diff options
Diffstat (limited to 'sound/core/Kconfig')
| -rw-r--r-- | sound/core/Kconfig | 146 |
1 files changed, 122 insertions, 24 deletions
diff --git a/sound/core/Kconfig b/sound/core/Kconfig index d1e800b9866..313f22e9d92 100644 --- a/sound/core/Kconfig +++ b/sound/core/Kconfig @@ -1,24 +1,31 @@ # ALSA soundcard-configuration config SND_TIMER tristate - depends on SND config SND_PCM tristate select SND_TIMER - depends on SND + +config SND_DMAENGINE_PCM + tristate config SND_HWDEP tristate - depends on SND config SND_RAWMIDI tristate - depends on SND + +config SND_COMPRESS_OFFLOAD + tristate + +# To be effective this also requires INPUT - users should say: +# select SND_JACK if INPUT=y || INPUT=SND +# to avoid having to force INPUT on. +config SND_JACK + bool config SND_SEQUENCER tristate "Sequencer support" - depends on SND select SND_TIMER help Say Y or M to enable MIDI sequencer and router support. This @@ -43,12 +50,11 @@ config SND_SEQ_DUMMY will be called snd-seq-dummy. config SND_OSSEMUL + select SOUND_OSS_CORE bool - depends on SND config SND_MIXER_OSS tristate "OSS Mixer API" - depends on SND select SND_OSSEMUL help To enable OSS mixer API emulation (/dev/mixer*), say Y here @@ -61,7 +67,6 @@ config SND_MIXER_OSS config SND_PCM_OSS tristate "OSS PCM (digital audio) API" - depends on SND select SND_OSSEMUL select SND_PCM help @@ -73,9 +78,18 @@ config SND_PCM_OSS To compile this driver as a module, choose M here: the module will be called snd-pcm-oss. +config SND_PCM_OSS_PLUGINS + bool "OSS PCM (digital audio) API - Include plugin system" + depends on SND_PCM_OSS + default y + help + If you disable this option, the ALSA's OSS PCM API will not + support conversion of channels, formats and rates. It will + behave like most of new OSS/Free drivers in 2.4/2.6 kernels. + config SND_SEQUENCER_OSS bool "OSS Sequencer API" - depends on SND && SND_SEQUENCER + depends on SND_SEQUENCER select SND_OSSEMUL help Say Y here to enable OSS sequencer emulation (both @@ -83,12 +97,33 @@ config SND_SEQUENCER_OSS Many programs still use the OSS API, so say Y. + If you choose M in "Sequencer support" (SND_SEQUENCER), + this will be compiled as a module. The module will be called + snd-seq-oss. + +config SND_HRTIMER + tristate "HR-timer backend support" + depends on HIGH_RES_TIMERS + select SND_TIMER + help + Say Y here to enable HR-timer backend for ALSA timer. ALSA uses + the hrtimer as a precise timing source. The ALSA sequencer code + also can use this timing source. + To compile this driver as a module, choose M here: the module - will be called snd-seq-oss. + will be called snd-hrtimer. + +config SND_SEQ_HRTIMER_DEFAULT + bool "Use HR-timer as default sequencer timer" + depends on SND_HRTIMER && SND_SEQUENCER + default y + help + Say Y here to use the HR-timer backend as the default sequencer + timer. config SND_RTCTIMER tristate "RTC Timer support" - depends on SND && RTC + depends on RTC select SND_TIMER help Say Y here to enable RTC timer support for ALSA. ALSA uses @@ -99,9 +134,59 @@ config SND_RTCTIMER To compile this driver as a module, choose M here: the module will be called snd-rtctimer. + Note that this option is exclusive with the new RTC drivers + (CONFIG_RTC_CLASS) since this requires the old API. + +config SND_SEQ_RTCTIMER_DEFAULT + bool "Use RTC as default sequencer timer" + depends on SND_RTCTIMER && SND_SEQUENCER + depends on !SND_SEQ_HRTIMER_DEFAULT + default y + help + Say Y here to use the RTC timer as the default sequencer + timer. This is strongly recommended because it ensures + precise MIDI timing even when the system timer runs at less + than 1000 Hz. + + If in doubt, say Y. + +config SND_DYNAMIC_MINORS + bool "Dynamic device file minor numbers" + help + If you say Y here, the minor numbers of ALSA device files in + /dev/snd/ are allocated dynamically. This allows you to have + more than 8 sound cards, but requires a dynamic device file + system like udev. + + If you are unsure about this, say N here. + +config SND_MAX_CARDS + int "Max number of sound cards" + range 4 256 + default 32 + depends on SND_DYNAMIC_MINORS + help + Specify the max number of sound cards that can be assigned + on a single machine. + +config SND_SUPPORT_OLD_API + bool "Support old ALSA API" + default y + help + Say Y here to support the obsolete ALSA PCM API (ver.0.9.0 rc3 + or older). + +config SND_VERBOSE_PROCFS + bool "Verbose procfs contents" + depends on PROC_FS + default y + help + Say Y here to include code for verbose procfs contents (provides + useful information to developers when a problem occurs). On the + other side, it makes the ALSA subsystem larger. + config SND_VERBOSE_PRINTK bool "Verbose printk" - depends on SND help Say Y here to enable verbose log messages. These messages will help to identify source file and position containing @@ -111,23 +196,36 @@ config SND_VERBOSE_PRINTK config SND_DEBUG bool "Debug" - depends on SND help Say Y here to enable ALSA debug code. -config SND_DEBUG_MEMORY - bool "Debug memory" +config SND_DEBUG_VERBOSE + bool "More verbose debug" depends on SND_DEBUG help - Say Y here to enable debugging of memory allocations. - -config SND_DEBUG_DETECT - bool "Debug detection" - depends on SND_DEBUG + Say Y here to enable extra-verbose debugging messages. + + Let me repeat: it enables EXTRA-VERBOSE DEBUGGING messages. + So, say Y only if you are ready to be annoyed. + +config SND_PCM_XRUN_DEBUG + bool "Enable PCM ring buffer overrun/underrun debugging" + default n + depends on SND_DEBUG && SND_VERBOSE_PROCFS help - Say Y here to enable extra-verbose log messages printed when - detecting devices. + Say Y to enable the PCM ring buffer overrun/underrun debugging. + It is usually not required, but if you have trouble with + sound clicking when system is loaded, it may help to determine + the process or driver which causes the scheduling gaps. -config SND_GENERIC_PM +config SND_VMASTER bool - depends on SND + +config SND_KCTL_JACK + bool + +config SND_DMA_SGBUF + def_bool y + depends on X86 + +source "sound/core/seq/Kconfig" |