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| * ALSA: powermac - Add debug logRisto Suominen2010-04-041-0/+3
| | | | | | | | | | | | | | Add some debug log in tumbler.c. Signed-off-by: Risto Suominen <Risto.Suominen@gmail.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
| * ALSA: powermac - Lineout detection on G4 DARisto Suominen2010-04-041-1/+5
| | | | | | | | | | | | | | Lineout (Pro Speaker) detection on PowerMac G4 Digital Audio (Tumbler). Signed-off-by: Risto Suominen <Risto.Suominen@gmail.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
| * ALSA: powermac - Reverse HP detection on G4 DARisto Suominen2010-04-041-1/+4
| | | | | | | | | | | | | | Reverse headphone detection bit on PowerMac G4 Digital Audio (Tumbler). Signed-off-by: Risto Suominen <Risto.Suominen@gmail.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
* | include cleanup: Update gfp.h and slab.h includes to prepare for breaking ↵Tejun Heo2010-03-303-3/+1
|/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | implicit slab.h inclusion from percpu.h percpu.h is included by sched.h and module.h and thus ends up being included when building most .c files. percpu.h includes slab.h which in turn includes gfp.h making everything defined by the two files universally available and complicating inclusion dependencies. percpu.h -> slab.h dependency is about to be removed. Prepare for this change by updating users of gfp and slab facilities include those headers directly instead of assuming availability. As this conversion needs to touch large number of source files, the following script is used as the basis of conversion. http://userweb.kernel.org/~tj/misc/slabh-sweep.py The script does the followings. * Scan files for gfp and slab usages and update includes such that only the necessary includes are there. ie. if only gfp is used, gfp.h, if slab is used, slab.h. * When the script inserts a new include, it looks at the include blocks and try to put the new include such that its order conforms to its surrounding. It's put in the include block which contains core kernel includes, in the same order that the rest are ordered - alphabetical, Christmas tree, rev-Xmas-tree or at the end if there doesn't seem to be any matching order. * If the script can't find a place to put a new include (mostly because the file doesn't have fitting include block), it prints out an error message indicating which .h file needs to be added to the file. The conversion was done in the following steps. 1. The initial automatic conversion of all .c files updated slightly over 4000 files, deleting around 700 includes and adding ~480 gfp.h and ~3000 slab.h inclusions. The script emitted errors for ~400 files. 2. Each error was manually checked. Some didn't need the inclusion, some needed manual addition while adding it to implementation .h or embedding .c file was more appropriate for others. This step added inclusions to around 150 files. 3. The script was run again and the output was compared to the edits from #2 to make sure no file was left behind. 4. Several build tests were done and a couple of problems were fixed. e.g. lib/decompress_*.c used malloc/free() wrappers around slab APIs requiring slab.h to be added manually. 5. The script was run on all .h files but without automatically editing them as sprinkling gfp.h and slab.h inclusions around .h files could easily lead to inclusion dependency hell. Most gfp.h inclusion directives were ignored as stuff from gfp.h was usually wildly available and often used in preprocessor macros. Each slab.h inclusion directive was examined and added manually as necessary. 6. percpu.h was updated not to include slab.h. 7. Build test were done on the following configurations and failures were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my distributed build env didn't work with gcov compiles) and a few more options had to be turned off depending on archs to make things build (like ipr on powerpc/64 which failed due to missing writeq). * x86 and x86_64 UP and SMP allmodconfig and a custom test config. * powerpc and powerpc64 SMP allmodconfig * sparc and sparc64 SMP allmodconfig * ia64 SMP allmodconfig * s390 SMP allmodconfig * alpha SMP allmodconfig * um on x86_64 SMP allmodconfig 8. percpu.h modifications were reverted so that it could be applied as a separate patch and serve as bisection point. Given the fact that I had only a couple of failures from tests on step 6, I'm fairly confident about the coverage of this conversion patch. If there is a breakage, it's likely to be something in one of the arch headers which should be easily discoverable easily on most builds of the specific arch. Signed-off-by: Tejun Heo <tj@kernel.org> Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
* of: add 'of_' prefix to machine_is_compatible()Grant Likely2010-02-093-23/+23
| | | | | | | | machine is compatible is an OF-specific call. It should have the of_ prefix to protect the global namespace. Signed-off-by: Grant Likely <grant.likely@secretlab.ca> Acked-by: Michal Simek <monstr@monstr.eu>
* Merge branch 'topic/beep-rename' into topic/core-changeTakashi Iwai2009-12-013-11/+11
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| * ALSA: rename "PC Speaker" controls to "Speaker"Jaroslav Kysela2009-11-053-11/+11
| | | | | | | | | | | | | | 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>
* | powerpc: Minor cleanup to sound/ppc/KconfigKumar Gala2009-10-271-1/+1
|/ | | | | | | | We can replace PPC32 || PPC64 as a dependancy with just PPC as all powerpc platforms (32-bit and 64-bit) define PPC now. Signed-off-by: Kumar Gala <galak@kernel.crashing.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* sound: Make keywest_driver staticJean Delvare2009-10-021-1/+1
| | | | | | | | I can't see any reason for struct i2c_driver keywest_driver to not be static. Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
* ALSA: Don't assume i2c device probing always succeedsTakashi Iwai2009-10-011-0/+12
| | | | | | | | | | | The client->driver pointer can be NULL when i2c-device probing fails in i2c_new_device(). This patch adds the NULL checks for client->driver and return the error instead of blind assumption of driver availability. Reported-by: Tim Shepard <shep@alum.mit.edu> Cc: Jean Delvare <khali@linux-fr.org> Cc: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Takashi Iwai <tiwai@suse.de>
* Merge branch 'topic/ps3' into for-linusTakashi Iwai2009-06-121-351/+304
|\ | | | | | | | | | | | | * topic/ps3: ALSA: sound/ps3: Correct existing and add missing annotations ALSA: sound/ps3: Restructure driver source ALSA: sound/ps3: Fix checkpatch issues
| * ALSA: sound/ps3: Correct existing and add missing annotationsGeert Uytterhoeven2009-06-101-6/+6
| | | | | | | | | | | | | | probe functions should be __devinit Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
| * ALSA: sound/ps3: Restructure driver sourceGeert Uytterhoeven2009-06-101-333/+288
| | | | | | | | | | | | | | | | | | Sort includes, and reorder code so we can kill the forward declarations No functional changes Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
| * ALSA: sound/ps3: Fix checkpatch issuesGeert Uytterhoeven2009-06-101-17/+15
| | | | | | | | | | Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
* | Merge branch 'topic/section-fix' into for-linusTakashi Iwai2009-06-107-56/+56
|\ \ | | | | | | | | | | | | | | | | | | * topic/section-fix: ALSA: Add missing __devexit_p() markers ALSA: powermac - Replace the rest of __init* ALSA: sound/ppc: update annotations of serveral functions
| * | ALSA: powermac - Replace the rest of __init*Takashi Iwai2009-06-034-44/+44
| | | | | | | | | | | | | | | | | | All __initdata should be __devinitdata as platform device is hotpluggable. Signed-off-by: Takashi Iwai <tiwai@suse.de>
| * | ALSA: sound/ppc: update annotations of serveral functionsStephen Rothwell2009-06-037-12/+12
| |/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | [I am not sure if this is the correct approach as I don't know if any of this actual hardware or drivers are really hot pluggable.] Gets rid of these build warnings: WARNING: sound/ppc/snd-powermac.o(.devinit.text+0x5c): Section mismatch in reference from the function .snd_pmac_probe() to the function .init.text:.snd_pmac_new() The function __devinit .snd_pmac_probe() references a function __init .snd_pmac_new(). If .snd_pmac_new is only used by .snd_pmac_probe then annotate .snd_pmac_new with a matching annotation. WARNING: sound/ppc/snd-powermac.o(.devinit.text+0x10c): Section mismatch in reference from the function .snd_pmac_probe() to the function .init.text:.snd_pmac_burgundy_init() The function __devinit .snd_pmac_probe() references a function __init .snd_pmac_burgundy_init(). If .snd_pmac_burgundy_init is only used by .snd_pmac_probe then annotate .snd_pmac_burgundy_init with a matching annotation. WARNING: sound/ppc/snd-powermac.o(.devinit.text+0x164): Section mismatch in reference from the function .snd_pmac_probe() to the function .init.text:.snd_pmac_daca_init() The function __devinit .snd_pmac_probe() references a function __init .snd_pmac_daca_init(). If .snd_pmac_daca_init is only used by .snd_pmac_probe then annotate .snd_pmac_daca_init with a matching annotation. WARNING: sound/ppc/snd-powermac.o(.devinit.text+0x1dc): Section mismatch in reference from the function .snd_pmac_probe() to the function .init.text:.snd_pmac_tumbler_init() The function __devinit .snd_pmac_probe() references a function __init .snd_pmac_tumbler_init(). If .snd_pmac_tumbler_init is only used by .snd_pmac_probe then annotate .snd_pmac_tumbler_init with a matching annotation. WARNING: sound/ppc/snd-powermac.o(.devinit.text+0x1ec): Section mismatch in reference from the function .snd_pmac_probe() to the function .init.text:.snd_pmac_tumbler_post_init() The function __devinit .snd_pmac_probe() references a function __init .snd_pmac_tumbler_post_init(). If .snd_pmac_tumbler_post_init is only used by .snd_pmac_probe then annotate .snd_pmac_tumbler_post_init with a matching annotation. WARNING: sound/ppc/snd-powermac.o(.devinit.text+0x28c): Section mismatch in reference from the function .snd_pmac_probe() to the function .init.text:.snd_pmac_awacs_init() The function __devinit .snd_pmac_probe() references a function __init .snd_pmac_awacs_init(). If .snd_pmac_awacs_init is only used by .snd_pmac_probe then annotate .snd_pmac_awacs_init with a matching annotation. WARNING: sound/ppc/snd-powermac.o(.devinit.text+0x2bc): Section mismatch in reference from the function .snd_pmac_probe() to the function .init.text:.snd_pmac_pcm_new() The function __devinit .snd_pmac_probe() references a function __init .snd_pmac_pcm_new(). If .snd_pmac_pcm_new is only used by .snd_pmac_probe then annotate .snd_pmac_pcm_new with a matching annotation. WARNING: sound/ppc/snd-powermac.o(.devinit.text+0x2f8): Section mismatch in reference from the function .snd_pmac_probe() to the function .init.text:.snd_pmac_attach_beep() The function __devinit .snd_pmac_probe() references a function __init .snd_pmac_attach_beep(). If .snd_pmac_attach_beep is only used by .snd_pmac_probe then annotate .snd_pmac_attach_beep with a matching annotation. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Takashi Iwai <tiwai@suse.de>
* | ALSA: burgundy: timeout message is off by one.Roel Kluin2009-06-041-2/+2
| | | | | | | | | | | | | | Timeout message is off by one. Signed-off-by: Roel Kluin <roel.kluin@gmail.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
* | ALSA: keywest: Get rid of useless i2c_device_name() macroJean Delvare2009-05-141-5/+1
|/ | | | | | | | | The i2c_device_name() macro is used only once and doesn't have much value, it hurts redability more than it helps. Get rid of it. Signed-off-by: Jean Delvare <khali@linux-fr.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
* ALSA: keywest: Convert to new-style i2c driverJean Delvare2009-04-211-41/+41
| | | | | | | | | The legacy i2c binding model is going away soon, so convert the ppc keywest sound driver to the new model or it will break. Signed-off-by: Jean Delvare <khali@linux-fr.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
* ALSA: move snd_powermac's probe function to .devinit.textUwe Kleine-König2009-04-061-1/+1
| | | | | | | | | | | | | | | | | | | A pointer to snd_pmac_probe is passed to the core via platform_driver_register and so the function must not disappear when the .init sections are discarded. Otherwise (when having HOTPLUG=y) unbinding and binding a device to the driver via sysfs will result in an oops as does a device being registered late. An alternative to this patch is using platform_driver_probe instead of platform_driver_register plus removing the pointer to the probe function from the struct platform_driver. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Cc: Jaroslav Kysela <perex@perex.cz> Cc: Johannes Berg <johannes@sipsolutions.net> Cc: Rene Herman <rene.herman@keyaccess.nl> Cc: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
* Merge branch 'topic/powermac' into for-linusTakashi Iwai2009-03-247-24/+95
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| * ALSA: snd-powermac: timeout reaches -1Roel Kluin2009-03-091-1/+1
| | | | | | | | | | | | | | If unsuccessful, timeout reaches -1 after the loop. Signed-off-by: Roel Kluin <roel.kluin@gmail.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
| * ALSA: powermac - Add missing KERN_* prefix to printkTakashi Iwai2009-03-094-12/+13
| | | | | | | | Signed-off-by: Takashi Iwai <tiwai@suse.de>
| * ALSA: Add vmaster controls for Pmac 5500, iMac G3 SL, and PBook G3 LombardRisto Suominen2009-03-092-6/+69
| | | | | | | | | | | | | | | | Add virtual master controls for PowerMac 5500 (AWACS) and iMac G3 Slot-loading and PowerBook G3 Lombard (Screamer). Signed-off-by: Risto Suominen <Risto.Suominen@gmail.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
| * ALSA: powermac - Allow input from mic in iBook G3 Dual-USBRisto Suominen2009-03-091-1/+2
| | | | | | | | | | | | | | Allow input from microphone on iBook G3 Dual-USB (Tumbler). Signed-off-by: Risto Suominen <Risto.Suominen@gmail.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
| * ALSA: powermac - Correct volume controls and HP detection for PMac 8500/9500Risto Suominen2009-03-091-1/+3
| | | | | | | | | | | | | | Correct volume controls and headphone detection for PowerMac 8500/9500 (AWACS). Signed-off-by: Risto Suominen <Risto.Suominen@gmail.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
| * ALSA: powermac - Correct volume controls for PowerBook G3 LombardRisto Suominen2009-03-091-2/+4
| | | | | | | | | | | | | | Correct volume controls for PowerBook G3 Lombard (Screamer). Signed-off-by: Risto Suominen <Risto.Suominen@gmail.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
| * ALSA: powermac - Correct HP detection and input selectors for PMac 5500Risto Suominen2009-03-091-2/+4
| | | | | | | | | | | | | | Correct headphone detection and input selectors for PowerMac 5500 (AWACS). Signed-off-by: Risto Suominen <Risto.Suominen@gmail.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
* | Merge branch 'topic/snd_card_new-err' into for-linusTakashi Iwai2009-03-242-7/+5
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| * ALSA: Convert to snd_card_create() in other sound/*Takashi Iwai2009-01-122-7/+5
| | | | | | | | | | | | | | Convert from snd_card_new() to the new snd_card_create() function in other sound subdirectories. Signed-off-by: Takashi Iwai <tiwai@suse.de>
* | powerpc/ps3: Printing fixups for l64 to ll64 conversion sound/ppcStephen Rothwell2009-01-161-2/+2
|/ | | | | | | Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Acked-by: Takashi Iwai <tiwai@suse.de> Acked-by: Geoff Levand <geoffrey.levand@am.sony.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* Merge branch 'topic/misc' into topic/pcsp-fixTakashi Iwai2008-11-262-2/+3
|\ | | | | | | | | Conflicts: sound/drivers/pcsp/pcsp_lib.c
| * ALSA: snd-powermac: enable mic on iMac G4Risto Suominen2008-11-181-1/+1
| | | | | | | | | | | | | | Allow input from microphone on iMac G4 Flat-panel (Tumbler). Signed-off-by: Risto Suominen <Risto.Suominen@gmail.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
| * ALSA: powermac - Rename mic-analog loopback mixer elementTakashi Iwai2008-11-121-1/+2
| | | | | | | | | | | | | | PCM Playback Volume:1 is actually assigned to a mic loopback volume on iBook G4. Let's rename it. Signed-off-by: Takashi Iwai <tiwai@suse.de>
* | ALSA: ps3: Add support for SPDIF/HDMI passthruTakashi Iwai2008-10-202-6/+91
|/ | | | | | | Add support for SPDIF/HDMI pass-through support of PS3 audio driver. Signed-off-by: Masakazu Mokuno <mokuno@sm.sony.co.jp> Signed-off-by: Takashi Iwai <tiwai@suse.de>
* ALSA: Kill snd_assert() in other placesTakashi Iwai2008-08-133-28/+18
| | | | | | | | Kill snd_assert() in other places, 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: snd-powermac: HP detection for 1st iMac G3 SLRisto Suominen2008-10-021-9/+22
| | | | | | | | | | | | | Correct headphone detection for 1st generation iMac G3 Slot-loading (Screamer). This patch fixes the regression in the recent snd-powermac which doesn't support some G3/G4 PowerMacs: http://lkml.org/lkml/2008/10/1/220 Signed-off-by: Risto Suominen <Risto.Suominen@gmail.com> Tested-by: Mariusz Kozlowski <m.kozlowski@tuxland.pl> Cc: stable@kernel.org Signed-off-by: Takashi Iwai <tiwai@suse.de>
* ALSA: snd-powermac: mixers for PowerMac G4 AGPRisto Suominen2008-10-021-3/+16
| | | | | | | | | | | | | Add mixer controls for PowerMac G4 AGP (Screamer). This patch fixes the regression in the recent snd-powermac which doesn't support some G3/G4 PowerMacs: http://lkml.org/lkml/2008/10/1/220 Signed-off-by: Risto Suominen <Risto.Suominen@gmail.com> Tested-by: Mariusz Kozlowski <m.kozlowski@tuxland.pl> Cc: stable@kernel.org Signed-off-by: Takashi Iwai <tiwai@suse.de>
* ALSA: remove CONFIG_KMOD from soundJohannes Berg2008-07-102-4/+0
| | | | | | | | | | A bunch of things in alsa depend on CONFIG_KMOD, use CONFIG_MODULES instead where the dependency is needed at all. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@perex.cz>
* sound: Convert to menuconfigTakashi Iwai2008-05-271-15/+11
| | | | | | Convert menu in sound Kconfig files to menuconfig and if. Signed-off-by: Takashi Iwai <tiwai@suse.de>
* [ALSA] snd-powermac: style burgundy.cRisto Suominen2008-04-241-16/+16
| | | | | | | Coding style corrections for burgundy.c. Signed-off-by: Risto Suominen <Risto.Suominen@gmail.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
* [ALSA] snd-powermac: Burgundy mixers for B&W and iMacRisto Suominen2008-04-242-83/+381
| | | | | | | | Add mixer controls and correct headphone detection bits for PowerMac G3 B&W and iMac G3 Tray-loading, both having Burgundy chipset. Signed-off-by: Risto Suominen <Risto.Suominen@gmail.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
* [ALSA] snd-powermac: style awacs.s and awacs.hRisto Suominen2008-04-242-37/+62
| | | | | | | Coding style corrections for awacs.c and awacs.h. Signed-off-by: Risto Suominen <Risto.Suominen@gmail.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
* [ALSA] snd-powermac: AWACS and Screamer mixers for PM7500, Beige, and iMac SLRisto Suominen2008-04-242-36/+151
| | | | | | | | | Add mixer controls and correct headphone detection bits for PowerMacs 7300/7500 (AWACS) and G3 Beige (Screamer), and iMac G3 Slot-loading (Screamer). Signed-off-by: Risto Suominen <Risto.Suominen@gmail.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
* [ALSA] snd-powermac: style pmac.cRisto Suominen2008-04-241-2/+2
| | | | | | | Coding style corrections for pmac.c. Signed-off-by: Risto Suominen <Risto.Suominen@gmail.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
* [ALSA] snd-powermac: enable headphone detectionRisto Suominen2008-04-241-3/+3
| | | | | | | | Enable port change interrupt while initialising AWACS, Screamer, and Burgundy chipsets. Signed-off-by: Risto Suominen <Risto.Suominen@gmail.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
* ALSA: Storage class should be before const qualifierTobias Klauser2008-04-211-1/+1
| | | | | | | | | | | The C99 specification states in section 6.11.5: The placement of a storage-class specifier other than at the beginning of the declaration specifiers in a declaration is an obsolescent feature. Signed-off-by: Tobias Klauser <tklauser@distanz.ch> Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com>
* Dont touch fs_struct in driversJan Blunck2008-02-142-6/+4
| | | | | | | | | | | | | | | 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>
* [ALSA] snd-powermac: handle dead DMA transfersT. H. Huth2008-01-311-5/+102
| | | | | | | | | | | | | | | | | | | This patch provides the snd-powermac sound driver with the ability to handle dead DMA transfers. If a dead DMA transfer is detected, the driver now sets up a new DMA transfer to continue with the sound output at the point where the old transfer died. This dead DMA transfer handling has become necessary with recent kernels on certain G4 PowerMacs. Please refer to the following URLs for more information: https://bugtrack.alsa-project.org/alsa-bug/view.php?id=3126 https://bugs.launchpad.net/ubuntu/+source/linux-source-2.6.20/+bug/87652 http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=436723 The patch is based on the dead DMA transfer handling code from the old dmasound driver which can be found in the file sound/oss/dmasound/dmasound_awacs.c in the Linux source code. Signed-off-by: T. H. Huth <th.huth@googlemail.com> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@perex.cz>
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