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| author | Jaroslav Kysela <perex@perex.cz> | 2010-03-26 10:28:46 +0100 |
|---|---|---|
| committer | Jaroslav Kysela <perex@perex.cz> | 2010-03-26 10:37:39 +0100 |
| commit | cd508fe58b07499403e806b558c7f15c90442292 (patch) | |
| tree | 5ec4c40b7c7b84595c65f5f9dda96e1a01eacc2b /sound/pci/hda/hda_codec.c | |
| parent | 306ff3e473a970f88680e8355c0900fcab0357e2 (diff) | |
| download | linux-stable-cd508fe58b07499403e806b558c7f15c90442292.tar.gz linux-stable-cd508fe58b07499403e806b558c7f15c90442292.tar.bz2 linux-stable-cd508fe58b07499403e806b558c7f15c90442292.zip | |
ALSA: hda-intel - add special 'hwio' model to bypass initialization
Using the 'model=hwio' option, the driver bypasses any codec
initialization and the reset procedure for codecs is also
bypassed. This mode is usefull to enable direct access using
hwdep interface (using hdaverb or hda-analyzer tools) and
retain codec setup from BIOS.
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Diffstat (limited to 'sound/pci/hda/hda_codec.c')
| -rw-r--r-- | sound/pci/hda/hda_codec.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c index 0e76ac2b2ace..cf6280bdaa19 100644 --- a/sound/pci/hda/hda_codec.c +++ b/sound/pci/hda/hda_codec.c @@ -609,11 +609,15 @@ int /*__devinit*/ snd_hda_bus_new(struct snd_card *card, } EXPORT_SYMBOL_HDA(snd_hda_bus_new); +#define is_hwio_config(codec) \ + (codec->modelname && !strcmp(codec->modelname, "hwio")) #ifdef CONFIG_SND_HDA_GENERIC #define is_generic_config(codec) \ - (codec->modelname && !strcmp(codec->modelname, "generic")) + ((codec->modelname && !strcmp(codec->modelname, "generic")) || \ + is_hwio_config(codec)) #else -#define is_generic_config(codec) 0 +#define is_generic_config(codec) \ + is_hwio_config(codec) #endif #ifdef MODULE @@ -1113,6 +1117,8 @@ int snd_hda_codec_configure(struct hda_codec *codec) } if (is_generic_config(codec)) { + if (is_hwio_config(codec)) + goto patched; err = snd_hda_parse_generic_codec(codec); goto patched; } |