow", "contiguous", "threshold", "enough" and others. Signed-off-by: André Goddard Rosa <andre.goddard@gmail.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
* Driver-Core: extend devnode callbacks to provide permissionsKay Sievers2009-09-191-2/+2
| | | | | | | | | | | | | This allows subsytems to provide devtmpfs with non-default permissions for the device node. Instead of the default mode of 0600, null, zero, random, urandom, full, tty, ptmx now have a mode of 0666, which allows non-privileged processes to access standard device nodes in case no other userspace process applies the expected permissions. This also fixes a wrong assignment in pktcdvd and a checkpatch.pl complain. Signed-off-by: Kay Sievers <kay.sievers@vrfy.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* sound: make OSS device number claiming optional and schedule its removalTejun Heo2009-08-101-18/+70
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If any OSS support is enabled, regardless of built-in or module, sound_core claims full OSS major number (that is, the old 0-255 region) to trap open attempts and request sound modules using custom module aliases. This feature is redundant as chrdev already has such mechanism. This preemptive claiming prevents alternative OSS implementation. The custom module aliases are scheduled to be removed and the previous patch made soundcore emit the standard chrdev aliases too to help transition. This patch schedule the feature for removal in a year and makes it optional so that developers and distros can try new things in the meantime without rebuilding the kernel. The pre-claiming can be turned off by using SOUND_OSS_CORE_PRECLAIM and/or kernel parameter soundcore.preclaim_oss. As this allows sound minors to be individually grabbed by other users, this patch updates sound_insert_unit() such that if registering individual device region fails, it tries the next available slot. For details on removal plan, please read the entry added by this patch in feature-removal-schedule.txt . Signed-off-by: Tejun Heo <tj@kernel.org> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: Takashi Iwai <tiwai@suse.de>
* sound: request char-major-* module aliases for missing OSS devicesTejun Heo2009-08-101-0/+12
| | | | | | | | | | | | | | | Till now missing OSS devices emitted sound-slot/service-* module alises instead of the standard char-major-* if a missing device number is opened if soundcore is loaded. The custom module aliases don't have any inherent benefit than backward compatibility. sound-slot/service-* module aliases is scheduled to be removed and to help the transition this patch makes soundcore emit the standard module alises along with the custom ones. Signed-off-by: Tejun Heo <tj@kernel.org> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: Takashi Iwai <tiwai@suse.de>
* sound: do not set DEVNAME for OSS devicesKay Sievers2009-07-031-1/+4
| | | | | Signed-off-by: Kay Sievers <kay.sievers@vrfy.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
* Driver Core: sound: add nodename for sound driversKay Sievers2009-06-151-0/+7
| | | | | | | | | This adds support to the sound core to report the proper device name to userspace for their devices. Signed-off-by: Kay Sievers <kay.sievers@vrfy.org> Signed-off-by: Jan Blunck <jblunck@suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* ALSA: Fix declaration of sound_classMark Brown2008-12-151-0/+1
| | | | | | | | Include sound/core.h in sound_core.c so that sound_class is declared before it is defined, avoiding it looking like it should be static. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
* sound/sound_core: Fix sparse warningsHannes Eder2008-11-211-3/+3
| | | | | | | | | | | | Fix the following sparse warnings: sound/sound_core.c:460:2: warning: returning void-valued expression sound/sound_core.c:477:2: warning: returning void-valued expression sound/sound_core.c:510:5: warning: symbol 'soundcore_open' was not declared. Should it be static? Signed-off-by: Hannes Eder <hannes@hanneseder.net> Signed-off-by: Takashi Iwai <tiwai@suse.de>
*-. Merge branches 'topic/fix/asoc', 'topic/fix/hda', 'topic/fix/misc' and ↵Takashi Iwai2008-10-271-1/+1
|\ \ | | | | | | | | | 'topic/pci-ioremap-bar' into for-linus
| | * sound: use a common working email addressAlan Cox2008-10-271-1/+1
| |/ | | | | | | | | Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
* / device create: sound: convert device_create_drvdata to device_createGreg Kroah-Hartman2008-10-161-3/+2
|/ | | | | | | | | Now that device_create() has been audited, rename things back to the original call to be sane. Cc: Jaroslav Kysela <perex@perex.cz> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* ALSA: fix section mismatch in the sound_coreKrzysztof Helt2008-09-091-2/+2
| | | | | | | | | | | | The __exit cleanup_oss_soundcore() is called from the __init init_soundcore(). This causes section mismatch and breaks kernel's linking on sparc64. Remove the __exit attribute from the cleanup_oss_soundcore(). Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@perex.cz>
* sound: make OSS sound core optionalTejun Heo2008-08-291-19/+60
| | | | | | | | | | | | | | | | | | | | | | | | sound/sound_core.c implements soundcore.ko and contains two parts - sound_class which is shared by both ALSA and OSS and device redirection support for OSS. It's always compiled when any sound support is enabled although it's necessary only when OSS (the actual one or emulation) is enabled. This is slightly wasteful and as device redirection always registers character device region for major 14, it prevents alternative implementation. This patch introduces a new config SOUND_OSS_CORE which is selected iff OSS support is actually necessary and build the OSS core part conditionally. If OSS is disabled, soundcore merely contains sound_class but leaving it that way seems to be the simplest approach as otherwise sound_class should be in ALSA core file if OSS is disabled but should be in soundcore if OSS is enabled. Also, there's also the user confusion factor. Signed-off-by: Tejun Heo <tj@kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@perex.cz>
* device create: sound: convert device_create to device_create_drvdataGreg Kroah-Hartman2008-07-211-2/+3
| | | | | | | | | device_create() is race-prone, so use the race-free device_create_drvdata() instead as device_create() is going away. Cc: Jaroslav Kysela <perex@perex.cz> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* sound: cdev lock_kernel() pushdownJonathan Corbet2008-06-201-0/+5
| | | | Signed-off-by: Jonathan Corbet <corbet@lwn.net>
* [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>
* Driver core: convert sound core to use struct deviceGreg Kroah-Hartman2006-12-011-3/+3
| | | | | | | | | | | | | | | | | | | | Converts from using struct "class_device" to "struct device" making everything show up properly in /sys/devices/ with symlinks from the /sys/class directory. It also makes the struct sound_card to show up as a "real" device where all the different sound class devices are placed as childs and different card attribute files can hang off of. /sys/class/sound is still a flat directory, but the symlink targets of all devices belonging to the same card, point the the /sys/devices tree below the new card device object. Thanks to Kay for the updates to this patch. Signed-off-by: Kay Sievers <kay.sievers@novell.com> Acked-by: Jaroslav Kysela <perex@suse.cz> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* [PATCH] The scheduled removal of some OSS driversAdrian Bunk2006-10-041-34/+0
| | | | | | | | | | | | | This patch contains the scheduled removal of OSS drivers that: - have ALSA drivers for the same hardware without known regressions and - whose Kconfig options have been removed in 2.6.17. [michal.k.k.piotrowski@gmail.com: build fix] Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Michal Piotrowski <michal.k.k.piotrowski@gmail.com> Cc: David Woodhouse <dwmw2@infradead.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] build sound/sound_firmware.c only for OSSAdrian Bunk2006-09-291-4/+0
| | | | | | | | | | | | | | | | All sound/sound_firmware.c contains is mod_firmware_load() that is a legacy API only used by some OSS drivers. This patch builds it into an own sound_firmware module that is only built depending on CONFIG_SOUND_PRIME making the kernel slightly smaller for ALSA users. [alan@lxorguk.ukuu.org.uk: comment fix] Signed-off-by: Adrian Bunk <bunk@stusta.de> Acked-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* Remove obsolete #include <linux/config.h>Jörn Engel2006-06-301-1/+0
| | | | | Signed-off-by: Jörn Engel <joern@wohnheim.fh-wedel.de> Signed-off-by: Adrian Bunk <bunk@stusta.de>
* [PATCH] devfs: Remove devfs support from the sound subsystemGreg Kroah-Hartman2006-06-261-6/+0
| | | | Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* [PATCH] mark f_ops const in the inodeArjan van de Ven2006-03-281-11/+11
| | | | | | | | | | | Mark the f_ops members of inodes as const, as well as fix the ripple-through this causes by places that copy this f_ops and then "do stuff" with it. Signed-off-by: Arjan van de Ven <arjan@infradead.org> Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] Driver Core: fix up all callers of class_device_create()Greg Kroah-Hartman2005-10-281-1/+1
| | | | | | | | The previous patch adding the ability to nest struct class_device changed the paramaters to the call class_device_create(). This patch fixes up all in-kernel users of the function. Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* [PATCH] Assign device pointer to OSS devicesTakashi Iwai2005-08-301-9/+18
| | | | | | | Add register_sound_special_device() function to allow assignment of device pointer to a specific OSS device for HAL. Signed-off-by: Takashi Iwai <tiwai@suse.de>
* [PATCH] class: convert sound/* to use the new class api instead of class_simplegregkh@suse.de2005-06-201-5/+5
| | | | Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* Linux-2.6.12-rc2v2.6.12-rc2Linus Torvalds2005-04-161-0/+583
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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