diff options
| author | Takashi Sakamoto <o-takashi@sakamocchi.jp> | 2014-04-25 22:45:20 +0900 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2014-05-26 14:31:03 +0200 |
| commit | 618eabeae711c56d376daa147c6a684116d68705 (patch) | |
| tree | 5c3aae69f57c84a57437645d40bcd7c0f1b18e67 /sound/firewire/bebob/bebob.h | |
| parent | fbbebd2c40795e87f1280ca4d963f7cbe1c83168 (diff) | |
ALSA: bebob: Add hwdep interface
This interface is designed for mixer/control application. By using hwdep
interface, the application can get information about firewire node, can
lock/unlock kernel streaming and can get notification at starting/stopping
kernel streaming.
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/firewire/bebob/bebob.h')
| -rw-r--r-- | sound/firewire/bebob/bebob.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/sound/firewire/bebob/bebob.h b/sound/firewire/bebob/bebob.h index b41bb913bac5..e8a5e447ff17 100644 --- a/sound/firewire/bebob/bebob.h +++ b/sound/firewire/bebob/bebob.h @@ -24,6 +24,8 @@ #include <sound/rawmidi.h> #include <sound/pcm.h> #include <sound/pcm_params.h> +#include <sound/firewire.h> +#include <sound/hwdep.h> #include "../lib.h" #include "../fcp.h" @@ -75,6 +77,11 @@ struct snd_bebob { rx_stream_formations[SND_BEBOB_STRM_FMT_ENTRIES]; int sync_input_plug; + + /* for uapi */ + int dev_lock_count; + bool dev_lock_changed; + wait_queue_head_t hwdep_wait; }; static inline int @@ -175,12 +182,18 @@ void snd_bebob_stream_stop_duplex(struct snd_bebob *bebob); void snd_bebob_stream_update_duplex(struct snd_bebob *bebob); void snd_bebob_stream_destroy_duplex(struct snd_bebob *bebob); +void snd_bebob_stream_lock_changed(struct snd_bebob *bebob); +int snd_bebob_stream_lock_try(struct snd_bebob *bebob); +void snd_bebob_stream_lock_release(struct snd_bebob *bebob); + void snd_bebob_proc_init(struct snd_bebob *bebob); int snd_bebob_create_midi_devices(struct snd_bebob *bebob); int snd_bebob_create_pcm_devices(struct snd_bebob *bebob); +int snd_bebob_create_hwdep_device(struct snd_bebob *bebob); + #define SND_BEBOB_DEV_ENTRY(vendor, model) \ { \ .match_flags = IEEE1394_MATCH_VENDOR_ID | \ |