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2006-11-28[ALSA] version 1.0.13Jaroslav Kysela
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
2006-10-22[ALSA] version 1.0.13Jaroslav Kysela
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
2006-10-06[ALSA] version 1.0.13Jaroslav Kysela
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
2006-10-06[ALSA] Handle file operations during snd_card disconnects using static ↵Karsten Wiese
file->f_op Alsa used to kmalloc one file->f_op per file per disconnecting snd_card. This led to oopses sometimes when file->f_op was freed before __fput() finished. Patch adds a virtual device for disconnect: VDD. VDD consists of: LIST_HEAD(shutdown_files) protected by DEFINE_SPINLOCK(shutdown_mutex) static struct file_operations snd_shutdown_f_ops and functions assigned to it Additions to struct snd_monitor_file to specify if instance is hidden by VDD or not. A VDD's instance is created in snd_card_disconnect() under the card->files_lock. cleaned up in snd_card_file_remove() under the card->files_lock. Signed-off-by: Karsten Wiese <fzu@wemgehoertderstaat.de> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@suse.cz>
2006-10-05IRQ: Maintain regs pointer globally rather than passing to IRQ handlersDavid Howells
Maintain a per-CPU global "struct pt_regs *" variable which can be used instead of passing regs around manually through all ~1800 interrupt handlers in the Linux kernel. The regs pointer is used in few places, but it potentially costs both stack space and code to pass it around. On the FRV arch, removing the regs parameter from all the genirq function results in a 20% speed up of the IRQ exit path (ie: from leaving timer_interrupt() to leaving do_IRQ()). Where appropriate, an arch may override the generic storage facility and do something different with the variable. On FRV, for instance, the address is maintained in GR28 at all times inside the kernel as part of general exception handling. Having looked over the code, it appears that the parameter may be handed down through up to twenty or so layers of functions. Consider a USB character device attached to a USB hub, attached to a USB controller that posts its interrupts through a cascaded auxiliary interrupt controller. A character device driver may want to pass regs to the sysrq handler through the input layer which adds another few layers of parameter passing. I've build this code with allyesconfig for x86_64 and i386. I've runtested the main part of the code on FRV and i386, though I can't test most of the drivers. I've also done partial conversion for powerpc and MIPS - these at least compile with minimal configurations. This will affect all archs. Mostly the changes should be relatively easy. Take do_IRQ(), store the regs pointer at the beginning, saving the old one: struct pt_regs *old_regs = set_irq_regs(regs); And put the old one back at the end: set_irq_regs(old_regs); Don't pass regs through to generic_handle_irq() or __do_IRQ(). In timer_interrupt(), this sort of change will be necessary: - update_process_times(user_mode(regs)); - profile_tick(CPU_PROFILING, regs); + update_process_times(user_mode(get_irq_regs())); + profile_tick(CPU_PROFILING); I'd like to move update_process_times()'s use of get_irq_regs() into itself, except that i386, alone of the archs, uses something other than user_mode(). Some notes on the interrupt handling in the drivers: (*) input_dev() is now gone entirely. The regs pointer is no longer stored in the input_dev struct. (*) finish_unlinks() in drivers/usb/host/ohci-q.c needs checking. It does something different depending on whether it's been supplied with a regs pointer or not. (*) Various IRQ handler function pointers have been moved to type irq_handler_t. Signed-Off-By: David Howells <dhowells@redhat.com> (cherry picked from 1b16e7ac850969f38b375e511e3fa2f474a33867 commit)
2006-10-01[PATCH] maximum latency tracking: ALSA supportTakashi Iwai
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>
2006-09-23[ALSA] ak4xxx - Remove bogus IPGA controlsTakashi Iwai
Remove IPGA volume controls and merge the IPGA range to ADC volume controls. These two volumes are not really independent but connected simply in different ranges 0-0x7f and 0x80-max. It doesn't make sense to provide two controls. Since both 0x7f and 0x80 specify 0dB, a hack is needed for IPGA range to skip 0x80 (increment one) for such controls. Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@suse.cz>
2006-09-23[ALSA] Add pcm_class attribute to PCM sysfs entryTakashi Iwai
This patch adds a new attribute, pcm_class, to each PCM sysfs entry. It's useful to detect what kind of PCM stream is, for example, HAL can check whether it's a modem or not. Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@suse.cz>
2006-09-23[ALSA] Add definition of TLV dB range compoundTakashi Iwai
Added the definition of TLV dB range compound. It contains one or more dB-range or linear-volume TLV entries with min/max ranges. Used for volume controls with non-linear curves. Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@suse.cz>
2006-09-23[ALSA] Clean up and add TLV support to AK4xxx i2c driverTakashi Iwai
- Clean up the code in AK4xxx-ADDA i2c code. - Fix capture gain controls for AK5365 - Changed the static table for DAC/ADC mixer labels to use structs - Implemented TLV entries for each AK codec The volumes in AK4524, AK4528 and AK5365 are corrected with a table to be suitable for dB conversion. Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@suse.cz>
2006-09-23[ALSA] Add the definition of linear volume TLVTakashi Iwai
Added the definition of linear volume TLV type. Some DSP chips and codecs (e.g. AK codec) use linear volume control. Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@suse.cz>
2006-09-23[ALSA] Add dB scale information to vxpocket and vx222 driversTakashi Iwai
Added the dB scale information to vxpocket and vx222 drivers. Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@suse.cz>
2006-09-23[ALSA] Add dB scale information to ad1848 driverTakashi Iwai
Added the dB scale information to ad1848 driver. Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@suse.cz>
2006-09-23[ALSA] Revolution 5.1 - add AK5365 ADC supportJochen Voss
Add support for the AK5365 ADC. Signed-off-by: Jochen Voss <voss@seehuhn.de> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@suse.cz>
2006-09-23[ALSA] Fix control/status mmap with shared PCM substreamTakashi Iwai
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>
2006-09-23[ALSA] snd-emu10k1: Implement dB gain infomation.James Courtier-Dutton
Signed-off-by: James Courtier-Dutton <James@superbug.co.uk> Signed-off-by: Jaroslav Kysela <perex@suse.cz>
2006-09-23[ALSA] Remove unused tlv_rw field from struct snd_kcontrolTakashi Iwai
Remove unused tlv_rw field from struct snd_kcontrol. The callback is set in tlv.c field, instead. Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@suse.cz>
2006-09-23[ALSA] Control API - more robust TLV implementationJaroslav Kysela
- added callback option - added READ/WRITE/COMMAND flags to access member - added WRITE/COMMAND ioctls - added SNDRV_CTL_EVENT_MASK_TLV for TLV change notifications - added TLV support to ELEM_ADD ioctl Signed-off-by: Jaroslav Kysela <perex@suse.cz>
2006-09-23[ALSA] Add experimental support of aggressive AC97 power-saving modeTakashi Iwai
Added CONFIG_SND_AC97_POWER_SAVE kernel config to enable the support of aggressive AC97 power-saving mode. In this mode, the AC97 powerdown register bits are dynamically controlled at each open/close of PCM streams. The mode is activated via power_save option for snd-ac97-codec driver. As default it's off. It can be turned on/off on the fly via sysfs, too. Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@suse.cz>
2006-09-23[ALSA] Deprecate snd_card_free_in_thread()Takashi Iwai
Deprecated snd_card_free_in_thread(), replaced with snd_card_free_when_closed(). Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@suse.cz>
2006-09-23[ALSA] Unregister device files at disconnectionTakashi Iwai
Orignally proposed by Sam Revitch <sam.revitch@gmail.com>. Unregister device files at disconnection to avoid the futher accesses. Also, the dev_unregister callback is removed and replaced with the combination of disconnect + free. A new function snd_card_free_when_closed() is introduced, which is used in USB disconnect callback. Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@suse.cz>
2006-09-23[ALSA] Fix disconnection of proc interfaceTakashi Iwai
- Add the linked list to each proc entry to enable a single-shot disconnection (unregister) - Deprecate snd_info_unregister(), use snd_info_free_entry() - Removed NULL checks of snd_info_free_entry() Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@suse.cz>
2006-09-23[ALSA] Control API - TLV implementation for additional information like dB scaleJaroslav Kysela
This patch implements a TLV mechanism to transfer an additional information like dB scale to the user space. The types might be extended in future. Acked-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@suse.cz>
2006-09-19[HEADERS] One line per header in Kbuild files to reduce conflictsDavid Woodhouse
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-07-12[ALSA] Fix section mismatch errors in ALSA PCI driversTakashi Iwai
Fixed 'section mismatch' errors in ALSA PCI drivers: - removed invalid __devinitdata from pci id tables - fix/remove __devinit of functions called in suspend/resume Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@suse.cz>
2006-07-12[ALSA] remove unused snd_minor.name fieldClemens Ladisch
Drop the snd_minor structure's name field that was just a helper for devfs device deregistration. Signed-off-by: Clemens Ladisch <clemens@ladisch.de> Signed-off-by: Jaroslav Kysela <perex@suse.cz>
2006-07-04Merge git://git.infradead.org/hdrinstall-2.6Linus Torvalds
* git://git.infradead.org/hdrinstall-2.6: Remove export of include/linux/isdn/tpam.h Remove <linux/i2c-id.h> and <linux/i2c-algo-ite.h> from userspace export Restrict headers exported to userspace for SPARC and SPARC64 Add empty Kbuild files for 'make headers_install' in remaining arches. Add Kbuild file for Alpha 'make headers_install' Add Kbuild file for SPARC 'make headers_install' Add Kbuild file for IA64 'make headers_install' Add Kbuild file for S390 'make headers_install' Add Kbuild file for i386 'make headers_install' Add Kbuild file for x86_64 'make headers_install' Add Kbuild file for PowerPC 'make headers_install' Add generic Kbuild files for 'make headers_install' Basic implementation of 'make headers_check' Basic implementation of 'make headers_install'
2006-07-02[PATCH] irq-flags: sound: Use the new IRQF_ constantsThomas Gleixner
Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@elte.hu> Cc: "David S. Miller" <davem@davemloft.net> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Jaroslav Kysela <perex@suse.cz> Cc: Takashi Iwai <tiwai@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-28[ALSA] ak4xxx-adda - Code clean-upTakashi Iwai
Fix spaces, fold lines to fit 80 columns in ak4xxx-adda driver codes. Split a long reset function to each codec routine just for better readability. Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@suse.cz>
2006-06-28[ALSA] Stereo controls for M-Audio Revolution cardsJani Alinikula
This patch adds stereo controls to revo cards by making the ak4xxx driver mixers configurable from the card driver. Signed-off-by: Jani Alinikula <janialinikula@gmail.com> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@suse.cz>
2006-06-28[ALSA] AD1888 mixer controls for DC modeJaya Kumar
This patch adds two mixer controls. The V_REFOUT enable is a documented register that couples the microphone input lines to the V_REFOUT DC source. The High Pass Filter enable in the AC97_AD_TEST2 (0x5c) is an undocumented register provided by Miller Puckette via Analog Devices that enables the AD codec to apply a high pass filter to the input. Signed-off-by: Jaya Kumar <jayakumar.alsa@gmail.com> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@suse.cz>
2006-06-28[ALSA] Suppress irq handler mismatch messages in ALSA ISA driversTakashi Iwai
Suppress 'irq handler mismatch' messages at auto-probing of irqs in ALSA ISA drivers. Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@suse.cz>
2006-06-25V4L/DVB (4210b): git-dvb: tea575x-tuner build fixAndrew Morton
In file included from sound/i2c/other/tea575x-tuner.c:30: include/sound/tea575x-tuner.h:36: error: field 'vd' has incomplete type include/sound/tea575x-tuner.h:37: error: field 'fops' has incomplete type sound/i2c/other/tea575x-tuner.c:89: warning: 'struct inode' declared inside parameter list sound/i2c/other/tea575x-tuner.c:89: warning: its scope is only this definition or declaration, which is probably not what you want sound/i2c/other/tea575x-tuner.c: In function 'snd_tea575x_ioctl': sound/i2c/other/tea575x-tuner.c:91: warning: implicit declaration of function 'video_devdata' sound/i2c/other/tea575x-tuner.c:91: warning: initialization makes pointer from integer without a cast sound/i2c/other/tea575x-tuner.c:92: warning: implicit declaration of function 'video_get_drvdata' sound/i2c/other/tea575x-tuner.c:92: warning: initialization makes pointer from integer without a cast sound/i2c/other/tea575x-tuner.c:96: warning: implicit declaration of function '_IOR' sound/i2c/other/tea575x-tuner.c:96: error: syntax error before 'struct' sound/i2c/other/tea575x-tuner.c:99: error: 'v' undeclared (first use in this function) sound/i2c/other/tea575x-tuner.c:99: error: (Each undeclared identifier is reported only once sound/i2c/other/tea575x-tuner.c:99: error: for each function it appears in.) sound/i2c/other/tea575x-tuner.c:108: warning: implicit declaration of function 'copy_to_user' sound/i2c/other/tea575x-tuner.c:112: warning: implicit declaration of function '_IOWR' sound/i2c/other/tea575x-tuner.c:112: error: syntax error before 'struct' sound/i2c/other/tea575x-tuner.c:115: warning: implicit declaration of function 'copy_from_user' sound/i2c/other/tea575x-tuner.c: At top level: sound/i2c/other/tea575x-tuner.c:129: error: syntax error before 'case' sound/i2c/other/tea575x-tuner.c:146: warning: type defaults to 'int' in declaration of 'snd_tea575x_set_freq' sound/i2c/other/tea575x-tuner.c:146: warning: parameter names (without types) in function declaration sound/i2c/other/tea575x-tuner.c:146: error: conflicting types for 'snd_tea575x_set_freq' sound/i2c/other/tea575x-tuner.c:62: error: previous definition of 'snd_tea575x_set_freq' was here sound/i2c/other/tea575x-tuner.c:146: warning: data definition has no type or storage class sound/i2c/other/tea575x-tuner.c:147: error: syntax error before 'return' sound/i2c/other/tea575x-tuner.c:151: error: syntax error before '&' token sound/i2c/other/tea575x-tuner.c:152: error: syntax error before '.' token sound/i2c/other/tea575x-tuner.c:152: warning: type defaults to 'int' in declaration of 'strcpy' sound/i2c/other/tea575x-tuner.c:152: warning: function declaration isn't a prototype sound/i2c/other/tea575x-tuner.c:152: error: conflicting types for 'strcpy' sound/i2c/other/tea575x-tuner.c:152: warning: data definition has no type or storage class sound/i2c/other/tea575x-tuner.c: In function 'snd_tea575x_init': sound/i2c/other/tea575x-tuner.c:194: warning: implicit declaration of function 'video_set_drvdata' sound/i2c/other/tea575x-tuner.c:197: error: 'video_exclusive_open' undeclared (first use in this function) sound/i2c/other/tea575x-tuner.c:198: error: 'video_exclusive_release' undeclared (first use in this function) sound/i2c/other/tea575x-tuner.c:200: warning: implicit declaration of function 'video_register_device' sound/i2c/other/tea575x-tuner.c:200: error: 'VFL_TYPE_RADIO' undeclared (first use in this function) sound/i2c/other/tea575x-tuner.c: In function 'snd_tea575x_exit': sound/i2c/other/tea575x-tuner.c:215: warning: implicit declaration of function 'video_unregister_device' distcc[7333] ERROR: compile sound/i2c/other/tea575x-tuner.c on x/32 failed make[1]: *** [sound/i2c/other/tea575x-tuner.o] Error 1 Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2006-06-22[ALSA] version 1.0.12rc1Jaroslav Kysela
2006-06-22[ALSA] Disable AC97 AUX and VIDEO controls for WM9705 touchscreenRodolfo Giometti
This patch by Rodolfo Giometti disables the AC97 AUX and VIDEO controls on the WM9705 when the touchscreen is selected as the AUX and VIDEO lines are shared with the touch controller. Changes:- o Added AC97_HAS_NO_AUX flag o Test for AC97_HAS_NO_AUX flag in snd_ac97_mixer_build() o Sets AC97_HAS_NO_VIDEO and AC97_HAS_NO_AUX in patch_wolfson05() when WM9705 touch driver is selected. Signed-off-by: Rodolfo Giometti <giometti@linux.it> Signed-off-by: Liam Girdwood <liam.girdwood@wolfsonmicro.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2006-06-22[ALSA] Change an arugment of snd_mpu401_uart_new() to bit flagsTakashi Iwai
Change the 5th argument of snd_mpu401_uart_new() to bit flags instead of a boolean. The argument takes bits that consist of MPU401_INFO_XXX flags. The callers that used the value 1 there are replaced with MPU401_INFO_INTEGRATED. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2006-06-22[ALSA] Fix rwlock around snd_iprintf() in sound coreTakashi Iwai
Fixed rwlock around snd_iprintf() in sound core part. Replaced with mutex. Also, make mutex and flags static variables with addition of snd_card_locked() function (just for sound.c). Signed-off-by: Takashi Iwai <tiwai@suse.de>
2006-06-22[ALSA] rawmidi: add get_port_info callback for sequencer information flagsClemens Ladisch
Add a get_port_info callback to the snd_rawmidi_global_ops structure to allow the USB MIDI driver to supply information flags for the sequencer ports created by seq_midi. Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
2006-06-22[ALSA] add more sequencer port type information bitsClemens Ladisch
Add four new information flags SNDRV_SEQ_PORT_TYPE_HARDWARE, _SOFTWARE, _SYNTHESIZER, _PORT for sequencer ports. This makes it easier for apps like Rosegarden to make policy decisions based on the port type. Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
2006-06-22[ALSA] Fix mmap_count with O_APPEND opened streamsTakashi Iwai
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>
2006-06-22[ALSA] Add O_APPEND flag support to PCMTakashi Iwai
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>
2006-06-22[ALSA] Remove unneeded read/write_size fields in proc text opsTakashi Iwai
Remove unneeded read/write_size fields in proc text ops. snd_info_set_text_ops() is fixed, too. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2006-06-22[ALSA] Make buffer size of proc text interface variableTakashi Iwai
Make the read/write buffer size of proc text interface variable. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2006-06-22[ALSA] Move OSS-specific hw_params helper to snd-pcm-oss moduleTakashi Iwai
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>
2006-06-22[ALSA] Clean up ugly hacks in pcm_params.hTakashi Iwai
Clean up ugly hacks for sync with alsa-lib in pcm_params.h. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2006-06-22[ALSA] emu10k1: Add support for Audigy4 (not Pro)James Courtier-Dutton
Signed-off-by: James Courtier-Dutton <James@superbug.co.uk>
2006-06-18Add generic Kbuild files for 'make headers_install'David Woodhouse
This adds the Kbuild files listing the files which are to be installed by the 'headers_install' make target, in generic directories. Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-05-04Fix integer types in <sound/hdsp.h> SNDRV_HDSP_IOCTL_GET_PEAK_RMS ioctlDavid Woodhouse
We should be using __u32 et al, not the kernel-private types. Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-05-01Merge git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6David Woodhouse
Reverting c7afb48eb5147be9eb9789b4161462d246451ac2 since a better (but more intrusive) fix is now merged upstream. Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-04-27[ALSA] Fix Oops at rmmod with CONFIG_SND_VERBOSE_PROCFS=nTakashi Iwai
Fixed Oops at rmmod with CONFIG_SND_VERBOSE_PROCFS=n. Add ifdef to struct fields for optimization and better compile checks. Signed-off-by: Takashi Iwai <tiwai@suse.de>