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| author | Takashi Sakamoto <o-takashi@sakamocchi.jp> | 2014-12-08 16:10:49 +0100 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2014-12-10 10:50:00 +0100 |
| commit | 8985f4ac1c42bd25799f294f4e87fa73064673c7 (patch) | |
| tree | 04f57545162b29abfc8a6b0c2d2833721b4bcc78 /sound/firewire/oxfw/oxfw.h | |
| parent | ALSA: oxfw: Add support for capture/playback MIDI messages (diff) | |
| download | linux-8985f4ac1c42bd25799f294f4e87fa73064673c7.tar.xz linux-8985f4ac1c42bd25799f294f4e87fa73064673c7.zip | |
ALSA: oxfw: Add hwdep interface
This interface is designed for mixer/control application. By using this
interface, an 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>
Acked-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/firewire/oxfw/oxfw.h')
| -rw-r--r-- | sound/firewire/oxfw/oxfw.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/sound/firewire/oxfw/oxfw.h b/sound/firewire/oxfw/oxfw.h index 83a54fc73a11..cace5ad4fe76 100644 --- a/sound/firewire/oxfw/oxfw.h +++ b/sound/firewire/oxfw/oxfw.h @@ -12,6 +12,7 @@ #include <linux/mod_devicetable.h> #include <linux/mutex.h> #include <linux/slab.h> +#include <linux/compat.h> #include <sound/control.h> #include <sound/core.h> @@ -20,6 +21,8 @@ #include <sound/pcm_params.h> #include <sound/info.h> #include <sound/rawmidi.h> +#include <sound/firewire.h> +#include <sound/hwdep.h> #include "../lib.h" #include "../fcp.h" @@ -64,6 +67,10 @@ struct snd_oxfw { s16 volume[6]; s16 volume_min; s16 volume_max; + + int dev_lock_count; + bool dev_lock_changed; + wait_queue_head_t hwdep_wait; }; /* @@ -124,6 +131,10 @@ int snd_oxfw_stream_get_current_formation(struct snd_oxfw *oxfw, int snd_oxfw_stream_discover(struct snd_oxfw *oxfw); +void snd_oxfw_stream_lock_changed(struct snd_oxfw *oxfw); +int snd_oxfw_stream_lock_try(struct snd_oxfw *oxfw); +void snd_oxfw_stream_lock_release(struct snd_oxfw *oxfw); + int snd_oxfw_create_pcm(struct snd_oxfw *oxfw); int snd_oxfw_create_mixer(struct snd_oxfw *oxfw); @@ -131,3 +142,5 @@ int snd_oxfw_create_mixer(struct snd_oxfw *oxfw); void snd_oxfw_proc_init(struct snd_oxfw *oxfw); int snd_oxfw_create_midi(struct snd_oxfw *oxfw); + +int snd_oxfw_create_hwdep(struct snd_oxfw *oxfw); |